1.4 Extender to use with 70 d and EF 70-200 mm f/4 IS. No compatibility issues?

I intend to get the 1.4 Extender to use with my EOS 70 d and the EF 70-200mm f/4 IS.  Are there problems of compatibility with this combination?

ebiggs1 wrote:

"... they will work perfectly."

Perfectly may be a stretch but, Yes, they will work as well as can the combo.  Whenever you add something like a TV exrender you have to give up something.  In photography, you give to get.  There is no free lunch. Fortunately you start with a pretty good lens and can afford to lose one f-stop and some IQ.

Let me ask a slightly different question. Assume that you already have (as many of us do) IS a 70-200mm f/2.8 L II. Suppose you add the TV-extender 1.4. The combination would result, in my view, in a 98-280mm f/4, a potentially useful lens that does not appear in the Canon range. So, given the cost of the TE and the main quality of the image of the combination, buys the TE a smart move?

Notice that buy her YOU does not compromise the 70-200 somehow, since it is always good that he has never been without the SOW. The combination, for the price of the song, stands or falls on its own.

Tags: Canon Camera

Similar Questions

  • I can install Illustrator CC with Photoshop CS6 and Indesign CS5.5 or can I have some compatibility issues? I use Windows 7. Thank you...

    I can install Illustrator CC with Photoshop CS6 and Indesign CS5.5 or can I have some compatibility issues? I use Windows 7. Thank you...

    Generally, it should work, but of course there may be problems of occasional compatibility through different programs and their different versions.

    Mylenium

  • Cannot download sony HDCam to use with movie maker and make a simple Assembly.

    Cannot download sony HDCam to use with movie maker and make a simple Assembly. can not download the olympus still digital cam video to use in a simple Assembly.

    Hello

    1. are you not able to import files into Windows Movie Maker, or transfer the files on the computer from the devices themselves?
    2. What is the format of the files you want to import into Windows Movie Maker?

    Check if the help of this article.

    Problems with importing files into Windows Movie Maker.
    http://Windows.Microsoft.com/en-us/Windows-Vista/problems-importing-files-into-Windows-Movie-Maker

  • Macbook Air using with mouse, keyboard, and external display?

    I want to put in place a more ergonomic work station. Can anyone recommend how I can configure my Macbook Air 13 "to use at home with an external monitor as well as an external keyboard and mouse? What is the easiest and most cost-effective way? Is a necessary dock if I buy a bluetooth mouse and keyboard, then simply plug the monitor each time? Could I use this set up with my macbook screen closed? I bring my Macbook to every day, so it must be easily plugged/unplugged. Thank you.

    A dock is not necessary. If you use a USB keyboard and mouse or a BT, it is up to you. I use a BT Magic Mouse and Apple keyboard in my office. That leaves just two things to plug: monitor and the power cord. When you use an external monitor as primary monitor you can close the lid of the computer and it will not go to sleep.

  • 2808 LAG for use with VMware ESXi and Linux collage

    I posted the month last about setting up my work with groups LAG http://en.community.dell.com/support-forums/network-switches/f/866/t/19537080.aspx servers (I'll effectively implementing implement this Saturday)

    I decided to buy a 2808 for my ESXi server get more aggregated connections to my staff iSCSI Linux server but now I'm worried I might have made a mistake to buy the 2808.

    After looking in the manual before I realized I could have been mistakenly assuming that the 2808 had STP and LACP, as I can't find LACP anywhere in the PDF file. I guess that the configuration of my Linux machine for 802.3ad is out (a hope to make mode 4), so now for the configuration of my house, I wonder (* 1 *) that I have to configure my VMware NIC team like and what mode of binding should I use on my Linux host? As for the section at the top (my working configuration) (* 2 *) I don't know what to do about the road other than the leave as 'route based on originating virtual port ID "? (This is how our other data centers are configured, but I'm waiting for my admin network as agglomerates ESXi hosts are configured with the channels of port on our cisco switches)

    For the House, I want to try to increase the bandwidth by using three NICs in each server, I was hoping that it works:
    VMware: Route of IP hash function?
    w/Linux: balance-alb?

    -VMware:
    Before you begin:

    -Linux:
    * Descriptions of bonding modes *.
    + Mode 0 balance-rr: Round-robin policy: transmit packets in the sequential order of the first available through the last high school. This mode provides load balancing and fault tolerance.

    + 1 active-backup mode: Active-backup policy: only one slave in the link is active. A different slave becomes active if and only if, the active slave fails. MAC address of the binding is visible from the outside on a single port (NIC) to avoid confusion between the switch. This mode provides fault tolerance. The first option affects the behavior of this mode.

    + 2 balance-xor mode: XOR policy: transmit based [(adresse MAC XOR avec destination MAC traiterait de source) modulo County slave]. This selects the slave even for each destination MAC address. This mode provides load balancing and fault tolerance.

    + 3 broadcast mode: broadcasting policy: transmits everything on all slave interfaces. This mode provides fault tolerance.

    + Mode 4 802.3ad: IEEE 802.3ad dynamic aggregation of links. Creates aggregation groups who share the same speed and duplex settings. Use all the slaves in the active aggregator according to the 802.3ad specification.

    -Prerequisite:
    -1.Ethtool support in the base drivers to retrieve the speed and duplex of each slave.
    -Switch 2.A which takes care of IEEE 802.3ad dynamic aggregation of links. Most of the switches will require some type of configuration to activate 802.3ad mode.

    + Mode 5 balance-tlb: Adaptive load balancing transmission: Channel link that doesn't require any special switch support. Outgoing traffic is distributed according to the intensity of the current (relative speed) on each slave. Inbound traffic is received by the current slave. If the receiving slave fails, another slave takes over the MAC address of the failed receiving slave.

    -Prerequisite:
    -1.Ethtool support in the base drivers to retrieve the speed of each slave.

    + 6 balance-alb mode: Adaptive load balancing: includes balance-tlb plus receive balancing (rlb) for IPV4 traffic and doesn't require any special switch support. Receive load balancing is achieved by ARP negotiation. Link driver intercepts the ARP replies sent by the local system on their way and replaces the hardware address of source with the unique hardware address of one of the slaves in the bond as different counterparts use different physical addresses for the server.

    The topic dell nearest you, I have found a useful was: http://en.community.dell.com/techcenter/networking/f/4454/t/19415629.aspx

    my previous post was more concerned with VLAN tagging and spanning tree issues, but now I see I should have feared groups LAG it as well.

    Any help would be appreciated, thanks in advance all :)

    -

    PS. http://i.dell.com/sites/doccontent/shared-content/data-sheets/en/Documents/dell-powerconnect-2800-series-spec_sheet.pdf said that the 2800 series supports LACP, so if I'm worried about anything on my iSCSI side slap me please in the face, but I guess even in this case, I'm still not sure how to configure the ESXi host because it does not support LACP without vSphere and my original configuration is a free version , so I have no web vSphere management needed to make the LACP allow the change.

    Not sure if it is of no use: example configuration of EtherChannel / switches control protocol LACP (Link Aggregation) with ESXi/ESX and Cisco/HP (1004048), but that's where I was to base the choice on IP hash from.

    It must have the support of layer 3 to achieve IP hash, IP addressing is a 3-layer technology, so a 6200 series or higher or the soon to be released N3000 series.

  • Best to use with Windows 7 and AT & T DSL modem

    I have a Windows 7 computer and am also having implemented for AT & T internet DSL soon. I want to have a combined modem/router and I'm having a hard time finding anything that is compatible with Windows 7. Any suggestions?

    I wish that the modem/router works really well, thank you.

    I have an AT & T provided Motorola 2210 modem for a DSL connection, I at a different location. In this case, I do the configuration of the modem to the PPPoE connection and can connect to a computer using a wired Ethernet connection. The Motorola 2210 acts as a router and recovering a DHCP address. That works very well for a computer.

    https://SkyDrive.live.com/?CID=25ab668da65c8fbe&ID=25AB668DA65C8FBE%21118#CID=25AB668DA65C8FBE&ID=25AB668DA65C8FBE%21308

    If you use a router make sure you put the DSL modem into a bridge or go through fashion and have the router handle the PPPoE connection. Here is how I have the Motorola 2210 configured in this scenario.

    https://SkyDrive.live.com/?CID=25ab668da65c8fbe&ID=25AB668DA65C8FBE%21118#CID=25AB668DA65C8FBE&ID=25AB668DA65C8FBE%21278

    For routers that are compatible with Windows 7, see this list of Microsoft, although Jack pointed out, any router should work.

    http://www.Microsoft.com/Windows/compatibility/Windows-7/en-us/Browse.aspx?type=hardware&category=networking&subcategory=wireless%20Routers

    Personally I use an older ZyXEL NBG334W router with two machines Wireless Windows 7, IE. a desktop and a laptop, plus a wireless HP AiO printer and an iPod Touch.

  • How to extend a drive with createType = "vmfs" and ddb.adapterType = "buslogic".

    Hi VMware experts.

    You need help to solve a problem.

    I sda.vmdk the file next to the vmdk descriptor and the sda flat, the hard file

    Disk DescriptorFile

    version = 1

    Encoding = 'UTF-8 '.

    CID = 1eed866e

    parentCID = ffffffff

    isNativeSnapshot = 'no '.

    createType = "vmfs".

    # Description of the measure

    RW 2097152 VMFS "sda - flat hard."

    # The database disk

    #DDB

    ddb.adapterType = "buslogic".

    DDB. Geometry.sectors = "32".

    DDB. Geometry.Heads = "128".

    DDB. Geometry.Cylinders = '512 '.

    DDB. UUID = '60 00 C2 9 d 4 b 04 74 e0 - cd bf being 7th e3 7 d f1 c5'

    ddb.longContentID = "4270b56ea10a34306eb588651eed866e".

    ddb.virtualHWVersion = '8 '.

    The sda-apartment has two partitions linux below

    Sda - flat hard disk: 0 MB, 0 bytes

    Heads of 34, 61 sectors/track, 0 cylinders

    Units = cylinders of 2074 * 512 = 1061888 bytes

    Device boot start end blocks Id system

    SDA - flat .vmdk1 * 3 1011 1046333 83 Linux

    SDA - flat .vmdk4 1 2 2043 83 Linux

    Partition table entries are not in the order of disc

    Can you please how can I resize this disc. Also, I'm confused about the disparity between the hard disk geometry information in the descriptor vmdk file and the output of the fdisk.

    Concerns

    Ivan

    I always used to gparted to expand the vdisk, I don't think that you can recreate the partition as it already of the filesystems on it.  You will have to destroy the current partition and recreate if necessary.  Be very careful because this could result in loss of data.

    Is there a reason you want to recreate rather than simply extend your existing partition?

  • I just bought a dell used with windows xp and do not have the password so I can't connect user on window can someone help me?

    I tried safe mode and multiple passwords and nothing seems to work and every time I ask that's what I like to try or execute something, but I can't run something if I can't get to this window

    JD'sHomePC,.

    If the bios password, you will need to contact the person that you bought it from. They should be able to provide the password.

    If this is not the case, they will have to transfer ownership to you. Dell - transfers of ownership or the transfer of international property form

    After you have the property, then you need to contact Dell for the password.

    Rick

  • How to install the printer with the laptop. Printer was used with another computer.

    I wanted to use a printer with my laptop lexmark. The printer was used with another computer and it worked fine, but when I tried to use it with the laptop, I was not able find the installation disk and tried to install without it. The laptop produces a message indicating he could find the internet facility info if I accepted this. He had apparently fulfilled this function, and I tried to print a document. The document has been printed, but the result was so low, that it was not readable. I then found the installation disk and tried to restart but was confused by the messages and options. I don't have a printer that prints. Help.

    I wanted to use a printer with my laptop lexmark. The printer was used with another computer and it worked fine, but when I tried to use it with the laptop, I was not able find the installation disk and tried to install without it. The laptop produces a message indicating he could find the internet facility info if I accepted this. He had apparently fulfilled this function, and I tried to print a document. The document has been printed, but the result was so low, that it was not readable. I then found the installation disk and tried to restart but was confused by the messages and options. I don't have a printer that prints. Help.

    Unplug the printer from the laptop.  In Vista or Win 7, click Orb (Start), settings, Control Panel, printers. When the Lexmark printer is found, right-click on it and then click on remove.
     
    Equip your drive and install the drivers and programs on the disk, then when told the printer.  You should have a printer now works.
  • Tables created in a stored procedure cannot be used with dynamic SQL? The impact?

    There is a thread on the forum which explains how to create tables within a stored procedure (How to create a table in a stored procedure , however, it does create a table as such, but not how to use it (insert, select, update, etc.) the table in the stored procedure.) Looking around and in the light of the tests, it seems that you need to use dynamic SQL statements to execute ddl in a stored procedure in Oracle DB. In addition, it also seems that you cannot use dynamic SQL statements for reuse (insert, select, update, etc.) the table that was created in the stored procedure? Is this really the case?

    If this is the case, I am afraid that if tables cannot be 'created and used"in a stored procedure using the dynamic SQL, as is the case with most of the servers of DB dynamic SQL is not a part of the implementation plan and, therefore, is quite expensive (slow). This is the case with Oracle, and if yes what is the performance impact? (Apparently, with Informix, yield loss is about 3 - 4 times, MS SQL - 4 - 5 times and so on).

    In summary, tables created within a stored procedure cannot be 'used' with dynamic SQL, and if so, what is the impact of performance as such?

    Thank you and best regards,
    Amedeo.

    Published by: AGF on March 17, 2009 10:51

    AGF says:
    Hi, Frank.

    Thank you for your response. I understand that the dynamic SQL is required in this context.

    Unfortunately, I am yet to discover "that seeks to" using temporary tables inside stored procedures. I'm helping a migration from MySQL to Oracle DB, and this was one of the dilemmas encountered. I'll post what is the attempt, when more.

    In Oracle, we use [global temporary Tables | http://www.psoug.org/reference/OLD/gtt.html?PHPSESSID=67b3adaeaf970906c5e037b23ed380c2] aka TWG these tables need only be created once everything like a normal table, but they act differently when they are used. The data inserted in TWG will be visible at the session that inserted data, allowing you to use the table for their own temporary needs while not collide with them of all sessions. The data of the TWG will be automatically deleted (if not deleted programmatically) when a) a commit is issued or b) the session ends according to the parameter that is used during the creation of the TWG. There is no real need in Oracle to create tables dynamically in code.

    I noticed that many people say that the "Creation of the tables within a stored procedure" is not a good idea, but nobody seems necessarily explain why? Think you could elaborate a little bit? Would be appreciated.

    The main reason is that when you come to compile PL/SQL code on the database, all explicit references to tables in the code must correspond to an existing table, otherwise a djab error will occur. This is necessary so that Oracle can validate the columns that are referenced, the data types of those columns etc.. These compilation controls are an important element to ensure that the compiled code is as error free as possible (there is no accounting for the logic of programmers though ;)).

    If you start to create tables dynamically in your PL/SQL code, so any time you want to reference this table you must ensure that you write your SQL queries dynamically too. Once you start doing this, then Oracle will not be able to validate your SQL syntax, check the types of data or SQL logic. This makes your code more difficult to write and harder to debug, because inevitably it contains errors. It also means that for example if you want to write a simple query to get that one out in a variable value (which would take a single line of SQL with static tables), you end up writing a dynamic slider all for her. Very heavy and very messy. You also get the situation in which, if you create tables dynamically in the code, you are also likely to drop tables dynamically in code. If it is a fixed table name, then in an environment multi-user, you get in a mess well when different user sessions are trying to determine if the table exists already or is the last one to use so they can drop etc. What headache! If you create tables with table names, then variable Dynamics not only make you a lot end up creating (and falling) of objects on the database, which can cause an overload on the update of the data dictionary, but how can ensure you that you clean the tables, if your code has an exception any. Indeed, you'll find yourself with redundant tables lying around on your database, may contain sensitive data that should be removed.

    With the TWG, you have none of these issues.

    Also, what is the impact on the performance of the dynamic SQL statements in Oracle? I read some contrasting opinions, some indicating that it is not a lot of difference between static SQL and SQL dynamic in more recent versions of Oracle DB (Re: why dynamic sql is slower than static sql is this true?)

    When the query runs on the database, there will be no difference in performance because it is just a request for enforcement in the SQL engine. Performance problems may occur if your dynamic query is not binding variable in the query correctly (because this would cause difficult analysis of the query rather than sweet), and also the extra time, to dynamically write the query running.

    Another risk of dynamic query is SQL injection which may result in a security risk on the database.

    Good programming will have little need for the tables of dynamically created dynamically or SQL.

  • I'm unable to access webmail on TalkTalk (formerly Tiscali) using Firefox 5.0 and TalkTalk tell me there is a compatibility issue?

    I have not had any problems with my previous version of Firefox and I can access my Tiscali/TalkTalk webmail using the latest IE browser. I am connect but cannot access the contents of the mailbox. I asked TalkTalk on the problem they have stated that "If you are unable to access the mailbox using Firefox version 5, so I want to inform you that there is compatibility issue with Firefox version 5 and webmail of Talk Talk, thanks to which you found the error above. Alternatively, you can try to uninstall the latest version of firefox, and then reinstall the earlier version to settle the case. "Can I assume that these difficulties will be resolved between you? I would prefer to use Firefox and do not wish to go back to IE.

    Apparently, TalkTalk mail will work with Firefox 4 and 5 of Firefox If you set the browser are to TalkTalk mail saying that you always use version 3.6.

    You can find instructions for this in a post on the forums of TalkTalk: Firefox 4 & TalkTalk webmail - Forums.

    Note: when you open about: config the first time, it will display a warning message that you have to be careful with changes that you make. It's certainly good to keep in mind.

    It work?

  • Windows 8 is blocked at the (screen with space needle and mountains) Welcome screen after update.

    I have installed the latest updates and I'm stuck on the Welcome screen.  Network connection indicator has a red x through it and none of my usb devices work.  When I unplug all devices and connect just the keyboard its has lights (CapsLock Maj and stop scroll) but when I click on them nothing happens (keyboard does not work).  The keyboard and mouse work in bios.

    I'm not sure what to do, and I can't understand how to start in safe mode as I used with windows 7 and before.
    Any help would be appreciated.  Thank you.

    Hello

    Once the computer is started, click with the right button on the icon in the bottom left of the Windows desktop and select RUN...

    Type msconfig and click OK...

    In msconfig, click on the STARTUP tab and check the box START SECURE and restart your computer... If using a fingerprint reader do not use this function unless you know the alternate password. Otherwise you download locked...

    You can also get the execution by opening the Task Manager...

    Click on FILE and then 'run the new task '.

  • Problem with Captivate 8 and SumTotal learning LMS Maestro-

    I get white screen when lance course published under the title of SCORM 2004 using Captivate 8.  All the publication settings are identical to those used with Captivate 7 and all classes of properties and parameters are the same in the LMS as course published using Captivate 7. At the launch of course, instead of the opening of the route screen, a white frame appears showing the playback bar course and LMS navigation bar. Logon screen does not appear until the user clicks on the button play on the PlayBar. No idea why this is happening?  Here is a screenshot of the white frame.

    BlankScreenCap8.png

    Ron,

    Thanks for the help.  I found a solution for the problem here: HTML5 projects Captivate freezing in Google Chrome, c. 36 + |

    Because it worked, obviously, the Chrome issue 36 comes break HTML5 output.  I hope that the patch solves everything.

  • get this error, "one of the software components required,"ms_lbfo"is missing in the system. Please make sure that you use a Server SKU, and no OS components have been uninstalled

    Original title: Windows Server NIC 2016

    Im trying to set up the consolidation of network cards on Technical preview of windows server 2016 3, build 10537 and I get this error message, "one of the software components required,"ms_lbfo"is missing in the system. Please make sure that you use a Server SKU, and no OS components have been uninstalled. »

    This issue is beyond the scope of this site (for consumers) and to be sure, you get the best (and fastest) reply, we have to ask either on Technet (for IT Pro) or MSDN (for developers)
    *
  • I can not find, select, install the appropriate SR2 extended RAW for Phtoshop CS6 file to use with my Canon 5DSR camera... Please help

    I can not find, select, install the appropriate SR2 extended RAW for Phtoshop CS6 file to use with my Canon 5DSR camera... Please help

    Hi drdrum,

    Greetings!

    Update the software of camera raw as Canon 5DSR is supported camera raw version 9.0 and above.

    Here is the download link: https://helpx.adobe.com/x-productkb/multi/update-error-u43m1d204.html

    Also, here is the list that displays the camera with respective camera raw support:https://helpx.adobe.com/camera-raw/kb/camera-raw-plug-supported-cameras.html

    Concerning

    Jitendra

Maybe you are looking for