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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 17 Sep 2012 (Monday) 13:11
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New Sigma 35mm f/1.4 HSM DG

 
sgtbueno
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Jan 05, 2013 19:27 |  #1681

it is so sharp


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vinmunoz
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Jan 05, 2013 19:32 |  #1682

is it because the DOF is more thinner on the FF?


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Arob1000
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Jan 05, 2013 20:12 |  #1683

When I get some time, I'll run my copy through Focal for sharpness and to micro-adjust, I can post my results here if people are interested. I got this lens at the same time as my Tamron 24-70, both are very nice but the build quality on the Sigma 35 is just insane.

I have a bunch of e-bay bucks and am going to get some B&W MRC's for both lenses.

Is it worth getting the "nano" coating or is that just a gimmick?


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bkling
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Jan 05, 2013 23:03 |  #1684

Silverfox1 wrote in post #15447902 (external link)
^^^^^
Thanks for the time & effort with your test comparisons. :cool:

I would really appreciate it if and when you have time to compare this Sigma versus the Leica Summicron 35mm wide open back to back with the exact same subject, environment & lighting conditions. Be nice if you could use the same camera body but i dont know if your Leica is the R or M.

Regards, Ron ;)

My summicron is R. My youngest is too active that I couldn't have the opportunity to do the setup again without disturbance from him. I got to wait for the right timing. From memory, no doubt that Summicron has nice bokeh and quality built, in term of sharpness, I would think summicron is at the bottom for all the 35mm I own.




  
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FreddyHFK
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Jan 06, 2013 12:19 |  #1685

Can anyone tell me if micro adjustment remains constant at different distances from the subject? For example, for a subject at a distance of 1m (3ft) and a subject to 3m (10ft). For me this is the most important thing I had difficulty in any lens from Sigma and those who still own them often end up doing manual focus or Live Mode. I wanted badly to get 35L, I waited and saw that Canon has released 35 f2 that do not care for me so now the question is 35L or Sigma 35? One suggestion from the point of view of AF but one honest and fair. I read all the pages here and all in sample's but still I am nervous about the sigma. Thank you in advance for your answers.




  
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RafaPolit
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Jan 06, 2013 12:44 |  #1686

Welcome to the forums Freddy.

I'll let others answer about the MA (micro adjustment). Just a small heads up... there are rumors of a 35L mII to be released very soon: http://www.canonrumors​.com …ry-8-2013-new-lenses-cr1/ (external link)

That puts the rumor as a chance of announcement this very Tuesday. So, if you are indecisive, don't mind waiting a bit (and, of course, don't mind paying the probable $2K price point of the new lens :( ) it may be worth a wait.

Rafa.


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Arob1000
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Jan 06, 2013 21:24 |  #1687

I just microadjusted mine, it was +1.

Here's the sharpness test results from Focal if anyone is interested, I'm pretty happy with the results!

https://dl.dropbox.com​/u/44561143/35mm_Sharp​ness (external link)


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ShutterSnappy
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Jan 07, 2013 20:46 |  #1688

Mine shipped today from Adorama... Expecting here by Friday.. Ohhhhhh JOY!


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Invertalon
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Jan 08, 2013 00:01 |  #1689

Had taken a few hundred photos with this lens at Disney and Knotts Berry Farm the last few days... I notice one issue.... The MA value varies in artificial light versus natural light. Outdoors, 0 MA is best. Accurate, excellent results wide open. Indoors, it severely front focuses and requires +9 MA which is the same value FoCal told me as well calibrating using halogen lights.

Does this sound normal? I have been switching the MA value depending on where I am shooting. It is highly noticible. Outdoors, +9 looks terrible and 0 is perfect. Indoors, +9 is spot on while 0 is terrible

Anybody else notice similar issues? I may email Sigma about it... Seems weird. Otherwise the lens is performing great!


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RafaPolit
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Jan 08, 2013 00:19 |  #1690

Is camera-to-subject distance more or less the same when indoors and outdoors? Or are outdoors pictures usually focused at 2~3mts (6 to 9 feet) and outdoors focused more at 5~10mts (15 to 30 feet)? Also, are outdoors and indoor pictures more or less at the same aperture? Or are some at f8 and others at f1.4?

That could be optically explained more easily than just the quality of light. If you test indoor with natural light, does it still work best at 0MA? and if you turn on the lights, does it shift?

If it is truly based on light type, then I have no idea other than WB being partly guilty.

Rafa.


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Invertalon
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Jan 08, 2013 00:37 |  #1691

Indoors, I have confirmed this up to 50 feet or more. Showing it significantly. Even within 5-10 feet it will be soft if at 0. Outdoors, subjects at that same distance or greater are perfect at 0 and way off with any MA applied. All shots wide open.

It has something to do with the light type for sure or WB like you said. Still trying to figure it out myself. Noticed in some low light outdoors near night time that +9 looks better, so that throws me off a bit.

Focus is accurate and consistant and have no problems shot to shot as long as I apply the MA as required.... +9 indoors, 0 out... Strange phenomenon.


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Varago
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Jan 08, 2013 01:14 as a reply to  @ Invertalon's post |  #1692

I noticed the same problem but only with the lights in my office, small little bulbs, no idea on K value. So I did some testing with camera flash, 320ex flash, 2700K, 5000k and 6500k lights. Have to test with something about 3500 soon. All are 0 to 1 mfa but the room light can be way off (+10). Also had the same results with the Sigma 50 1.4 -1 to 0 mfa.


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Invertalon
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Jan 08, 2013 01:23 |  #1693

Interesting! Glad to hear it is not just mine... Wonder why it happens, though. Performs so good, otherwise.


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AlanU
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Jan 08, 2013 02:37 |  #1694

Invertalon wrote in post #15459874 (external link)
Interesting! Glad to hear it is not just mine... Wonder why it happens, though. Performs so good, otherwise.

All of my sigma 50mm primes I bought and tested were random like that.
My sigma crop lens 30mm did that from time to time but not as bad as the 50mm sigma primes.

The 35mm Sigma seems to not fall far from the tree regarding unreliable focus in the prime lens Sigma line.

I have zero tolerance for OOF photos due to a lens. Try explaining that when your documenting the kiss/hug/tears fo joy of parents as they greet their son/daughter down the isle during a wedding ceremony.

My 35L has never ever given me grief. Human error would be the only reason why I have a soft missed photo. I simply find the sharpness of the 35L is plenty sharp and easily enhanced in post processing. Key point is landing the shot with accuracy with full confidence. I will never have confidence in prime lenses from sigma due over a dozens of 50mm sigmaduds I went through.

Hopefully your copy is a copy variation. My gut feel is that the lens is still too fresh to hit the streets to call it a 35L killer.


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Franz-Olof
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Jan 08, 2013 06:20 |  #1695

Well, this is a dealbreaker for me too, at least a deal delayer. I think I will learn my Sigma 85 first and then see about this one.


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New Sigma 35mm f/1.4 HSM DG
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