Results 1 to 7 of 7

Thread: Lens front element diameter

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. 03-08-2010, 05:26 PM #1
    barba
    barba is offline
    Member
    Join Date
    Dec 2008
    Posts
    78

    Re: Lens front element diameter



    But they do not have the same focal length. One zooms from 70 to 200mm and the other is fixed at 200mm.
    Reply With Quote Reply With Quote
  2. 03-08-2010, 05:38 PM #2
    Dan Fleming
    Dan Fleming is offline
    Senior Member
    Join Date
    Dec 2008
    Posts
    247

    Re: Lens front element diameter



    Quote Originally Posted by barba


    But they do not have the same focal length. One zooms from 70 to 200mm and the other is fixed at 200mm.
    <div style="clear: both;"]</div>


    The largest aperture necessary will be at 200mm, however the larger glass may be to prevent vignetting at 70mm seeing as it is an internal-zoom lens.
    Reply With Quote Reply With Quote
« Canon 7D and Lens/Flash Rebates March 7th - April 3rd | What is normal when ordering Refurbished items from Adorama? »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules