Page 1 of 2 12 LastLast
Results 1 to 20 of 23

Thread: L lens on crop sensor body

  1. #1
    Member
    Join Date
    Sep 2013
    Location
    Choa Chu Kang
    Posts
    4

    Default

    Can the canon 17-40mm wide angle L lens be used on a crop sensor body of 550D? Some people recommend against it.

  2. #2

    Default

    And why are they recommending against it?
    hi

  3. #3

    Default Re: L lens on crop sensor body

    sure can, why not?

    Just that it's 'ultra-wide' angle on full frame becomes (not-so-)'wide' on crop sensor

  4. #4

    Default Re: L lens on crop sensor body

    why not. Unless you need the ultra wide and don't intend to switch to ff then get the 10 - 22 or tokina 11 - 16 or other alternatives.

  5. #5

    Default

    You will need to apply the 1.6x focal length multiplier
    Alpha

  6. #6

    Default Re: L lens on crop sensor body

    For around the same price you can get a 17-55mm which offers IS and a max f2.8 aperture and longer reach.

    Guess that's why people don't recommend the L lens?

  7. #7

    Default

    Quote Originally Posted by Azhar Aziz View Post
    Can the canon 17-40mm wide angle L lens be used on a crop sensor body of 550D? Some people recommend against it.
    1. Yes, it can work on the Canon 550D.

    2. I usually do not recommend the lens because it is optically inferior, and in my opinion, unbefitting of its "L lens" status. I'd be happier with a Tamron or Sigma 17-50mm, the latter providing you with OS. The Canon 17-55mm f/2.8L IS is another strong contender.
    KF Photography
    Thanks for viewing!

  8. #8
    Member
    Join Date
    Jun 2012
    Location
    Jurong West
    Posts
    275

    Default Re: L lens on crop sensor body

    Azhar Aziz, the reason why people don't recommend it is because of the crop factor.
    So if you were to get 17-40, on your 550D it will became 27 - 64.
    Get the EF-S 10-22 if you wanna use on your crop body, EF-S 10-22 is also a good wide angle lens which you can consider.

  9. #9
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,392

    Default Re: L lens on crop sensor body

    Quote Originally Posted by Azhar Aziz View Post
    Can the canon 17-40mm wide angle L lens be used on a crop sensor body of 550D? Some people recommend against it.
    Ask these people why they recommend against it. Either you will learn something about lenses and camera, or you will learn something about these 'some people'
    EOS

  10. #10

  11. #11

    Default Re: L lens on crop sensor body

    Quote Originally Posted by Blur Shadow View Post
    2. I usually do not recommend the lens because it is optically inferior, and in my opinion, unbefitting of its "L lens" status. I'd be happier with a Tamron or Sigma 17-50mm, the latter providing you with OS. The Canon 17-55mm f/2.8L IS is another strong contender.

    Totally agree

    I have tried the tamron 17-50mm non-vc, and it's a superb lens for its price.

    If you need something wider, you can consider the tokina 11-16mm. I sold the canon 17-40L for the tokina 11-16, mainly for the f2.8 aperture and the better IQ

  12. #12

    Default Re: L lens on crop sensor body

    There are other cheaper and good options over the 17-40L on aps-c.

    The lens provides a good range of focal lengths at a pretty fast f4 on FF. (UWA to a wide 'normal')
    17mm is already very wide on FF. (need about a 11mm lens on aps-c)
    But on aps-c, this is wasted due to the crop factor and its fov coverage becomes close to that of a kit 18-55 kit lens.
    As mentioned by others, there are cheaper/faster options like Sigma/Tamron 18-50/17-50 f2.8 for aps-c.
    For wider angles, you'd need to use a UWA like a 10-20, 8-16 or 12-24 too. (totally unlike the versatility of the 17-40 on FF )

    So its not that its no good on aps-c, but that there are other options.
    If you don't mind getting one and maybe will get a FF camera in the future, then its up for consideration too.
    Last edited by pinholecam; 29th September 2013 at 03:03 PM.

  13. #13

    Default Re: L lens on crop sensor body

    Perhaps those mysterious 'people' were recommending against buying a FF lens for a crop-sensor body i.e. wasting money on coverage for a FF sensor that you're not using.
    No reason you can't use it, but as many others have pointed out, there are more cost-effective options.

  14. #14
    Member
    Join Date
    Sep 2013
    Location
    Choa Chu Kang
    Posts
    4

    Default

    Quote Originally Posted by Azhar Aziz View Post
    Can the canon 17-40mm wide angle L lens be used on a crop sensor body of 550D? Some people recommend against it.
    Thanks guys for the advice given. Learnt something there. Appreciate it very much.

  15. #15
    Moderator rhino123's Avatar
    Join Date
    Sep 2006
    Location
    NA
    Posts
    5,247

    Default Re: L lens on crop sensor body

    Technically all EF and EF-S mount lenses (it can be from native company like Canon itself or third party manufacturer like Tokina, Sigma and Tamron) can be mounted onto a Canon DSLR (be it cropped sensor or FF). So there really is nothing wrong to put L lens to crop sensor camera like the 550D.

    Reason for not recommending the 17-40mm might be as what everyone had mentioned or simply someone out there find that it is not worth to spend so much on a lens that was designed for full frame camera to be attached to a crop sensor camera when actually there are extremely good lenses that are designed specifically for crop sensor camera like the famed Canon 17-55mm, Tamron 17-50mm (both VC and non-VC), Sigma 17-50mm OS and soon Sigma 18-35mm f1.8.
    I am not a photographer, just someone who happened to have a couple of cameras.
    My lousy shots

  16. #16
    Member
    Join Date
    May 2005
    Location
    Hougang Ave. 7
    Posts
    888

    Default Re: L lens on crop sensor body

    This video maybe slightly out of topic but show when L lenses ok for crop bodies
    http://www.youtube.com/watch?v=hk5IMmEDWH4
    Last edited by frederickykfoo; 1st October 2013 at 01:18 PM.

  17. #17
    Member Mythmaker's Avatar
    Join Date
    Oct 2011
    Location
    Buangkok MRT
    Posts
    1,011

    Default Re: L lens on crop sensor body

    You can use it, but you won't be able to tap into the entire potential.

    It will not be as sharp as mounting it on a full frame.

    Like others stated, for the same price you can get a lens that's made for crops. They will be cheaper, sharper, and probably better.
    Last edited by Mythmaker; 1st October 2013 at 04:06 PM.

  18. #18
    Moderator
    Join Date
    Nov 2010
    Location
    Somewhere
    Posts
    3,443

    Default Re: L lens on crop sensor body

    Quote Originally Posted by Mythmaker View Post
    It will not be as sharp as mounting it on a full frame.
    I'm not sure if I'm reading it as intended... Same lens mount of FF = sharper???
    Too many great equipments but too little quality photos. [My Flickr] | [My Blog]

  19. #19

    Default Re: L lens on crop sensor body

    It is generally true when an EF lens used on a crop body yields less sharpness in terms of resolving power on MTF charts compared to a FF body as seen in here
    Last edited by user12343; 1st October 2013 at 07:39 PM.

  20. #20
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,392

    Default Re: L lens on crop sensor body

    Quote Originally Posted by user12343 View Post
    It is generally true when an EF lens used on a crop body yields less sharpness in terms of resolving power on MTF charts compared to a FF body as seen in here
    Maybe it's just because the lens sits closer to the sensor..? What is the difference between a lens on 50D and 5D? Correct, it's a lens ...
    But then, what's the point of all this resolution talk? Does anybody lose money when using an EF lens on APS-C body? On the contrary, check the distortion results and vignetting of any L lens when mounted on crop body and you will see why it makes perfect sens to use a FF lens on a crop body.
    EOS

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

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