2.0/100 MP vs. 1.2/85L (bokeh test)

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Archive 2010 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Fat Dave
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p.3 #1 · 2.0/100 MP vs. 1.2/85L (bokeh test)

ulrikft2 wrote:
People whine and grief so much in this forum that it is a wonder people bothers to upload test shots.. If you don't like the premises and the results, find another thread to troll, or state your opinion humbly and soberly, stop acting like retards.

Which opinions did you find to be stated in either a "retarded" manner or were made in order to "troll"?

From what I've read, members are behaving both humbly and soberly. There are some legitimate questions about how the original images were processed and how such processing may alter the ability to accurately compare what each lens is actually doing. These are important questions to ask when one is trying to make an accurate comparison.

None of this commentary is a slight on Bobu, either lens, or any other poster in the thread. It's merely people discussing how to interpret the data that has been presented.

Feb 09, 2010 at 11:59 AM

Bobu
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p.3 #2 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Fat Dave wrote:
Bobu wrote:

I adjusted only the brightness (gamma) of some images....

This makes it difficult to compare. Had you used a slower shutter speed on the 100/2 to achieve roughly equivalent brightness, I think the comparison would be easier to make.

This would be nice, but it is quite difficult to realize. Comparing the brightness of two images on the camera screen (or the small histograms) and adjusting the exposure compensation accordingly is not easy, at least for me. The perfect exposure compensation is probably also depending on the subject. The brightness at 1.2 and 2.0 with the 85L is also different, so you would have to compensate for different f-stops too.
I don't think that a slight gamma-correction in LR has such a big effect on the bokeh. You are right, for a perfect test under controlled conditions this should be considered, but this was never the aim of my quick test.

Boris

Feb 09, 2010 at 06:04 PM

Yakim Peled
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p.3 #3 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Yakim Peled wrote:
My screen is not good. All look bad to me. I'll look at it later on another screen.

Happy shooting,
Yakim.

I looked again on a better screen. No use. Both look bad, and equally so.

Happy shooting,
Yakim.

Feb 09, 2010 at 07:00 PM

Bifurcator
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p.3 #4 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Bobu wrote:
The brightness at 1.2 and 2.0 with the 85L is also different, so you would have to compensate for different f-stops too.

Yeah I hate that. What's the deal anyway? Recently someone wanted to trade me a DAT deck for a canon 20D body and when I went to look at the sample shots for that body/sensor the photog had used the aperture to compensate for the ISO settings. I thought to myself - what a n00b! Now because of OOF areas and focus points the comparison sets are mostly useless. Gaaah! It's like - didn't he know there was a shutter speed adjustment or such a thing as a tripod? I was discouraged.

Feb 09, 2010 at 11:59 PM

Bobu
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p.3 #5 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Bifurcator wrote:
Bobu wrote:
The brightness at 1.2 and 2.0 with the 85L is also different, so you would have to compensate for different f-stops too.

Yeah I hate that. What's the deal anyway? Recently someone wanted to trade me a DAT deck for a canon 20D body and when I went to look at the sample shots for that body/sensor the photog had used the aperture to compensate for the ISO settings. I thought to myself - what a n00b! Now because of OOF areas and focus points the comparison sets are mostly useless. Gaaah! It's like - didn't he know there was a shutter speed adjustment or such a thing as a tripod? I was discouraged.

I have a question about the images though. If some of these are supposed to be APO lenses how come all images are showing CA fringing? Or am I mistaken in thinking the Zeiss f/2.0 100mm Macro Planar ZE is an apochromatic design?

The Zeiss 100 MP is not an apochromatic design, but it is not bad in this regard.
The 85L definately has some CA, longitudinal and lateral.

Boris

Feb 10, 2010 at 05:50 AM

Fat Dave
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p.3 #6 · 2.0/100 MP vs. 1.2/85L (bokeh test)

The 85L is especially guilty of this wide open.

Feb 10, 2010 at 06:20 AM

cuonghuutran
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p.3 #7 · 2.0/100 MP vs. 1.2/85L (bokeh test)

I love Zeiss 100 MP for its sharpness and 3D. At the end of the day, I opted to sell it because of its CA when in macro mode. After selling it, I wish that I can afford to keep it and Leica 100 APO.

Feb 10, 2010 at 06:41 AM

Bobu
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p.3 #8 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Some more pictures of my daughter with the 100MP. All shot handheld at f/2:

This image is copyrighted by the owner

The following image is a 100% crop of another picture (also f/2). I my opinion the sharpness is fantastic for a 100% crop, shot wide open:

This image is copyrighted by the owner

Great lens with great sharpness and bokeh. I really like the 100MP.

Boris

Feb 14, 2010 at 02:31 PM

Yakim Peled
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p.3 #9 · 2.0/100 MP vs. 1.2/85L (bokeh test)

I admire the lens' sharpness almost as much as I admire your focusing ability....

Happy shooting,
Yakim.

Feb 14, 2010 at 02:53 PM

Bobu
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p.3 #10 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Yakim Peled wrote:
I admire the lens' sharpness almost as much as I admire your focusing ability....

Happy shooting,
Yakim.

Thanks Yakim, but about 60-80% of my pictures shot wide open with this lens (or the 85L) will get deleted directly, becaue of the wrong plane of focus. Today for example on 30 pictures out of 150 the focus was correct.
So my focusing ability is probably not better than the ability of many other people. BTW with the 85L there is no difference between AF and MF, the keeper rate is nearly the same.

Boris

Feb 14, 2010 at 03:14 PM

Yakim Peled
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p.3 #11 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Oh.... so you do not hate AF, right?

Happy shooting,
Yakim.

Feb 14, 2010 at 03:21 PM

Bobu
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p.3 #12 · 2.0/100 MP vs. 1.2/85L (bokeh test)

Yakim Peled wrote:
Oh.... so you do not hate AF, right?

Happy shooting,
Yakim.

No, not at all. From the tripod I use 100% MF, handheld I use about 50% MF and 50% AF (if the lens has AF). But I don't miss the AF on the 100MP.

Boris

Feb 14, 2010 at 03:34 PM

Yakim Peled
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p.3 #13 · 2.0/100 MP vs. 1.2/85L (bokeh test)

I envy you.

Happy shooting,
Yakim.

Feb 15, 2010 at 12:14 PM


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