85mm f 1.2 MKII not sharp

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Archive 2008 · 85mm f 1.2 MKII not sharp

mordicai
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p.1 #1 · 85mm f 1.2 MKII not sharp

I have a four month old MKII that just will not produce a nice sharp, crisp image on par with my other L lenses. Not at 1.2,2.8 or f4. It does not seem to be front or rear focusing. Its just soft. Do you think this is some thing Canon can fix or do I just have a bum lens?

Aug 22, 2008 at 12:19 AM

Jimmy Ho
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p.1 #2 · 85mm f 1.2 MKII not sharp

are you using focus + recompose or specific focal points?

Aug 22, 2008 at 12:31 AM

mark petri
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p.1 #3 · 85mm f 1.2 MKII not sharp

an full image along with exif data may go a long way to help answer.

Aug 22, 2008 at 12:39 AM

timnosenzo
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p.1 #4 · 85mm f 1.2 MKII not sharp

Post an example....

Aug 22, 2008 at 01:10 AM

Mike1
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p.1 #5 · 85mm f 1.2 MKII not sharp

It's usually user error... Crazy shallow DOF requires VERY steady hands. Try to do the same with MF & a tripod to compare against the AF on the same tripod. Make sure that you're using a remote cord or a timer and that you and/or your subject do not move. The 85 f1.2 has a bit of a learning curve to master.

Edited on Aug 22, 2008 at 01:13 AM

Aug 22, 2008 at 01:11 AM

Daan B
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p.1 #6 · 85mm f 1.2 MKII not sharp

If it is not sharp at f/4 you really have a problem

Having said that... Is MF giving you the same results as AF? On what cameras do you use the lens?

Aug 22, 2008 at 11:45 AM

Alistair Watson
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p.1 #7 · 85mm f 1.2 MKII not sharp

Agreed, posting an image with EXIF will really help.

Aug 22, 2008 at 11:47 AM

cgi_photo
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p.1 #8 · 85mm f 1.2 MKII not sharp

camera? is it soft with any camera, work other lenses fine on the body, also soft on a tripod?
since I am a "shaky" guy ;-) I try to have a shutter speed of 1/100 or better (1/160 is ok for me). below that I use a tripod.
Keep in mind the DOF at apertures of 1.2 to 4.0 is veeery thin... how do you focus? do you move your camera after focusing?

without examples and exifs it's hard to tell....

send it to Canon for calibration that's all I can say without images and further informations.

Aug 22, 2008 at 12:44 PM

itsskin
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p.1 #9 · 85mm f 1.2 MKII not sharp

Post the pics

Aug 22, 2008 at 02:05 PM

mordicai
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p.1 #10 · 85mm f 1.2 MKII not sharp

Let me take a couple of days to do a good photo evaluation and then I'll post the results here for a more informative example. Thank you for you replys........Max

Aug 22, 2008 at 03:18 PM

rhorta
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p.1 #11 · 85mm f 1.2 MKII not sharp

EF85/1.2 should be sharp even wide open, at least in the center. Even a little stopped down in becomes razor sharp in the center.

Aug 22, 2008 at 05:08 PM

recordproducti
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p.1 #12 · 85mm f 1.2 MKII not sharp

My 85L II is razor sharp, even at f/1.2

I tend to use in servo mode and get a very high keeper rate.

Aug 22, 2008 at 10:27 PM

Dawei Ye
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p.1 #13 · 85mm f 1.2 MKII not sharp

The biggest barriers to sharp photos for me is motion and dof and the noise from high ISO that I usually use in conjunction with the lens

On Tripod at ISO 100, the sharpness is amazing

Not tack sharp like it is stopped down but still "sharp" (in my opinion)

I hope it all works out, although my keep rate is really low it's the most fun lens I have to shoot with, it just oozes class

Aug 23, 2008 at 03:05 AM

hhski
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p.1 #14 · 85mm f 1.2 MKII not sharp

When testing use a tripod. The only way to eliminate movement out of the focal plane.

Aug 23, 2008 at 05:00 PM

Yakim Peled
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p.1 #15 · 85mm f 1.2 MKII not sharp

Have you tested it in any way to eliminate the possibility of user error?

BTW, here is my experience with a 35/1.4 which was "not sharp".

http://www.fredmiranda.com/forum/topic/607298

Happy shooting,
Yakim.

Aug 23, 2008 at 05:31 PM

danmitchell
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p.1 #16 · 85mm f 1.2 MKII not sharp

mordicai wrote:
I have a four month old MKII that just will not produce a nice sharp, crisp image on par with my other L lenses. Not at 1.2,2.8 or f4. It does not seem to be front or rear focusing. Its just soft. Do you think this is some thing Canon can fix or do I just have a bum lens?

Post a sample. There are many things that could be going on: technique, unrealistic expectations, front/back focusing, etc.

If it really is out of adjustment Canon can fix it. If the issue is something else there may be other remedies.

Dan

Aug 23, 2008 at 05:35 PM

rhorta
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p.1 #17 · 85mm f 1.2 MKII not sharp

I think the problem with these very fast primes is that many people want to use it wide open all the time, even when they are so close to their subject that they end up with too narrow a dof. If you find yourself being challenged by the dof, either back up, or stop down. Some will disagree, but these primes are not about shooting only wide open.

Ruy

Edited on Aug 24, 2008 at 09:32 AM

Aug 23, 2008 at 05:58 PM

SoundHound
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p.1 #18 · 85mm f 1.2 MKII not sharp

There is difference between sharp optics and OOF AF. When I shoot people at F1.2/1.4 I only expect one eye in focus (must use MF for glassess wearers for get focus on a pupil). I shoot bursts of shots and either rock my body or the MF.

Aug 25, 2008 at 05:32 PM

DoubleNegative
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p.1 #19 · 85mm f 1.2 MKII not sharp

Do NOT focus and recompose, especially wider open. You will be disappointed. Select your AF point specifically. Also realize that at f/1.2 the DoF is ridiculously thin. Finally, this lens is sharp from wide open all the way down; if yours isn't in light of the above, get it fixed.

Aug 25, 2008 at 08:58 PM

RGS65
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p.1 #20 · 85mm f 1.2 MKII not sharp

Doesn't this answer the question

mordicai wrote:
Let me take a couple of days to do a good photo evaluation and then I'll post the results here for a more informative example. Thank you for you replys........Max

Aug 25, 2008 at 09:15 PM

pawlowski6132
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p.1 #21 · 85mm f 1.2 MKII not sharp

I did a little experiment tonight. Had my 85 L on a tripod with spot metering at 200 ISO. I did my experiment a little differently though. I took a shot using AF (center focus point on the middle of the label) and then another shot using Live View and MF. One thing I found out is that in Live View, the exposure was much better. Look at the shuter speed!! What's up??

I shot 1.2, 1.4, 1.6, 1.8 and 2.0

In all series Shot A is with AF, Shot B is Live View with MF.

Edited by pawlowski6132 on Aug 25, 2008 at 09:37 PM GMT

Edited by pawlowski6132 on Aug 26, 2008 at 10:08 AM GMT

Edited on Aug 26, 2008 at 03:08 PM

Aug 26, 2008 at 02:24 AM

pawlowski6132
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p.1 #22 · 85mm f 1.2 MKII not sharp

1.2

Exif information
Model	Canon EOS 40D
Date	2008:08:25 20:57:30
Original date	2008:08:25 20:57:30
Exposure time	1/400 sec
Focal length	85mm
Focal number	f/1.2
ISO speed	200 ISO
Exposure compensation	0.0

Exif information
Model	Canon EOS 40D
Date	2008:08:25 20:58:14
Original date	2008:08:25 20:58:14
Exposure time	1/160 sec
Focal length	85mm
Focal number	f/1.2
ISO speed	200 ISO
Exposure compensation	0.0

Aug 26, 2008 at 02:31 AM

pawlowski6132
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p.1 #23 · 85mm f 1.2 MKII not sharp

1.4

Exif information
Model	Canon EOS 40D
Date	2008:08:25 20:59:06
Original date	2008:08:25 20:59:06
Exposure time	1/250 sec
Focal length	85mm
Focal number	f/1.4
ISO speed	200 ISO
Exposure compensation	0.0

Exif information
Model	Canon EOS 40D
Date	2008:08:25 20:59:27
Original date	2008:08:25 20:59:27
Exposure time	1/125 sec
Focal length	85mm
Focal number	f/1.4
ISO speed	200 ISO
Exposure compensation	0.0

Aug 26, 2008 at 02:32 AM

pawlowski6132
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p.1 #24 · 85mm f 1.2 MKII not sharp

1.6

Exif information
Model	Canon EOS 40D
Date	2008:08:25 20:59:40
Original date	2008:08:25 20:59:40
Exposure time	1/200 sec
Focal length	85mm
Focal number	f/1.6
ISO speed	200 ISO
Exposure compensation	0.0

Exif information
Model	Canon EOS 40D
Date	2008:08:25 20:59:58
Original date	2008:08:25 20:59:58
Exposure time	1/100 sec
Focal length	85mm
Focal number	f/1.6
ISO speed	200 ISO
Exposure compensation	0.0

Aug 26, 2008 at 02:33 AM

pawlowski6132
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p.1 #25 · 85mm f 1.2 MKII not sharp

1.8

Exif information
Model	Canon EOS 40D
Date	2008:08:25 21:00:10
Original date	2008:08:25 21:00:10
Exposure time	1/200 sec
Focal length	85mm
Focal number	f/1.8
ISO speed	200 ISO
Exposure compensation	0.0

Exif information
Model	Canon EOS 40D
Date	2008:08:25 21:00:35
Original date	2008:08:25 21:00:35
Exposure time	1/80 sec
Focal length	85mm
Focal number	f/1.8
ISO speed	200 ISO
Exposure compensation	0.0

Aug 26, 2008 at 02:34 AM


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