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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 27 Dec 2009 (Sunday) 12:11
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Canon 35mm f2 vs Sigma 30mm f1.4 vs Canon 24 f2.8

 
Citizensmith
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Dec 29, 2009 21:46 |  #46

mickeyjuice wrote in post #9286628 (external link)
Or make sure you know how to use it, because an AWFUL lot of the shallow DOF "problem lenses" appear to actually be user error.

Don't actually own one, my comment was just based on professional reviews I'd read when considering getting one. I did get a Sigma 24-60 a while back. I think it was about 3 weeks before the AF crapped out and I had to pay shipping to send it in for repair. No problem with the other 2 Sigmas I use though (17-70 and 10-20), but that was pretty annoying.


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Dec 29, 2009 22:18 as a reply to  @ post 9286254 |  #47

When it comes down to the Sigma vs the Canon 35 f/2, I give the nod to the Sigma based on versatility alone- that extra stop found on the Canon 35 f/1.4 run you $1300 here in the US, and even more elsewhere.

The Sigma is also quieter, smoother, and just a bit sharper at matching focal lengths than the 35 f/2. If however you want the ability to use a lens on a ff or 1.3x sensor, the f/2 is still a great little lens, and a quite a bargain at that.


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picturecrazy
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Dec 29, 2009 23:00 |  #48

bobbyz wrote in post #9283426 (external link)
So the Sigma 30mm f1.4 won't work on 1dmk3? I remember taking some test shots with it on my 1dmmk2 and it had no problems.

It works within a limited aperture range. Shooting at wider apertures, it looks fine to me. The following photos I previously posted were all taken with on a 1.3 crop 1D mark III:

2.

IMAGE: http://www.nightanddayphoto.ca/misc/forumpics/POTN/Sig30Samples/140409_5638.jpg

3.
IMAGE: http://www.nightanddayphoto.ca/misc/forumpics/POTN/Sig30Samples/151501_8007.jpg

4.
IMAGE: http://www.nightanddayphoto.ca/misc/forumpics/POTN/Sig30Samples/151600_5515.jpg


I find it to be a wonderful lens on 1.3 crop. But it is not one to use for stopping down for large DOF as the physical vignetting will show.

-Lloyd
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kja
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Dec 29, 2009 23:07 |  #49

Lloyd - just out of curiosity and because I'm too lazy to change from my new toys (24L 1.4 II and 135L 2 yay!!) to my Sigma just to see - what aperture would you stop down to max on the 1DIII?


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Dec 29, 2009 23:13 |  #50

I chose the EF35 f2 mainly because of it's price, small size, sharpness, and good close focusing. The AF is noisy, but fast and accurate. These charts from SLRGear http://www.slrgear.com​/reviews/ (external link) show the Sigma is not very sharp wide open, and the Canon as good, or better, at smaller apertures.

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo1/Sigma14.jpg

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo1/Sigma20.jpg
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo1/EF3520.jpg

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo1/Sigma28.jpg
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo1/EF3528.jpg

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo1/Sigma40.jpg
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo1/EF3540.jpg

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Dec 29, 2009 23:13 |  #51

SnapLocally.com wrote in post #9270665 (external link)
Sigma 30 f/1.4: Good lens. *But* it's only for 1.6x sensors..

True, but Sigma also makes a 24 and 28 =)


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Dec 29, 2009 23:13 |  #52

kja wrote in post #9287222 (external link)
Lloyd - just out of curiosity and because I'm too lazy to change from my new toys (24L 1.4 II and 135L 2 yay!!) to my Sigma just to see - what aperture would you stop down to max on the 1DIII?

I dunno really. I would have to do a test. I think I remember trying F/2 and it was fine. But I very rarely shoot anything smaller than f/1.4 with this lens. That's why I bought it in the first place. I wanted a lens that was so good at F/1.4 that I'd feel NO need to stop down. I have my zooms if I want smaller apertures. :)


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mickeyjuice
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Dec 29, 2009 23:14 |  #53
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Charts are ever so much more persuasive than images.


cheers, juice (Canon shooter, Elinchrom lighter, but pretty much agnostic on brands.)

  
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kja
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Dec 29, 2009 23:16 |  #54

Yeah, that's pretty much all I've used, too, so was just hoping you'd have an off the top of your head idea. Like I said, more curious than anything :) Might try it now that my 1DIII is back from surgery.


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picturecrazy
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Dec 29, 2009 23:17 |  #55

msowsun wrote in post #9287257 (external link)
I chose the EF35 f2 mainly because of it's price, small size, sharpness, and good close focusing. The AF is noisy, but fast and accurate. These charts from SLRGear http://www.slrgear.com​/reviews/ (external link) show the Sigma is not very sharp wide open, and the Canon as good, or better, at smaller apertures.

Interesting to see that. From user reviews, the sigma is found to be absurdly sharp at F/1.4. I found it much, MUCH better than my 35 F/2, and every bit as good as my 35L. I wonder if they didn't use an accurately focusing copy for that review. The 100% crops of the F/1.4 shots surely do not disappoint.


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Dec 29, 2009 23:38 |  #56

the Digital Picture http://www.the-digital-picture.com …X-DC-HSM-Lens-Review.aspx (external link) and Photozone http://www.photozone.d​e …st-report--review?start=1 (external link) both also report some softness wide open.

Digital Picture

The Sigma 30mm f/1.4 EX DC HSM Lens is somewhat soft wide open and steadily improves to quite sharp at f/2.8. Corner sharpness trails center sharpness by a stop or two.

Photozone

The lens exhibited a quite mixed behavior in the lab. The image center showed a superb performance reaching and probably exceeding the image sensor resolution of the EOS 350D (8MP) - even at f/1.4 the center is already excellent. Unfortunately the borders and more so the extreme borders are never really able to catch up. At f/1.4 is borders extremely soft. As usual the situations improves towards medium aperture settings but not overly so. The borders are good by f/5.6 and very good at f/8. For a fix-focal lens this is slightly disappointing all-in-all.


We all know that zoom lenses are compromises regarding speed and performance but we expect fix-focals to perform better than that. Sigma AF 30mm f/1.4 EX HSM DC may perform pretty good in absolute terms but for a fix-focal the lens disappoints a little. The center performance is exceptionally high but the borders are not all that impressive. The other image parameters such as distortions, vignetting and CAs are Okay but nothing to rave about. So at the end of the day the only differentiator is its ultra-large aperture - it's up to you whether this is good enough compared to classic 28mm or 35mm lenses.


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Jmantyger
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Dec 29, 2009 23:38 as a reply to  @ msowsun's post |  #57

I've owned 2 copies and both were tack sharp wide open out of the box. Tack sharp 100% crops.

I sold the 35L I had-which was a great lens-and purchased the Sigma 30. Based on image quality, the 35L was not worth nearly $1000 more than the Sigma.


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kja
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Dec 29, 2009 23:41 |  #58

If I was looking again, I'd go for real world shooters over tests & reviews every time :)


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Jmantyger
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Dec 29, 2009 23:53 |  #59

kja wrote in post #9287416 (external link)
If I was looking again, I'd go for real world shooters over tests & reviews every time :)

Or get the test sites to obtain their copies of the Sigma 30 from B & H. The 2 I have purchased from them are undoubtedly from some super secret stock of the only sharp copies available in the whole world...

8-)


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picturecrazy
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Dec 30, 2009 00:19 |  #60

Well, lab tests aside, I know I'm not the only one who has found the sigma to be just as sharp as the 35L wide open. It makes me wonder if they checked for accurate focus when doing those tests.

I think even lightrules tested the siggy against the 35L and found the same thing, with sample photos of the same subject matter to prove it.


-Lloyd
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