To shorten the field

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• astrophotography. I want to know that the focal length is to determine the field of vision?

  I'm interested in astrophotography.  I want to buy a camera for my telescope.  You can find the field of vision, if you know the focal length of the telescope.  But what is the focal length of a camera with a fixed lens?  If I have a 50 mm lens, is the focal distance 50 mm? or do you need to know the distance from the camera of body image sensor and add it to the lens focal length?  Thanks in advance...

  If you have a 50mm... lens focal length.  The focal length is the distance between the end of the lens and the image plane.  If you look at a digital SLR, there is a symbol on the body (usually the top of the body and often near the viewfinder) that looks like a small circle with a line through IT... which line marks the position of the focal plane inside the camera.

  There is a friction more... If you have a 'simple' goal, it would be the focal length.  Many modern lenses are technically able to be physically shorter than the focal length they provide... because of the types of 'glass' and the configuration of optics.  So the focal length is based on how long a simple goal should be to provide that same value (even if you were to physically measure it and not get this value.)

  All telescopes list their focal lengths, but also among the specs of the telescope focal reports.  I have a refractor of 540mm with an opening of 101mm... so it is 'roughly' f/5.4 scope.  I have also a larger 14 "SCT with a focal length of 3556mm and it is a stretch of f/10.

  The distance "flange to focal plane" on a camera Canon is 44 mm... in the grand scheme of things with a telescope, it will not substantially change the focal length of the image.

  Depending on the scope, you can use either a "focal reducer" or a "barlow" to decrease or increase the focal length.

  One last thing... many designs of 'Newtonian' type telescope is problematic for astrophotography.  This is because most of the glasses and catadioptric telescopes are designed with the intention that a person would use a diagonal of 90º with their eyepiece.  "The diagonal has a tendency to add"roughly"2" to the overal of the focal path length.  If you are using a camera you take this "diagonal" and simply attach the camera for a shot "straight through".  So even if you have lost the focal length 2 ", created by the diagonal... the camera adds"roughly"the same amount of back in.

  BUT... When you use a Newtonian telescope of reflector design, the eyepiece is near the front and there is no "diagonal" in use.  This means that when you add a camera, focal length gets longer, it would be with an eyepiece.    Pull door-eyepiece tube has some development trips... but because the camera is the longest focal length, you end up having to run the focuser completely 'in' to shorten the length of the focal length to put the image in focus.  And that's where you are having problems... very often on a Newtonian telescope, you exceed the limit of traction of focuser (you can't shorten the development any more that you have) and the image was just starting to focus... but it's still pretty fuzzy.

  This problem not to poison all the reflectors of knighting... some can accommodate cameras and still come to focus.  You really check the specific scope.

• I did the most recent iOS 10 updated, just heard on the news that Yahoo has been hacked.  I changed my Yahoo email but can't find the field to change on my devices.  It is simply not there, what is happening?

  I did the most recent iOS 10 updated, just heard on the news that Yahoo has been hacked.  I changed my password to Yahoo mail but can't find the field to change the password on my devices.  It is simply not there, what is happening?

  For some reason any change automatically if change you it online. Today, I changed my password through my office and I went to change the mail and she had already changed.

  You can try to delete your account your unit off and add it again.

• Can I use the original iPad Air 2 charger to charge my iPhone 6 Plus? It shortens the life of the battery of the phone?

  Can I use the original iPad Air 2 charger to charge my iPhone 6 Plus? It shortens the life of the battery of the phone?

  Yes, you can. No, it won't. Apple sells this as compatible with the iPad and iPhone adapter.

  And the phone does a little faster than with the phone adapter.

• Cannot delete the fields of the Web site

  When I opened the site 'http://www.indeed.ca/lan-jobs-in-brampton' fields 'what' and 'where' are filled automatically with "lan" and "brampton" see attached.

  I've removed the cookies for the site, set the privacy settings of Firefox 41.02 to keep cookies until firefox is closed, closed Firefox and reopened as well run in browser privacy mode. In all cases, the fields are automatically filled. How can I find and delete this stored information?

  I found the answer. The information is stored in the bookmark

  http://www.indeed.ca/jobs?q=LAN & l = Brampton

• I send emails via internet aol and gmail account my photo is in the field

  When I send AOL emails from my Firefox browser to certain addresses (gmail, msn.com) a the of profile photo and the name of a gmail account that is tied to my own this gmail account in the field.

  Modified by removing the AOL to gmail e-mail address.

• How to disable automatic paste in the field "search page"?

  Hello.

  When opening / to the point the 'search field in the page "my Clipboard (Cmd + F), is automatically pasted into the field. Is it possible to get rid of it? Subject: config? Plugin? Voodoo?
  I don't know which version of Firefox introduced this behavior but today I can't stand it anymore, I hate this stuff.

  Thank you.

  Try this extension:

  • FindBar Tweak: https://addons.mozilla.org/firefox/addon/findbar-tweak/

  Other tweaks:
  - Set whether opening the findbar fills it with the selected text or not
  - Selecting text on a webpage immediately copies the selected text to the findbar and searches for it
  -- When used together with "Highlight all by default", it will highlight all matches of the selected text, even if the findbar is closed.
  -- Show the QuickFind bar (it will open in normal mode if "Always use normal Findbar" is enabled) when using selected text.

• A sender is identified in the field "from".

  Thunderbird has recently changed the information contained in the field "From" for one of my senders. Not only is false, that it is information for one of my other shippers, so that e-mail from two of them seem to come from the same source. Where can I restore, or control the parameters of this?

  If you don't think that the display is the contents of a folder. I bet at the tab on the top it says Inbox. Looks like you have mastered, so good luck.

• Thunderbird will not add addresses for the field in my emails

  When I double click on a name in the sidebar to e-mail it does not transfer to the column To the e-mail message. or by using one of the other roads (right-click and click the command to, etc.)

  Can someone help me?

  Thank you very much

  Jennifer

  He has already worked for you? If so, when did it stop working?

  Such problems are often associated with the entries in the address book in the fields, which usually comes to have imported also addresses and do not match the data fields in the address book in Thunderbird with the fields in the imported data.

  Open your address book and search your Contacts. are in fact all e-mail addresses in a field of email addresses and not elsewhere? "Nicknames" seem to be a common location to misplaced email addresses.

• How can I find the field 'Other' in my Thunderbird contacts?

  I imported my Yahoo contacts into Thunderbird. All my keywords were in the 'Notes' field in Yahoo. After import in Thunderbird, it ended up in the field 'other '.

  When I go into the search tool, it lists all of the searchable fields. 'Other' is not included. Is it possible to search for 'other '? Or is it possible to import the contacts in a way that lands the Yahoo 'Notes' in a searchable field?

  Thank you!

  I think it's this add-on you want to https://nic-nac-project.org/~kaosmos/morecols-en.html

• Received error message this message could not be sent due to the size of the field limit

  Messages come in saying that the size of the field limit, messages to be delivered. How can I fix?

  Bobrm2:
  Thank you very much for the comments, this can help others.
  Good to hear everything is now ok.

• I would really like to SEE my characters ('Lightweight themes"), and now you've done the fields URL and search unable to be moved. How can I fix it?

  More seriously, this update does nothing but irritate me. I used to be able to shorten the length of the search box and URL by placing them on the same line and added a bunch of "empty space" at the end of their. This allowed me to actually see my character.

  Now, with the update, I can't do that. I need to see all of the URL and the search box really didn't need to be almost across the width of my screen.

  It would be nice if they were adjustable in the section options, and with all these iterations of Firefox, it's really very sad that you forget that people like to customize their browser. Otherwise, why have same Personas?

  I solved the problem with an add-on:
  https://addons.Mozilla.org/en-us/Firefox/addon/classicthemerestorer/?src=HP-DL-upandcoming

  This puts some of the old options button in the Customize menu, such as 'empty space', which is useful for organizing and doing things to the left.

• When I opened a new tab, the cursor is automatically in the field of navigation, because I reinstalled Firefox yesterday. Is there a solution?

  When I opened a new tab, the cursor is automatically in the field of navigation, because I reinstalled Firefox yesterday. Is there a solution?

  I solved.

  I installed mutorrent, which in turn installed 'Safe Protect' of 'Intermediary' that messed up my Internet browser settings.

  I uninstalled it and everything turned back to normal, when I opened a new tab, the cursor is automatically in the address bar (ie. it is highlighted).

  Thanks for your time.

• Write "Version name" in the field "title"?

  I would export JPEGs from Aperture into lots and then import the images in the "Photos" application I would like to that the opening of 'Name of the Version' to become the "title" of the image in case of 'pictures '.

  Is it possible to write the name of the Version of the opening of the batch to the export of field before (or during) 'Title' Aperture opening?

  Thanks David

  I don't see an easy way to do it.

  Batch change presets allow only a constant string for the title field.

  However, you can change the file name for the version name, if you use 'Apply to the original file' in metadata > Batch change dialog box.

  

  As you probably know, the pictures does not use the names of files as the default titles, but you can use the script Script: batch change the titles to the w/Extension of file name in the Photos section user tip to copy the names of files in the title, once you have migrated the photo library.

  Or modify the script to copy the version names in the field title in Aperture.

• How to get rid of the fields to the left and to the right of the URL field?

  In the left field, I read for example Firefox or Mozilla Foundation (United States). I already know that
  In the field of law, I read useless Google box!

  Please see my attached screenshot:

  Details secuity/Page button

  This cannot be removed because it is supplied with the address bar.
  
  This provides users of important security options and permissions.

  Search bar

  This can be removed because the address bar now allows users to search the Web.

  To remove objects from the toolbar, follow these steps:

  1. Right-click on an empty space in the tab bar
  2. Select Customize on the menu drop-down
  3. Drag and drop the items and the unwanted