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Thread: Cropped Body or Full Frame Body = good IQ

  1. #1
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    Default Cropped Body or Full Frame Body = good IQ

    Assuming the same photographer with moderate skill.

    If it is a 550D with a Canon EF 16-35mm f/2.8 L II USM or A 1DSMk3 and a 50mm f1.8 snap a better photo = good IQ ?
    5D MKII,1000D,16-35mm f/2.8 L USMII,75-300mm,18-55mm,EF 50mm f/1.8 II,EF 85mm f/1.8 USM

  2. #2

    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by cqprime View Post
    Assuming the same photographer with moderate skill.

    If it is a 550D with a Canon EF 16-35mm f/2.8 L II USM or A 1DSMk3 and a 50mm f1.8 snap a better photo = good IQ ?
    The better lens will give a better photo. If you put the same lens on the 2 bodies, the full frame camera will have better IQ.

  3. #3
    Senior Member giantcanopy's Avatar
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    Default Re: Cropped Body or Full Frame Body = good IQ

    Are they taken at the same iso settings ?
    The 50mm f1.8 prime is definitely no slouch, and the FF sensor in this case can yield more details

    Ryan

  4. #4

    Default Re: Cropped Body or Full Frame Body = good IQ

    Well, that's a very budget-oriented model against the top model.

    If you want to be fairer, you should compare a high-end APS-C to FF.

    In theory, both will have similar IQ, with the APS-C benefitting from the "sweet spot" effect on the lens, but the full frame benefitting from better dynamic range.
    Alpha

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    Default Re: Cropped Body or Full Frame Body = good IQ

    What do u mean by better dynamic range ?

    Quote Originally Posted by Rashkae View Post
    Well, that's a very budget-oriented model against the top model.

    If you want to be fairer, you should compare a high-end APS-C to FF.

    In theory, both will have similar IQ, with the APS-C benefitting from the "sweet spot" effect on the lens, but the full frame benefitting from better dynamic range.
    5D MKII,1000D,16-35mm f/2.8 L USMII,75-300mm,18-55mm,EF 50mm f/1.8 II,EF 85mm f/1.8 USM

  6. #6

    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by cqprime View Post
    What do u mean by better dynamic range ?
    http://en.wikipedia.org/wiki/Dynamic_range#Photography

    Basically, the camera can only capture a limited range of luminosity. Parts of the picture that are beyond those luminosity values will be clipped to white if it's too bright, and black if it's too dark. Of course this range does not depend on the actual darkness/lightness of the scene you photograph, it depends on your exposure. But in a single photograph, a camera can only capture a certain number of "stops" of light. That's why some people shoot high dynamic range photographs, when they want to squeeze out all the details in a scene, as a single photograph will not be able to capture all the details of a high contrast scene since some of them will be clipped to white/black. Full frame cameras typically have more "stops" of dynamic range than crop frame cameras, though the crop frame Fuji S5 Pro has a higher dynamic range than some full frame cameras like the D700.
    Last edited by brapodam; 30th January 2011 at 07:41 PM.

  7. #7

    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by cqprime View Post
    What do u mean by better dynamic range ?
    It's a basic of photography... I suggest reading up on the basics a bit more.
    Alpha

  8. #8
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    Default Re: Cropped Body or Full Frame Body = good IQ

    remember seeing this video about your title

    check it out
    http://www.youtube.com/watch?v=hk5IMmEDWH4

  9. #9
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    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by Teegongkia View Post
    remember seeing this video about your title

    check it out
    http://www.youtube.com/watch?v=hk5IMmEDWH4
    Thanks i go check it out
    5D MKII,1000D,16-35mm f/2.8 L USMII,75-300mm,18-55mm,EF 50mm f/1.8 II,EF 85mm f/1.8 USM

  10. #10

    Default Re: Cropped Body or Full Frame Body = good IQ

    If we crop the edges of the image on FF, the image will be sweeter than APC with same cropping

  11. #11
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    Default Re: Cropped Body or Full Frame Body = good IQ

    5D mk II with 50mm f1.8 or 50mm L f1.4 considering between 2 lens. I am already using f1.8 50mm, decent photos.



    Quote Originally Posted by Teegongkia View Post
    remember seeing this video about your title

    check it out
    http://www.youtube.com/watch?v=hk5IMmEDWH4
    5D MKII,1000D,16-35mm f/2.8 L USMII,75-300mm,18-55mm,EF 50mm f/1.8 II,EF 85mm f/1.8 USM

  12. #12

    Default Re: Cropped Body or Full Frame Body = good IQ

    The 50/1.8 is a better lens than its pricetag.

    The 16-35/2.8 II, though fast & wide, is really sloppy in the corners (on FF), even @ f/8.

  13. #13

    Default Re: Cropped Body or Full Frame Body = good IQ

    50mm f1.8 II is cheap, reasonable sharp on APSC and light weight as compared with 50mm fl.4. It is a practical lens for daily use and backup.

  14. #14

    Default Re: Cropped Body or Full Frame Body = good IQ

    Hi I read somewhere that between the 50mm f1.8 and 50mm f1.4, there is not much difference in the IQ. Although, the f/1.4 allow you to use an extra stop of speed, there are few situations that you will need it. Added to that, the DOF for f/1.4 is extremely narrow.

  15. #15
    Member thenomad's Avatar
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    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by snowc View Post
    Hi I read somewhere that between the 50mm f1.8 and 50mm f1.4, there is not much difference in the IQ. Although, the f/1.4 allow you to use an extra stop of speed, there are few situations that you will need it. Added to that, the DOF for f/1.4 is extremely narrow.
    whether the extra 2/3 stop is important or not depends on the individual. there will be someone out there who will value it and will need it for their circumstances. same thing goes for DOF.

  16. #16

    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by thenomad View Post
    whether the extra 2/3 stop is important or not depends on the individual. there will be someone out there who will value it and will need it for their circumstances. same thing goes for DOF.
    Hi, I understand your point here. I have both the 50mm f/1.4 and f/1.8 myself. Can share on situations which you find the extra stop useful?

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    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by thenomad View Post
    whether the extra 2/3 stop is important or not depends on the individual. there will be someone out there who will value it and will need it for their circumstances. same thing goes for DOF.
    can share under what circumstances u need f1.4
    5D MKII,1000D,16-35mm f/2.8 L USMII,75-300mm,18-55mm,EF 50mm f/1.8 II,EF 85mm f/1.8 USM

  18. #18

    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by cqprime View Post
    can share under what circumstances u need f1.4
    Low light/indoor environments where you cannot use flash. You don't want to be using f1.4 too often, the depth of field may be too shallow for you to get your subject in focus. If flash is allowed in the low light environment you are shooting at, you should probably stop down a little to like f2 or f2.8 and use the flash instead of ditching the flash and going down to f1.4

  19. #19

    Default Re: Cropped Body or Full Frame Body = good IQ

    Quote Originally Posted by cqprime View Post
    can share under what circumstances u need f1.4
    Just to share my experience on the 50mm f/1.4. Most of the time, i find myself stopping down to f/2.8 and smaller even in low-light condition due to the DOF. Usually, i used it at full aperture for shooting full-length portraits. I also find it useful in isolating small subjects or details from the background. Btw, I mounting my lens on an APS-C sensor so its effective focal length should be 75mm.

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