Win7 64 issues update

Similar Questions

• I have some serious issues update to existing and new to download applications.

  Hello

  I just bought a laptop with w8
  I have some serious issues update to existing and new to download applications.
  When I click to download an app it still works but does not settle anything.
  at this point, I can't click the back (arrow) button to return to the main image of the store
  the windows button works and I can continue to use my computer
  the new application (or the update for an existing one) is not installed.
  Here are some useful points:
  -No installation other than Mc. provided McAfee antivirus preinstalled.
  -computer is not in a proxy connection
  -windows update does not work, when I click it works forever without doing anything
  -J' have tried to run the troubleshooter, but it fixes all the time the same 2 questions and that solves nothing
  -J' I reset the cache to store without change
  -without any logical explanation, some updates and downloads have managed at the beginning. then, when the problem started I have reset the cache and I could download a couple more. now everything is blocked and no solution found on this forum does not work.
  Please help me
  thanx
   
  Original title: problem with store windows

  Hello

  I suggest to run the following command and check to see if it helps.

  To fix Windows Update errors, use Deployment Image Servicing and Management.

  1. open an elevated command prompt. To do this, click Start, click programs, accessories principally made, right-click Guest, and then click Run as administrator. If you are prompted for an administrator password or a confirmation, type the password, or click on allow.

  2 type the following commands. Press ENTER after each command.

  o DISM.exe / Online/Cleanup-image /Scanhealth

  o DISM.exe / Online/Cleanup-image /Restorehealth

  3. close the command prompt, and then run Windows Update again.

• Win7, unable to update windows 64-bit.

  Hi, I bought a new computer 2 days ago and it was brand new, containing windows 7 Home premium 64-bit. When I try to use windows update nothing happends, it will just look for, if he can find something he does not download or install it, tried for hours and hours for 2 days now it will freeze just on "search for updates".

  I ain't get error code 8008005, Windows 7 is the code that I saw were not to give me a good start so far. How is it, I can't use windows update on Win7? I even tried to reset the laptop to factory default settings. A way to solve this problem?

  Please answer questions following diagnosis by number in your next reply (no need to quote this post):

  1. what application or antivirus security suite is installed and your current subscription?  What anti-spyware (other than Defender) applications?  What third-party firewall (if applicable)?

  2. do you have a Norton or McAfee free trial come preinstalled on the computer when you bought it? (No matter if you have never used or activated).

  ~ Robear Dyer (PA Bear) ~ MS MVP (that is to say, mail, security, Windows & Update Services) since 2002 ~ WARNING: MS MVPs represent or work for Microsoft

• Code 643 issues update for the Net. Framework security updates. Can someone Please helpme?

  I have a code: 643 not allowing updates. There are 5 total updates that fail every time. What can I do about it? All 5 updates are net. Framework security updates. Can someone Please helpme?

  Try the following to see if it solves the problem:

  http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-windows_update/Win7-HP-update-failed-for-framework-4/9480305c-1a57-4798-bf6a-37a5573c7c3c >>

  UTC/GMT is 18:19 Monday, December 19, 2011

• Just upgraded to Win7. Cannot update, cannot download from the internet?

  My main computer recently crashed so in the meantime, I took out an old computer, I have not used since 2011. It was in Vista, so I bought a Win 7 Pro license.

  I installed Win 7 and tried to run updates, but the model seems just look for updates for hours. I have run diagnostics that looks also some problems and doesn't happen (everything continues constantly to research) results. The task manager has not reported updates windows or diagnosis gel. Then I tried to upgrade to Win 10, but the facility remained at 99% for more than 30 hours. I finally got fed up and did a reboot.

  If at this stage I can't update or run diagnostics on Win 7, and I can not upgrade to Win 10.

  I tried to call MS Tech Support and have NECESSARILY STAYED in the queue waiting for a technician for 2.5 hours, up to what the system has hung up on me.

  So I tried to manually install updates through this: https://www.microsoft.com/en-us/download/details.aspx?id=46817 after I click on download, I get redirected to a download confirmation page, but no download comes...

  Any other information, I got 75 GB free of 150 GB.

  Any help would be much appreciated.

  Please provide more information for your issue to be diagnosed.

  Restart your computer and wait 20 minutes for the system to operate before you download information. When the review much, not Event Viewer log files all problems show in the period immediately after the computer has booted.

  Please provide a copy of your system information file. Type the system information in the search box above the Start button and press the ENTER key (alternative is select Start, all programs, accessories, System Tools, system information). Select file, Export and give the file a name noting where it is located. Not to place the cursor in the body of the report before exporting the file. The system creates a new information file system each time system information is available. You must allow a minute or two before the file is completely filled before exporting a copy. Please download the file to your OneDrive, to share with everyone and post a link here. If the report is in one language other than English, please indicate the language.

  Please download and share with everyone a new copy of your log System of your event viewer on your disc one and post a link here. It allows to avoid confusion if you delete all previous copies of the log files of your OneDrive.

  To access the system, log, select Start, Control Panel, administrative tools, Event Viewer, in the list on the left of the window, expand Windows logs and select System. Place the cursor on the system, select the Action in the Menu and record all events like (the evtx default file type) and give a name to the file. Do not offer not filtered files. Do not place the cursor in the list of reports before selecting the Action from the menu. Do not clear the logs so that you have a persistent problem.

  For assistance OneDrive see paragraph 9.3:

  http://www.gerryscomputertips.co.UK/MicrosoftCommunity1.htm

• the new facilities and win7 not frequently updated cannot be updated more

  After 4 full days trying to reinstall win7 and 13 hours of chatting with MS support how took possession of my PC, I can't yet to date a new installation of windows 7 (home premium x 64). It keeps displaying "check updates... »

  I need not tell you that they really tried everything, tools to "fix - it" for re-registration components and cleaning of the update history and files. Boot into safe mode and update Manual of things.

  I have cloned my old win 7 years, use it as a quick backup partition and restart if something happens or if I want to try the software while keeping a full restore of the system or fallback. I have several pc that I cloned and changed the product key back to the original of this pc.

  Now I'm almost sure that there is a problem with the update Ms. I think he will do with some update or version of the file that has changed after that most of us have updated system here. Or the automatic update not to do it in the right order.

  I think that this is because that:

  (1) all pc update continued, old and partitions (cloned) update always very well.

  (2) all partitions at rest, not used for months, don't update any other updates of its own windows update tool WUAPP. EXE and accompanied by programs. Although they did for years until what I waited for several months. In fact before the win10 update became available.

  (3) any new installed win7 versions, home premium and pro will update until again once he has updated its own update tool.

  (4) even a new DVD from an ISO win7 home premium x 64 with SP1 send by Microsoft support does not solve.

  * I saw update "windows update agent" (\windows\system32\wuapp.exe) 7.6.7600.256, 7.6.7600.320, and 7.6.7600.330

  * I've manually updated it to 7.6.7601.18847 (June 2015) here https://support.microsoft.com/en-us/kb/3050265

  * I also tried the ISO http://www.techchore.com/windows-7-iso-free-download/ here

  * This site is mentioning the problem but it does not solve it: http://www.ronnipedersen.com/2015/06/updating-the-windows-update-agent-on-windows-7-clients/

  * And finally, and especially I find something like this on MS-sites but on win-vista problem:

  http://answers.Microsoft.com/en-us/Windows/Forum/windows_vista-update/Windows-Update-Agent-767600256-fails-repeatedly/377e1408-73Cf-4bba-b9c7-40e86f5c4c96

  So far nothing has helped me and I have who I might contact MS longer up just trying to install a departure fees (Home premium or pro x 64) win7 windows update tool until he would say "your windows is up to date" or view more less important updates.

  But I don't have the email from Bill Gates and support MS can not solve or understand that they need to communicate with older MS top.

  They really seem to try to get everyone to install win10. But in my case, it uses for a lot of resources to always be able to play HD movies smoothly :(

  If anyone has an idea more to solve this problem, or contact MS on this topic, please respond.

  Thank you.

  I don't know if it will work for your situation, but I had the same problem with a Win 7 x 74 Home Premium which had been left not updated for months and a fee of Win 7 and Vista install.  Could not find updates, tried all the options in this forum.  Finally, returned to validate Windows online.  It took a few tries, but he finally validated, then inside an hour I got 62 updates waiting to be installed.  So far, they are installed correctly (I'm let fragmentary update).

  The URL is http://windows.microsoft.com/en-us/windows/help/genuine/what-is-validation

  Find the button now validate to half way down.

  I hope this helps you like it did me.

• Adapter WiFi has worked with win7 being automatically updates to adapter Win10 has problems

  I have NOT upgraded to Win10.

  I have a Dell Inspiron 660 Win7 Home Premium Service a running package.

  My wireless adapter is a Dell 1506 wireless 802.11b/g/n (2.4 GHz)
  Qualcomm's Atheros Communications 9.2.0.512 10/23/2012 is the driver and the date of the driver (the last a Dell has on their site).

  Given that I have automatic updates on Windows I have all the latest windows dates.

  Throughout the last two months my adapter is hard to connect to the wireless network after sleeping. Re-booting does not help.

  I have all the power management options that are set for maximum performance and it did not help.

  I also unchecked the box for "Allow the computer to turn off this device to save power" in the adapter properties

  I have updated the driver after downloading from the Dell Web site. No help.

  I deleted the driver then re-installed the driver card without help.

  I received a message to upgrade to Win10 and all my gear is comparable to Win10.

  I've had this computer for two years and the adapter worked without problem until recently.

  I know that the router works fine my Galaxy Tablet works fine right next to the computer.

  Thank you

  try the command prompt type: "" netsh interface ip delete arpcache"" and tab

  and also "«ipconfig \flushdns»»

• Windows7 and Installation/upgrade issues updated Itunes: HKEY errors

  I am running on a new laptop with Windows7 64 - bit OS.  I have already installed Itunes v9.0.3.15 on this computer, but when I open Itunes I got the following error:

  "Warning.  ITunes has not been installed correctly.  If you want iTunes to be able to retrieve information from the internet CD, you should reinstall iTunes. »

  Very well, but every time that I try to uninstall or update Itunes by installing the latest version, I get the following error at halfway through the installation process, on which the installation rolls back immediately and I'm stuck:

  «Could not open key: HKEY_Local_Machine32\software\classes\.pcast.»  Check that you have sufficient access to that key or contact your support team. » 

  I've looked everywhere.  I saw a lot of similar questions, but none exactly the same thing on other forums, and no resolution to other questions helped.

  I don't have this key in my registry editor because it is a 64-bit OS, so there is no "HKEY_Local_Machine32" only "HKEY_Local_Machine."  I have ensured that I do infact have full access to the 'HKEY_Local_Machine\software\classes\.pcast' , but the installation/uninstallation process is looking for the machine32 key.  NOTE: I am trying to install the 64-bit version of Itunes.

  The itunes forums have not proven useful.  If anyone has experience/solved this problem, I would certainly appreciate any suggestions.

  
  

  Hi bburkhart,

  To register permission number, install and run SubInACL to your computer to fix the permission issues.

  You can get the download here:

  SubInACL (SubInACL.exe)

  http://www.Microsoft.com/downloads/details.aspx?FamilyId=e8ba3e56-d8fe-4A91-93Cf-ed6985e3927b&displaylang=en

  This seems to have helped others facing a similar question.

  See this for example:

  iTunes 9 install on Windows 7 64 bit

  http://discussions.Apple.com/thread.jspa?threadID=2153424

  That should do the fix.

  Before you run the SubInACL tool, please make sure that you take a backup of your registry and also create a restore point.

  Here are the links for your reference.

  Back up the registry

  http://Windows.Microsoft.com/en-us/Windows7/back-up-the-registry

  Create a restore point
  http://Windows.Microsoft.com/en-us/Windows7/create-a-restore-point

  Important note: This response contains a reference to third party World Wide Web site. Microsoft provides this information as a convenience to you. Microsoft does not control these sites and no has not tested any software or information found on these sites; Therefore, Microsoft cannot make any approach to quality, security or the ability of a software or information that are there. There are the dangers inherent in the use of any software found on the Internet, and Microsoft cautions you to make sure that you completely understand the risk before retrieving any software from the Internet.

  Kind regards

  Shinmila H - Microsoft Support

  Visit our Microsoft answers feedback Forum and let us know what you think.

• Install Win7 64 bit update on the new build machine

  Initially, I bought a Dell machine with Win XP installed on it, that was obviously an OEM installation. Later, I bought an update to Win7 (boxed version containing two DVD - 1 x 32 bit and 1 x 64-bit).

  I looked at the product key on the System Properties screen and it does not contain the letters OEM, then it means that when I upgraded the operating system he converted it from version OEM to a retail version?

  The reason for my question is that I intend to use this system for donor parts and build a new one, but it will contain a different MB, CPU and RAM, which if I understand correctly this is what the OEM versions are related to. Building the new system, I will seek to install the 64-bit version rather than the 32-bit on the current computer.

  And just to confirm, the old system definetely will be out of use and therefore discarded. I don't mean to reproduce the number of facilities, any transfer from one machine to the other.

  Thanks in advance
  Steve

  Hi Noel, thanks for your response.

  I have to admit your backup response I expected in the case, but...

  Since my original post, I have been informed of "Universal PID Checker", I used to check my current installation (the one I'm looking for scrap) and he informed me that I have a retail version.

  If I will have to just suck it and see?

  With a question mark above it, I do not want to splash out on a new license if it is not needed.

  You will need to invest in a new full version license, because the machine you build will not have an existing previous license eligible to use the upgrade version.

  You can try the following and see if it works:

  How to do a clean install with upgrade disc:

  Boot from the Windows 7 DVD

  Click Install now

  Accept the license agreement

  When the option is displayed to select a type of installation, click (Custom advanced)

  Click on drive Options

  Select the disc/s click on Delete

  Click new

  Click on apply

  Click OK

  Click Format, and then click next to proceed with the installation

  Skip entering your product key Windows 7 and complete the installation.

  When you reach the desktop, click Start, right-click on computer

  Click on properties

  Scroll down to the Windows Activation

  Click the link x days before activation.

  Click on the link that says: "show me other ways to activate.

  Enter the product key

  Click next

  Select the Activation of the phone

  Click Next when you enter your key page

  Select your country

  Click Next, call the number listed

  Be sure to explain your situation to the Appeals Officer.

  Provide the installation generated when ID requested by the call agent

  They give a confirmation ID in return, enter it

  Click next to complete the activation.

  However, the requirements for the media upgrade is that you have an operating system already eligible such as Windows XP or Vista installed to use it. Since the Windows 7 end user license agreement.

  15 UPDATES. To use upgrade software, you must first be licensed for the software that is eligible for the upgrade. After the upgrade, this agreement takes the place of the agreement for the software that you upgraded. After upgrade, you can no longer use the software that you upgraded.

  So, if you are always denied, you will just have to reinstall Windows XP or Vista and let it do the verification of eligibility.

  or

  How to activate Windows 7 manually (activate by phone)
   
  1) click Start and in the search for box type: slui.exe 4
   
  (2) press the ENTER"" key.
   
  (3) select your "country" in the list.
   
  (4) choose the option "activate phone".
   
  (5) stay on the phone (do not select/press all options) and wait for a person to help you with the activation.
   
  (6) explain your problem clearly to the support person.
   
  http://support.Microsoft.com/kb/950929/en-us

• E.M.P. 11122 to 11123 issue update: links in the workspace do not work

  Hi John & all,

  We have an existing EMP 11.1.2.2 installed on the platforms Linux and windows. It is a planning & field HFR. Except FDM, server size, HFR other services do not include Linux server.

  Linux - ServerA (physical server). However, we access all URLS using a DNS alias different ServerC that points to the server has

  Windows - Server b

  Monitoring http://docs.oracle.com/cd/E40248_01/epm.1112/epm_install/frameset.htm?ch10s05.html for the update.

  Installation and configuration went well. We use an integrated http server. In the last step of the web server configuration

  
  

  -Do you have the web server configured with Embedded (port 28080). He managed.

  -Then WL console has changed the address of listening to ServerC for all managed servers including the administration server

  -Then using configtool ran step "configure logical web addresses.

  - Chosen together here logical addresses for services individually and then for all the services running on the server

  (space of work/shared services/aif/aps/datasync/planning/eas/calc)

  implement ServerC:28080 (DNS alias)
  

  
  

  And for the services that run on Windows BPMA & ServerB:80 FDM

  This went by Wells.

  
  

  All services started. All services of WL came without problems. Can connect you to the workspace and shared services. I can see changes in the appearance and can see all the new EPM 11123 icons under "Navigate-> administer". But when I click on one of the links (Dimension lib, lib, planning, data application etc.) all fail with a similar error

  "A not found no error occurred during communication with the server. See the form it says for example...

  
  

  "

  URI: http://ServerC:28080/AWB/conf/AwbConfig.XML ' -status 404 not found "

  For each application, the error is similar http://ServerC:28080 / < frame > - status 404 not found

  Of course the logical address set to 28080 does not work. But all the below URL work very well

  http://serverC:9365/aps/APS

  http://serverC:8300/HyperionPlanning/conf/HspJSConfig.XML

  http://serverC:19091/AWB/conf/AwbConfig.XML

  http://serverC:8500/calcmgr/conf/CalcMgrConfig.XML

  http://serverC:19091/AWB/conf/AwbConfig.XML

  http://serverC:28080 / workspace

  To resolve this problem, tried to reconfigure the logical address to all individual applications, this time of good respective ports where they are listening instead of 28080. I can see only workspace works at 28080.

  I see this new configuration, update the registry. Bounced A including the administration server. But the problem persists. For each link, he is always looking for old logic web URL "http:serverc:28080/ < frame > rather than seek new logical addresses configured.

  Please suggest how to solve the problem.

  Regards

  VARA

  Raphael
  

  
  

  Issue solved after installation of SST instead of using the built-in http server. In OHA, he gives the flexibility to point to the DNS alias.

• Satellite X 205-s9800 - Win7 driver issues

  Hello

  I recently installed Windows 7 on my Satellite x 205 and impossible to install a video driver for my life.

  I tried the latest driver from the Web site of nvidia, tried latest from Toshiba Web site the driver and am not of ideas.
  Everytime I go to install a driver, the laptop will be bluescreen next time it starts. So I have to uninstall the driver and restart or do a system restore so I can't even get into standard windows to get it stable again.

  Thanks for the help in advance.

  It is really strange that you can not install driver Toshiba. All drivers available are put to the test and everything should work fine.

  Have you installed Win7 and drivers according to order normal facilities?
  OPERATING SYSTEM
  Driver Chipset
  Display driver
  Audio driver
  Driver modem and so on.

• No real OS MS after Win7 December 2014 update applied

  Product name: HP Pavilion dv6 Notebook PC. Product number: A3L69EA #ABU.

  Windows 7 Home Premium 64-bit Service Pack 1.

  Applied Win 7 dec2014 update this morning.

  Since doing so, the 'Windows Activation Technologies' window popped up on turning on the PC.

  Have never had a problem with it before.

  Why is he past?

  How should I do?

  Any help welcome.

  Thank you in anticipation

  Ian

  

  Dear all.

  Sorry for the delay in repying, crisis of the family.

  Firstly, I did a restore of the system as suggested by Ms. attempt.

  It made no difference.

  Then I tried to validate the installation and this just informed me that I had to buy a valid serial No.

  As the original is / was genuine I didn't want to pay another £70.

  After a bit of investigating on the web, I came across notes referring to the update of MS KB3004394 as being suspicious.

  "It looked like that' camulder ' was found.

  Further investigation turned up that MS has had a problem for Windows 7 SP1 and had published another patch.

  KB3024777 to correct the problems.

  Apply this patch but yhe problem persists.

  Found that I had to reapply the process of validifcation of the new system and after receiving a window indicating that the system was valid had no more problems.

  NB. not had no problem on the desktop or laptop, only had the problem on laptop.

  Lets hope it's the end of it.

  Thanks to those who responded to me so quickly.

  Concerning

  Ian

• Duty cycle issues update

  I use a counter that is generated by a PCI-6110 to switch a relay to solid state that enables or disables a heating unit. I update the duty cycle based on the output of a PID controller (0 - 100 output of PID VI gets scaled to a cycle of 0.001 to 0.99). The question is after two iterations, the written property node is no longer the output of PID on the scale to the task and it seems 0 as the default value.

  Many meter generation examples use event structures to detect a change in the duty cycle and pass that to the task. But structures event detect changes in values if the value is written in a local variable and not typed in a CNC? I feel that the answer should be 'Yes'... but in the case I tested it seems to be 'no '.

  Don't adjust the precision of a digital indicator / control limits the number of significant digits does a calculation? I would limit my duty cycle to 2 decimal places - i.e. 0.3342 and 0,3313 the two would be 0.33. In this way the cycle is not unnecessarily updated.

  The temperature is read by a PCI-4351... which may arise under? blocks if you have not installed the drivers.

  arcranda wrote:

  Many meter generation examples use event structures to detect a change in the duty cycle and pass that to the task. But structures event detect changes in values if the value is written in a local variable and not typed in a digital control?.

  To have a triggered event when a value is changed programmatically, create a Value property node (signaling) and the new value of wire to it.  This will trigger a change of value for this variable event.

  arcranda wrote:

  Don't adjust the precision of a digital indicator / control limits the number of significant digits does a calculation? I would limit my duty cycle to 2 decimal places - i.e. 0.3342 and 0,3313 the two would be 0.33. In this way the cycle is not unnecessarily updated.

  .

  Changing the properties of display to show only 2 decimal places does not change the numeric value stored in memory.  You would have to round up the digital to two decimal places.  To do this is to multiply the number by 100, change of an integer (this will lose the remaining decimals), then divide the result by 100 to get again the two decimal places.  When changing to an integer, you will need to round to the nearest integer to make 0.3299 0.33.

• XP - Issues updates

  I have problems with Windows, it seems... I looked in the file that shows my program files and one of them says 'Windows' - I'm supposed to get my programs to automatically... Well well... my problem with my personal files early... I get a window telling me that my Windows 2000 is more... services I need to update... I have windows XP not 2000 more (for a while)-, so I check in my Windows Explorer and see a file named "Windows" and all the files except the premiera read "$NtServicePackUninstall + numbers/ltrs" or "NtUninstallKBand band of numbers" - How are all these files "UNINSTALL"? I don't understand... I am not very informed on computers, my gray matter is old, approaching the 80's!  Can someone help me and tell me what is the problem and how can I remedy this?  If it can be corrected... I do not uninstall anything...

  Thank you in advance.

  Gino

  Remove the old Windows updates

  Folders that have uninstall as part of the name (for example $NtUninstallKB282010$ who reside in C:\windows (hidden files) are window Hot difficulty updating folders/files) can be removed safely (providing ever, you wish to uninstall the updates). I recommend you leave these records for a period of at least one month to make sure that the update works correctly.

  These updates can be removed individually or together. To learn more about the update/s go on:
  http://support.Microsoft.com/kb/xxxxxx
  NB: XXXXXX = the actual number, not to mention the "Q" or "Ko."

  Once you have removed the uninstall folders/files, then go to control panel, add/remove programs. Select the title of the corresponding Windows fix on the folder/file of the patch you just deleted, and select Delete. You will get a Windows error. This is because you deleted the uninstall folder/files. Simply choose OK and the entry will be removed from the Add/Remove Programs list.

  Don't NOT delete the folder $ $hf_mig

  Cleaning after installation of SP2
  http://aumha.org/win5/a/sp2faq.php#after

  and/or

  XP SP3: Post Installation Cleanup
  http://aumha.NET/viewtopic.php?f=62&t=33827

  Please note this is only for Windows XP and is not on Vista or Windows 7

  Source: http://taurarian.mvps.org/WU_XP/removing_old_windows_updates.htm

  See also:

  http://social.answers.Microsoft.com/forums/en-us/vistawu/thread/1467f44b-ee27-4F7D-98d7-f1c4b35b3395

  Windows Update forum is one of the three forums that doesn't have different forums for different versions of Windows (Internet Explorer and the game are the others).  With this in mind, we ask that you postat LEAST the following information.  If you don't know how to find some of the information and then post what you can and let us know that you need help to find information.

  Minimum information to validate:
  Version of Windows and Service pack level. (Windows XP Home Edition, SP3; Vista Home Premium, SP1; Windows 7 Ultimate, etc...)
  Post also if you use 32-bit or the 64 bit version of Windows.

  Update the number of the last update installed before any problem.  If you do not know the number of update, then give the date that the update has been installed.  The number of updates update failed.

  Error code updates failed or if you think an update caused a blue screen, give the blue screen error codes.

  Other information to validate:
  Measures already taken to correct the problem and the results of the measures.

  If the question is never happened before with other updates.

  A few other useful parts are:
  What program antivirus you use, if it is up-to-date, and there has never been any other installed antivirus program.
  If your version of Windows has been upgraded from a previous version or if it came with (or clean installed with) the version you are currently using.

  TaurArian [MVP] 2005-2011 - Update Services

• Issue update

  I will praise the goal of 5.6 L 400 and the Extender 1.4 TV in the near future for fun with wildlife photography. My camera body is the T3i. With the Extender, my maximum aperture is f8. Does anyone know if the T3i is able to autofocus at f8 with the central point? I couldn't find the answer in the manual. My hunch is that only pro level agencies can autofocus at f8.

  I will praise the gear, so be it, but it would be sweet if I could have some help autofocus with the extende.

  Forum thanks!

  There are only two Canon DSLR bodies that support auto focus at f/8... the X 1 D and 5 D III.

  The camera does not focus at f/8, because he can't concentrate with reliability at f/8.  It is extremely difficult for DSLRs to concentrate at high focal rates (it is even difficult for a manual update photograph of a 35 mm film at f/8... the Prism does not light wide enough angles to work effectively.)

  You can 'live view' If you have a lot of light because that uses contrast detect focus instead of phase detection - so there is no priority of Prism.  But of course it's also not as fast.

  On your side, however, I think the 400 f/5.6 L has a focus-memory button (made my 300 mm f/2.8 L).  If you find a place where you expect wildlife to appear (for example a bird back to his nest for example) you can pre-focus lens on this site and click on update-memory button.  When the animal DOES in fact not return and it's time to take the picture, you can just hit the focus of recall and the snapshot - confident that the lens will make the focus to the exact position you previously worn earlier.