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  1. #21
    jcc
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    That much glass takes a while to move for tiny motors.

  2. #22
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    Your guys idea of slow is comical... Try a 50mm 2.5 macro lens with no USM motor and then tell me what slow is...
    ~Stone | "...of course, that's just my opinion. I could be wrong." ~Dennis Miller

  3. #23

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    From the-digital-picture.com:

    The biggest downside to the original Canon EF 85mm f/1.2 L USM Lens was the very slow focusing speed. If you were shooting portraits, it didn't matter. But, a lens this fast begs to be used for indoor action sports. Canon has utilized the latest USM (Ultrasonic Motor) in this lens for faster (though I wouldn't give it a "fast" rating yet) and near-silent autofocus.

    The 85 f/1.2 L II's improved focus mechanism is about 1.6x faster than the original lens - noticeably faster and a very nice improvement, but not as fast as Canon's fastest autofocusing lenses. While this lens certainly has the aperture and image quality to be an excellent indoor action sports lens, the AF performance is only "good enough" in my opinion - and not matching the Canon EF 85mm f/1.8 USM Lens' AF performance.
    The Canon EF 50mm f/2.5 Macro Lens does not feature USM (Ultrasonic Motor) focusing. The result is somewhat noisy and medium-fast focusing. FTM focusing is not part of the feature set.

  4. #24
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    I've used the 85/1.2 II on film, on an EOS 3.

    Great combo but slow AF. The 1.2 is very much a specialist (portrait) lens versus the general purpose 1.8.

  5. #25

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    Quote Originally Posted by StoneNYC View Post
    Your guys idea of slow is comical... Try a 50mm 2.5 macro lens with no USM motor and then tell me what slow is...
    The 85L is easily one of the slowest focusing lenses I have ever used. The lens weights a solid kilogram. That is a LOT of glass that needs to move around during focusing. It does NOT move fast at all.

  6. #26
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    Quote Originally Posted by miha View Post
    From the-digital-picture.com:
    Yea, if I could upload a video of my 50mm 2.5 macro you would laugh, it's so loud, sometimes it freaks models out cause it's like 'weeeerewwwwwerrrrrrrwewrwreweeeeeer' as it's trying to focus... Hah! But the IQ on it is so stellar and the image is so flat... So little distortion it's great, it's one of canon's oldest EF mount lenses... This one I own may be older than me...
    ~Stone | "...of course, that's just my opinion. I could be wrong." ~Dennis Miller

  7. #27
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    Quote Originally Posted by RattyMouse View Post
    The 85L is easily one of the slowest focusing lenses I have ever used. The lens weights a solid kilogram. That is a LOT of glass that needs to move around during focusing. It does NOT move fast at all.

    Canon's original intent with the 85mm f1.2L was to make it a manual focus lens, similar to its reasoning for the TS-E PC lenses (although at the time of design these presented their own problems, before Canon came out with another set with AF instead of MF). During its testing phase it was paired with the early EOS 1 and later 1N, and it performed the task well but not quickly. This was never the camera's fault (remembering how fast a 1, 1N or 1V can focus a f2.8 400mm tele...). Like several MF lenses that have a long focus throw, even the most powerful micromotors are not efficient enough, even now, to move such large elements and mechanics with speed and precision. So the final lens was never released as a manual focus but AF with critical design was concentrated on optical performance and this is where the lens excels, and it is also a small price indeed to pay for its notably slower performance.

    The 85mm 1.2L was written up in the Canon Lenswork more than a decade ago. I'm wondering if there has been any further incarnations beyond the 1.2L II. I haven't seen any.
    .::Gary Rowan Higgins

    A comfort zone is a wonderful place. But nothing ever grows there.
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  8. #28
    StoneNYC's Avatar
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    Quote Originally Posted by Poisson Du Jour View Post
    Canon's original intent with the 85mm f1.2L was to make it a manual focus lens, similar to its reasoning for the TS-E PC lenses (although at the time of design these presented their own problems, before Canon came out with another set with AF instead of MF). During its testing phase it was paired with the early EOS 1 and later 1N, and it performed the task well but not quickly. This was never the camera's fault (remembering how fast a 1, 1N or 1V can focus a f2.8 400mm tele...). Like several MF lenses that have a long focus throw, even the most powerful micromotors are not efficient enough, even now, to move such large elements and mechanics with speed and precision. So the final lens was never released as a manual focus but AF with critical design was concentrated on optical performance and this is where the lens excels, and it is also a small price indeed to pay for its notably slower performance.

    The 85mm 1.2L was written up in the Canon Lenswork more than a decade ago. I'm wondering if there has been any further incarnations beyond the 1.2L II. I haven't seen any.
    Well my 50mm 1.4 (I think it's a mark 2?) is super fast it's really a beauty. I always seem to spend half the shoot switching between the 50mm 1.4 and 50mm 2.5 (for close ups and macro body work) but the 85L should have some seriously good glass I would assume to come close to the 1.4? Or am I wrong?

    When I was shooting more 35mm and was looking at the 50mm 1.2 L vs 50mm 1.4, I kept coming across reviews saying the 1.4 was actually sharper than the 1.2, but of course the 1.4 wasn't dust or water sealed. So maybe the 85 L glass isn't as sharp? Anyone know more about it with respect to it's sharpness and it's relative CA (or lack)? (Which is what the OP is really asking...).
    ~Stone | "...of course, that's just my opinion. I could be wrong." ~Dennis Miller

  9. #29

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    Quote Originally Posted by StoneNYC View Post
    Yea, if I could upload a video of my 50mm 2.5 macro you would laugh, it's so loud, sometimes it freaks models out cause it's like 'weeeerewwwwwerrrrrrrwewrwreweeeeeer' as it's trying to focus... Hah! But the IQ on it is so stellar and the image is so flat... So little distortion it's great, it's one of canon's oldest EF mount lenses... This one I own may be older than me...
    But we are talking speed... If you ever get the chance to try some old AF Nikkors you'll be surprised what loud is, or some 3rd party 90s AF lenses... my Sigma 24mm AF for Nikon was an outdoor lens only

  10. #30

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    Quote Originally Posted by StoneNYC View Post
    Well my 50mm 1.4 (I think it's a mark 2?) is super fast it's really a beauty. I always seem to spend half the shoot switching between the 50mm 1.4 and 50mm 2.5 (for close ups and macro body work) but the 85L should have some seriously good glass I would assume to come close to the 1.4? Or am I wrong?

    When I was shooting more 35mm and was looking at the 50mm 1.2 L vs 50mm 1.4, I kept coming across reviews saying the 1.4 was actually sharper than the 1.2, but of course the 1.4 wasn't dust or water sealed. So maybe the 85 L glass isn't as sharp? Anyone know more about it with respect to it's sharpness and it's relative CA (or lack)? (Which is what the OP is really asking...).
    I have never heard of the EF 85L describe as anything other than super sharp, starting at wide open. There's a lot of chromatic aberrations when shot wide open digitally, but the sharpness is all there, IF you can hit focus with the thin DOF at f/1.2.

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