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  1. #1
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    ef50mm f/1.2L USM

    Today, I was pleasantly surprised when I found out my work purchased a new lens for testing. This time, quite an expensive one! When we pulled it out of the box, I couldn't help but notice how hefty it is! It really puts my 50mm 1.4 to shame in that regard. Build quality also seems very nice.

    Looked at some reviews and it seems to perform admirably, but not much better (if that) than some of the other 50mm primes. The benefit, obviously, is the optional f1.2.

    Has anyone had experience with this lens?

    I may be taking it home sometime soon to check out


  2. #2
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    May 2005
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    No experience here. Would love to get one but there appears to be some dialogue on the internet on a problem with the focal plane shifting slightly when stopping down to around f/2, so I'm waiting to see what happens.

    Oh, and for the inevitable price drop after the early adopters.
    Last edited by cwphoto; 05-16-2007 at 07:30 AM.
    Christian Wright; Dip Phot
    EOS 5D Mark III | EOS 600D | EOS-1V HS
    L: 14/2.8 II | 24/1.4 II | 35/1.4 | 50/1.2 | 85/1.2 II | 135/2 | 180/3.5 Macro | 200/2.8 II | 400/2.8 IS | 16-35/2.8 II | 24-105/4 IS | 70-200/2.8 IS II | 100-400/4.5-5.6 IS
    580EX II | EF 12 II | EF 25 II

  3. #3
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    Apr 2006
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    Dallas, Texas
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    Quote Originally Posted by cwphoto View Post
    No experience here. Would love to get one but there appears to be some dialogue on the internet on a problem with the focal plane shifting slightly when stoppind down to around f/2, so I'm waiting to see what happens.
    yea me too. that's ALL i'm waiting on
    40d | 5d mk II | 2.8/16 zenitar fisheye | 16-35L | 35L | sigma 1.4/50 | sigma 2.8/50 Macro | sigma 1.4/85 | 70-200L IS
    website
    disclaimer: posts are for personal entertainment only...not to be taken seriously...ever.

  4. #4
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    Aug 2006
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    Chicago, IL USA
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    Quote Originally Posted by swgod98 View Post
    I found out my work purchased a new lens for testing.
    Where do you work, and what are they testing with the lens?
    Nikon D300 | MB-D10 | Nikkor 12-24/4 | Nikkor 50/1.8 | Nikkor 70-200/2.8 VRI | Sigma 18-50/2.8 | SB-800 | SB-80DX (x4) | Radiopopper JrX Studio |

  5. #5
    Join Date
    Jul 2005
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    6,590
    Quote Originally Posted by cwphoto View Post
    No experience here. Would love to get one but there appears to be some dialogue on the internet on a problem with the focal plane shifting slightly when stopping down to around f/2, so I'm waiting to see what happens.

    Oh, and for the inevitable price drop after the early adopters.
    Very stange, what could possibly cause focus to change by making the hole bigger? I can imagine with a bigger aperture the edge of the image would get a slightly different focal plane. But the whole image? Sounds a bit odd...
    Last edited by coldrain; 05-16-2007 at 03:04 PM.
    Canon EOS 350D, Tamron SP AF 90mm F/2.8 macro, Sigma 18-50mm F2.8 DC EX, Canon EF 70-200mm f/4 L USM, Tokina AT-X124 Pro 12-24mm F4, Soligor 1.7x C/D4 DG Teleconvertor, Manfrotto 724B tripod, Canon Powershot S30

  6. #6
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    Aug 2005
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    Quote Originally Posted by VTEC_EATER View Post
    Where do you work, and what are they testing with the lens?
    We sell imaging systems for biomedical purposes. The lens in question is actually being mounted to one of our higher end camera's (upwards of $20k) on a darkroom (box) about 24" from samples. I'm wondering if this focusing problem(?) will have any effect in our work...Will be interesting to find out (but, that's RnD's job).

    My friend has a 20D and the 50mm 1.8, so I'm going to be taking the lens home (probably this weekend) for him to check out as well.

  7. #7
    Join Date
    May 2005
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    Quote Originally Posted by coldrain View Post
    Very stange, what could possibly cause focus to change by making the hole bigger? I can imagine with a bigger aperture the edge of the image would get a slightly different focal plane. But the whole image? Sounds a bit odd...
    I read a bit about it over at FM (check out the lens review section for links). Apparently the lens is a non-floating design, and when stopping down at close distances the focal plane moves.
    Christian Wright; Dip Phot
    EOS 5D Mark III | EOS 600D | EOS-1V HS
    L: 14/2.8 II | 24/1.4 II | 35/1.4 | 50/1.2 | 85/1.2 II | 135/2 | 180/3.5 Macro | 200/2.8 II | 400/2.8 IS | 16-35/2.8 II | 24-105/4 IS | 70-200/2.8 IS II | 100-400/4.5-5.6 IS
    580EX II | EF 12 II | EF 25 II

  8. #8
    Join Date
    Dec 2006
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    God's Country - Australia
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    Quote Originally Posted by swgod98 View Post
    My friend has a 20D.
    careful mate. a friend with a 20d, you handling a dodgy lens and starting a thread in the canon forums. you know what they say...
    "if you hang around with dogs too long you get nothing but fleas."

    D800e l V3 l AW1 l 16-35 l 35 l 50 l 85 l 105 l EM1 l 7.5 l 12-40 l 14 l 17 l 25 l 45 l 60 l 75
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  9. #9
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    Quote Originally Posted by Rooz View Post
    "if you hang around with dogs too long you get nothing but fleas."
    Don't worry about me. I use Canon repellant

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