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Thread: Whats the different from CF and FF?

  1. #1

    Default Whats the different from CF and FF?

    Hi,

    Planning to upgrade to 7D or 5D. The different in pricing for a FF 5D is quite a lot but the spec not as good or should say fast. Can someone enlighten me what are the advantage of a FF vs CF?

  2. #2
    Moderator daredevil123's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by MrFunnyBaby View Post
    Hi,

    Planning to upgrade to 7D or 5D. The different in pricing for a FF 5D is quite a lot but the spec not as good or should say fast. Can someone enlighten me what are the advantage of a FF vs CF?
    Pictures from a FF camera... very low noise, much wider... ooooo so sweeeeet...

  3. #3

    Default Re: Whats the different from CF and FF?

    With the lens i own now which one is compatable with 5D?

    Sigma 18-200
    Sigma 50 f1.5
    Tokina 11-16 f2.8
    Tamron 17-55 f2.8

    I guess only the 50mm f1.4 is usable huh?
    How to see which lens is for FF body?

  4. #4

    Default Re: Whats the different from CF and FF?

    For Sigma, those with a "DG" is for full frame and CF... while those with a DC is for cropped only

  5. #5
    Senior Member denniskee's Avatar
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    Default Re: Whats the different from CF and FF?

    look at the photos posted by michael49 (scroll down)

    http://www.fredmiranda.com/forum/topic/666523

    Using different focus length of lens on CF (50mm on 40d) & FF (80mm on 5d) cameras to give similar angle of view without changing camera position, the perspective remains the same, but notice the difference in DOF although both lens aperture is f4, FF camera has shallower DOF.
    Last edited by denniskee; 5th August 2010 at 11:23 PM.
    photography makes one sees things from all angles.

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    Moderator Octarine's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by MrFunnyBaby View Post
    With the lens i own now which one is compatable with 5D?

    Sigma 18-200
    Sigma 50 f1.5
    Tokina 11-16 f2.8
    Tamron 17-55 f2.8

    I guess only the 50mm f1.4 is usable huh?
    How to see which lens is for FF body?
    Tamron is only 17-50. But even if you mixed it up with Canon EF-S 17-55 it doesn't matter. Both lenses are designed for cropped sensor cameras. Compatibility of lenses is stated at the manufacturer's website. The differences / advantages / disadvantages between both sensor types is debated since ages. Google for 'full frame advantage' and read, here the first results:
    http://www.kenrockwell.com/tech/full...-advantage.htm (always take KRW with a pinch of salt)
    http://www.digitalrev.com/en/why-ful...2-article.html
    http://photo.net/equipment/canon/fullframe/
    http://www.luminous-landscape.com/co...ct-24-04.shtml (yeah, a bit more philosophy.. but the guys just know their things)
    What exactly is the reason for your camera upgrade? Don't forget to upgrade also the area behind the viewfinder
    Last edited by Octarine; 5th August 2010 at 01:19 AM.
    EOS

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    Moderator daredevil123's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by MrFunnyBaby View Post
    With the lens i own now which one is compatable with 5D?

    Sigma 18-200
    Sigma 50 f1.5
    Tokina 11-16 f2.8
    Tamron 17-55 f2.8

    I guess only the 50mm f1.4 is usable huh?
    How to see which lens is for FF body?
    You just answered your own question.

  8. #8
    Moderator daredevil123's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by Octarine View Post
    Don't forget to upgrade also the area behind the viewfinder
    +1

    "The most important component of the camera is the 12 inches behind it." - Ansel Adams

  9. #9

    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by daredevil123 View Post
    Pictures from a FF camera... very low noise, much wider... ooooo so sweeeeet...
    i think the "much wider" part is disputable.

    i do agree that lower noise is an added benefit.

    but there are also drawbacks. costs are going to be higher than most people think (they only look at the FF body costs) when you factor in the fact that to maximize potential of the sensor, you will have to do better than the usual consumer grade lens. good FF lens costs money. and that money can add up to much more than the FF cost.

    other than that, tendency to be bigger as well. and of course added benefit of viewfinder being much more sweet.

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    Senior Member wildcat's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by MrFunnyBaby View Post
    Hi,

    Planning to upgrade to 7D or 5D. The different in pricing for a FF 5D is quite a lot but the spec not as good or should say fast. Can someone enlighten me what are the advantage of a FF vs CF?
    I would say, if you don't have a reason to go FF, then stick with CF. Don't go looking for reasons if you don't find a need for it. The cost is not just in the camera but also the lens, as FF lens tend to be more expensive while manufacturers tend to make cheaper versions of everything for their more entry level cameras (don't think there's any entry level FF).

  11. #11

    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by wildcat View Post
    (don't think there's any entry level ff).
    a850?
    Alpha

  12. #12
    Moderator daredevil123's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by night86mare View Post
    i think the "much wider" part is disputable.

    i do agree that lower noise is an added benefit.

    but there are also drawbacks. costs are going to be higher than most people think (they only look at the FF body costs) when you factor in the fact that to maximize potential of the sensor, you will have to do better than the usual consumer grade lens. good FF lens costs money. and that money can add up to much more than the FF cost.

    other than that, tendency to be bigger as well. and of course added benefit of viewfinder being much more sweet.
    Actually, from what I have seen, even on similar "FOV focal length" FF will be able to capture more on top and below. Even when angle of view from left to right is the same, you get a larger top to bottom angle of view. This is due to the difference in aspect ratio between APS-C and full frame sensors.
    Last edited by daredevil123; 5th August 2010 at 01:17 PM.

  13. #13

    Default Re: Whats the different from CF and FF?

    Seems like no one mentioned DOF.

    At the same fov, the FF will hv nearly 50% shallower dof compared to aps-c sensor.

    This is great for portrait shooters and bokeh lovers.

  14. #14

    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by daredevil123 View Post
    Actually, from what I have seen, even on similar "FOV focal length" FF will be able to capture more on top and below. Even when angle of view from left to right is the same, you get a larger top to bottom angle of view. This is due to the difference in aspect ratio between APS-C and full frame sensors.
    ah, i get what you mean.

    ff sensor is 4:3? i know aps-c is 3:2.

    same explanation as how the lx3 (with variable aspect ratio output) has the "most" coverage in native, i suppose, just that now it's physical?

  15. #15
    Senior Member ZerocoolAstra's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by night86mare View Post
    ah, i get what you mean.

    ff sensor is 4:3? i know aps-c is 3:2.

    same explanation as how the lx3 (with variable aspect ratio output) has the "most" coverage in native, i suppose, just that now it's physical?
    eh? I thought the FX sensor (for D3, 1Ds, etc) is 36 x 24mm? Isn't that 3:2 aspect ratio?
    Exploring! :)

  16. #16

    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by ZerocoolAstra View Post
    eh? I thought the FX sensor (for D3, 1Ds, etc) is 36 x 24mm? Isn't that 3:2 aspect ratio?
    then i don't know what DD123 talking about, then.

    i haven't had experience with FF camera files, only FF cameras... play with friend's one.

  17. #17

    Default Re: Whats the different from CF and FF?

    Same theory actually. U super-impose a cf image on a ff one and u will see that it's wider and taller due to the sensor size

  18. #18

    Default Re: Whats the different from CF and FF?

    the only thing i seemed to come up with was that D3 has 5x4 option. i'm not even sure how that works, though, and D700 does not have that option.

    maybe DD123 could elaborate? i have been looking at threads comparing similar effective 35mm focal lengths... DX versus FX, they seem to suggest that say, 10mm on DX will be exactly similar to 15mm on FX.

    maybe i'm missing something here.

  19. #19

    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by cutecdo View Post
    Same theory actually. U super-impose a cf image on a ff one and u will see that it's wider and taller due to the sensor size
    yes, but DD123 seems to be suggesting is that:

    have 10mm on APS-C format (15mm effective focal length in 35mm terms)
    versus 15mm on FX

    15mm on FX frame will have MORE in the frame - height wise at that. this is confusing. my understanding has always been that they are exactly the same, after you do the crop factor conversion.

  20. #20
    Senior Member ZerocoolAstra's Avatar
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    Default Re: Whats the different from CF and FF?

    Quote Originally Posted by night86mare View Post
    yes, but DD123 seems to be suggesting is that:

    have 10mm on APS-C format (15mm effective focal length in 35mm terms)
    versus 15mm on FX

    15mm on FX frame will have MORE in the frame - height wise at that. this is confusing. my understanding has always been that they are exactly the same, after you do the crop factor conversion.
    never mind... on saturday I try to do a comparison with NNB's camera. I shoot at 12mm (widest) and he shoot at 18mm. We post up and see
    Exploring! :)

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