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Archive 2009 · 35mm bokeh comparison

  
 
Daan B
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p.1 #1 · 35mm bokeh comparison


I was curious how the bokeh of my 35L, 35mm f/2 and 24-70L @ 35mm compared. So, I took a few pics on a tripod with the same framing/exposure (see below), and here are the results (FWIW ):

Full frame (35L @ 1.4 - the other lenses were framed the same)
http://farm3.static.flickr.com/2572/3864850849_67e4e6b980_o.jpg

BTW Differences in brightness are because of vignetting. Focus was on Salvador (distance 1,5 meters).

1) 100% bokeh crops (green bottle + tap)
http://farm4.static.flickr.com/3435/3864837755_e841a02dbe_o.jpg

2) NOT 100% bokeh crops (because flickr resized this ). Still, you make out the differences in bokeh (a few postcards and thermostat)
http://farm3.static.flickr.com/2471/3864837763_63012c5580_b.jpg

3) 100% bokeh crops (couch)
http://farm3.static.flickr.com/2474/3864837771_390106dc58_o.jpg



Aug 28, 2009 at 01:31 PM
kakomu
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p.1 #2 · 35mm bokeh comparison


On the couch crops, is that CA that causes the greenish out of focus highlights?


Aug 28, 2009 at 01:37 PM
Daan B
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p.1 #3 · 35mm bokeh comparison


kakomu wrote:
On the couch crops, is that CA that causes the greenish out of focus highlights?


Yep, that is CA. The 35L is obviously the worst compared to the 35mm f/2 (!) and 24-70L @ 35mm.



Aug 28, 2009 at 01:39 PM
borderlight
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p.1 #4 · 35mm bokeh comparison


Looks like it's sharpness vs. CA, or slight green fringing in one example. In my experience the 35 f2 doesn't begin to hit the sharpness mark until at least f2.8/3.5 whereas the 1.4L is OK @ f1.6. I would rather have a faster lens like the L wide open and deal with the rare chance of minute CA than have a f2 lens that will, like all lenses, gradually decrease CA as it's stopped down but at the expense of speed. You were looking for the needle in the haystack and you found it. For the thousands of other times the 35mm f1.4 when used as recommended (full frame) serves their owners.





Aug 28, 2009 at 03:07 PM
abam
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p.1 #5 · 35mm bokeh comparison


"one example"

make that two samples.



Aug 28, 2009 at 03:16 PM
Daan B
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p.1 #6 · 35mm bokeh comparison


Barry Pehlman wrote:
Looks like it's sharpness vs. CA, or slight green fringing in one example. In my experience the 35 f2 doesn't begin to hit the sharpness mark until at least f2.8/3.5 whereas the 1.4L is OK @ f1.6. I would rather have a faster lens like the L wide open and deal with the rare chance of minute CA than have a f2 lens that will, like all lenses, gradually decrease CA as it's stopped down but at the expense of speed. You were looking for the needle in the haystack and you found it. For the thousands of other
...Show more

Hmmm... this comparison is about bokeh, not so much about sharpness and CA's



Aug 28, 2009 at 03:20 PM
jerrykur
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p.1 #7 · 35mm bokeh comparison


Shouldn't you do this comparison at the MFD of each lens?



Aug 28, 2009 at 03:25 PM
Daan B
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p.1 #8 · 35mm bokeh comparison


jerrykur wrote:
Shouldn't you do this comparison at the MFD of each lens?


I choose to do it at the distance I normally use these lenses at (between 1,5 and 3 meters). I don't use my 35mm's as macros



Aug 28, 2009 at 03:28 PM
jerrykur
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p.1 #9 · 35mm bokeh comparison


Daan B wrote:
I choose to do it at the distance I normally use these lenses at (between 1,5 and 3 meters). I don't use my 35mm's as macros


I was hoping it would magnify any differences.



Aug 28, 2009 at 03:30 PM
Daan B
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p.1 #10 · 35mm bokeh comparison


jerrykur wrote:
I was hoping it would magnify any differences.


Well, the differences are pretty obvious to me. But maybe I have some time tomorrow to do another bokeh comparison at (or close to) MFD.



Aug 28, 2009 at 03:34 PM
kappaknight
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p.1 #11 · 35mm bokeh comparison


Hrmm, not sure which is better (or which I'd prefer) from these pics.


Aug 28, 2009 at 05:05 PM
kahren
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p.1 #12 · 35mm bokeh comparison


so whats the conclusion? buy 85L?


Aug 28, 2009 at 05:15 PM
mttran
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p.1 #13 · 35mm bokeh comparison


i did the same test with 16-35LII then sold 24L & 35L and ending up with 16-35II, 50L, 85L, 100f2, 135L, 200LII. My travel kits will be 5D2 & 16-35 & 50 & 100. Seem to work pretty good with this setup.


Aug 28, 2009 at 06:51 PM
brucemuir
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p.1 #14 · 35mm bokeh comparison


Barry Pehlman wrote:
In my experience the 35 f2 doesn't begin to hit the sharpness mark until at least f2.8/3.5




My 35 f/2 is plenty sharp wide open but then this isn't s sharpness comparison it's bokeh comparison



Aug 28, 2009 at 07:02 PM
kahren
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p.1 #15 · 35mm bokeh comparison


i would want to see a 24L vs 35L as i have a feelign the 24 is much better for this bokeh stuff


Aug 28, 2009 at 07:06 PM
mttran
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p.1 #16 · 35mm bokeh comparison


kahren wrote:
i would want to see a 24L vs 35L as i have a feelign the 24 is much better for this bokeh stuff


Yes - 24L&35L are much better but they are not much used in my bag.



Aug 28, 2009 at 07:26 PM
borderlight
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p.1 #17 · 35mm bokeh comparison


Hmmm... this comparison is about bokeh, not so much about sharpness and CA's

Until you answer this:

kakomu wrote:
On the couch crops, is that CA that causes the greenish out of focus highlights?

Yep, that is CA. The 35L is obviously the worst compared to the 35mm f/2 (!) and 24-70L @ 35mm.

I'll let Mike Johnston get on the soapbox for me.

http://theonlinephotographer.typepad.com/the_online_photographer/all-lens-tests-are-wrong.html



Aug 28, 2009 at 08:00 PM
Daan B
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p.1 #18 · 35mm bokeh comparison


kappaknight wrote:
Hrmm, not sure which is better (or which I'd prefer) from these pics.


When you look at the amount of blur, the 35L performs best. Even at f/2 it produces more blur than the 35mm f/2 wide open. BUT, the 35mm f/2 seems to have a slight advantage when stopped down to f/2.8 at closer distances (crops 2 and 3).

When you look at the nisen-bokeh (OOF highlights - crop 1) both the 35mm f/2 and 24-70L show the donut OOFH. There are also double/multiple contours. Which are all considered as non-pleasant. The 35L shows a much better performance here. All three lenses produce OOFH's that are similair in shape.

Then it is obvious that the 35L produces more CA's in (close-by) OOF areas of the frame. Both the 35mm f/2 and 24-70L are "better" in this regard.

All in all these lenses show very similair bokeh performance for this kind of shooting. There are differences though... but there isn't a clear "winner". Still, I prefer the 35L for bokeh. I am not really bothered by CA's in OOF areas. YMMV



Aug 29, 2009 at 02:29 AM
Daan B
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p.1 #19 · 35mm bokeh comparison


Barry Pehlman wrote:
Until you answer this:

kakomu wrote:
On the couch crops, is that CA that causes the greenish out of focus highlights?

I'll let Mike Johnston get on the soapbox for me.

http://theonlinephotographer.typepad.com/the_online_photographer/all-lens-tests-are-wrong.html


I did this comparison (not a test) to appreciate the differences between these lenses. I own (and use) all three of them. Comparisons like this give me a better insight which lens(es) to take for which task/job at hand. In other words... I did the comparison for myself. But I am willing to share the results (and put some effort into that) so that other can -MAYBE- benefit from it. If you have something against that, please move along (instead of putting somebody else on the soapbox). Thank you



Aug 29, 2009 at 02:41 AM
Daan B
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p.1 #20 · 35mm bokeh comparison


brucemuir wrote:
My 35 f/2 is plenty sharp wide open but then this isn't s sharpness comparison it's bokeh comparison


+1



Aug 29, 2009 at 02:48 AM
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