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Archive 2013 · 35 F/2 IS coma = how acceptable is this?
  
 
thelebaron
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p.1 #1 · p.1 #1 · 35 F/2 IS coma = how acceptable is this?


http://www.flickr.com/photos/ddimick/8489217784/in/pool-canon35mm_is_usm/

How much would this put you off of this lens? Im considering it and the sigma, honestly I dont know how often this would pop up. One of the reasons im looking at both of these lenses is for low light photography. Reading the reviews on this site the coma issue of one of them made me curious and eventually I found that image on flickr, it really would make astrophotography kind of a bummer with the lens.

I really like the canon's size and weight over the sigma, then again the sigma does have one more stop, and probably better overall iq. The qc issues of the sigma dont really mean much to me. Id be lying if I said the IS wasnt an interesting factor for lowlight stuff but then again if lights distort so much it kind of defeats the purpose. The few test shots posted here Ive generally liked, but I cant get over the coma now. Mountain out of a molehill?



Jun 08, 2013 at 09:22 AM
Snopchenko
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p.1 #2 · p.1 #2 · 35 F/2 IS coma = how acceptable is this?


It does indeed look like a problem with the 35/2:
http://www.lenstip.com/365.7-Lens_review-Canon_EF_35_mm_f_2_IS_USM_Coma__astigmatism_and_bokeh.html



Jun 08, 2013 at 09:39 AM
ddimick
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p.1 #3 · p.1 #3 · 35 F/2 IS coma = how acceptable is this?


Since you are talking about a picture I took at night with the Canon 35mm f 2 IS, you might like to know that it was taken thru the dirty glass of the Prudential Center at an angle to the glass. Not what I would call a valid test to assess the optical qualities of the lens.


Jun 18, 2013 at 08:03 PM
HauntedHat
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p.1 #4 · p.1 #4 · 35 F/2 IS coma = how acceptable is this?


I thought I was going to get here and try to pixel peep trying to understand what was wrong, but hot damn, that's incredibly obvious. With that price tag, that's ridiculous .


Jun 18, 2013 at 08:14 PM
Gochugogi
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p.1 #5 · p.1 #5 · 35 F/2 IS coma = how acceptable is this?


HauntedHat wrote:
I thought I was going to get here and try to pixel peep trying to understand what was wrong, but hot damn, that's incredibly obvious. With that price tag, that's ridiculous .


What's ridiculous? The price of the window glass or the lens? You'd think a building that expensive would have optically flat glass in all windows...



Jun 18, 2013 at 08:40 PM
Will Patterson
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p.1 #6 · p.1 #6 · 35 F/2 IS coma = how acceptable is this?


The L version does this as well wide open, just not to that extent.

Here's a shot from NYC a few months ago -










Zoomed in to the top left corner -









Jun 18, 2013 at 08:40 PM
ddimick
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p.1 #7 · p.1 #7 · 35 F/2 IS coma = how acceptable is this?


Here is a frame at f4.5 of the same Boston night skyline from the Canon 35mm f2 IS lens cited in this discussion. Uploaded to flickr especially for you coma detectives. It cleans up (one would hope.) I guess for those who want to shoot stars this is not the lens to use if you want to use it at f2. This shot is from a 5D MarkIII at ISO 12800. Is there then any (affordable) lens to use to shoot stars when used wide open?

http://www.flickr.com/photos/ddimick/9079741359/

Only thing I would say is that this is the only situation like this I have ever shot with this lens. As a street documentary photography lens for Canon DSLRs I can't complain. The IS helps for low light, but the problems cited here I hadn't even noticed until they were pointed out here.

I bought this lens because I knew the 35mm F 1.4 L was old, due for a refresh. I figured the new-gen IS would help this lens make up the difference in the loss of a stop. For a 35mm Canon lens I like it. My only alternatives were a cheap Canon 35mm f2 and the old L 1.4. For what I do it is sharp and contrasty. It works. The Canon 35mm f2 IS does vignette at f2 but that's not a problem for me, no more a problem than the vignetting from the 24 1.4 L or the 50mm f 1.2 when shot wide open.

But the kinds of images I look for are not the kinds the star shooters might.

This is the 35mm F2 Canon IS at f2. Night shot backlit in school yard.
http://www.flickr.com/photos/ddimick/8759388627/

This is interior of the Lincoln Memorial with Lincoln statue lit at f 2.8 at sunrise same lens.
http://www.flickr.com/photos/ddimick/8587852648/

Of an indoor gymnastics meet at f 2.0 same lens 1600 ISO
http://www.flickr.com/photos/ddimick/8400503466/

Yesterday 6/17 at a swim meet at f 2.0 same lens
http://www.flickr.com/photos/ddimick/9077183876/

and at f2 with a 3x neutral density filter same lens and event
http://www.flickr.com/photos/ddimick/9074953503/








Jun 19, 2013 at 02:45 AM
johnctharp
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p.1 #8 · p.1 #8 · 35 F/2 IS coma = how acceptable is this?


I wonder if the Samyang 35mm would be better for coma? It's not like stars move very fast!

Ken Rockwall's Review

I probably read too much Ken, his review was at the top of my search results; still, I've seen many people claim that Samyang's 14/2.8 has less coma than Canon's $2000 14L II, however that's possible. I'm waiting for the clouds to clear in North Texas so I can properly beat on my copy of the Samyang 14.



Jun 19, 2013 at 02:54 AM
 

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EB-1
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p.1 #9 · p.1 #9 · 35 F/2 IS coma = how acceptable is this?


thelebaron wrote:
http://www.flickr.com/photos/ddimick/8489217784/in/pool-canon35mm_is_usm/

How much would this put you off of this lens? Im considering it and the sigma, honestly I dont know how often this would pop up. One of the reasons im looking at both of these lenses is for low light photography. Reading the reviews on this site the coma issue of one of them made me curious and eventually I found that image on flickr, it really would make astrophotography kind of a bummer with the lens.

I really like the canon's size and weight over the sigma, then again the sigma does have one more stop, and probably
...Show more

The Sigma looks a lot better at f/2.

EBH



Jun 19, 2013 at 03:33 AM
zlatko
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p.1 #10 · p.1 #10 · 35 F/2 IS coma = how acceptable is this?


ddimick wrote:
Here is a frame at f4.5 of the same Boston night skyline from the Canon 35mm f2 IS lens cited in this discussion.


That night time shot at f/4.5 looks ok. The other shots look very good too, especially the Lincoln Memorial. That last one with the ND filter has rather harsh bokeh in the distance. I've ordered this lens and look forward to using it soon.



Jun 19, 2013 at 04:47 AM
RobertLynn
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p.1 #11 · p.1 #11 · 35 F/2 IS coma = how acceptable is this?


Comparably, this sigma looks much better:


Jun 19, 2013 at 11:29 AM
Mescalamba
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p.1 #12 · p.1 #12 · 35 F/2 IS coma = how acceptable is this?


Well, it aint nice at f2. So no landscapes at f2 as long as they have lights.


Jun 19, 2013 at 11:46 AM
bboule
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p.1 #13 · p.1 #13 · 35 F/2 IS coma = how acceptable is this?


I rarely shoot stuff like this, if I did I'm 99% sure my inclination would be to use a tripod and stop down a little.

I've only had it a few weeks but I love this lens, and coma has not shown up in a single photo that I've shot. The kind of stuff ddmick posted is more in line with what I use it for...

Who really shoots landscapes at f/2



Jun 19, 2013 at 12:13 PM
twistedlim
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p.1 #14 · p.1 #14 · 35 F/2 IS coma = how acceptable is this?


bboule wrote:
Who really shoots landscapes at f/2


+1

Crank it up to f 4.0 or f5.6 and see what it does. It would give you about the same hand hold-ability as the nonIS sigma.



Jun 19, 2013 at 01:52 PM
johnctharp
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p.1 #15 · p.1 #15 · 35 F/2 IS coma = how acceptable is this?


bboule wrote:
Who really shoots landscapes at f/2


My Samyang 14/2.8 needs to be welded to F/5.6 .



Jun 19, 2013 at 10:58 PM
Will Patterson
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p.1 #16 · p.1 #16 · 35 F/2 IS coma = how acceptable is this?


bboule wrote:
I rarely shoot stuff like this, if I did I'm 99% sure my inclination would be to use a tripod and stop down a little.

I've only had it a few weeks but I love this lens, and coma has not shown up in a single photo that I've shot. The kind of stuff ddmick posted is more in line with what I use it for...

Who really shoots landscapes at f/2



You don't, but if you're walking around a dimly lit city with your camera and want to snap some photos, you're going to shoot at a low f stop value to keep the shutter speed up.



Jun 19, 2013 at 11:41 PM





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