• Welcome to TalkEmount.com, the best Sony E-mount camera and photography community on the web.
    Click here to join for free and enjoy unlimited photo uploads in our forums.

An f2.8 shootout

quezra

TalkEmount All-Pro
Joined
Aug 22, 2012
Messages
1,055
So my Sigmas arrived today! And had to run them up against my Canons... the results were interesting. Haven't tested corner performance though.

All shots are 1/20s, ISO400, JPEG straight-out-of-camera, shot in my living room at night. I did view the images in Photoshop at 100%... here the compression will spoil them somewhat. So pixel peepers sorry if it's not a perfect comparison and these are after all my opinions only.

First off, the Canon FL 55/1.2 @2.8.
096.jpg
   ---            

Tack sharp everywhere, but we already knew that :D

Going wider, the Sigma 30 @2.8
097.jpg
   ---            

Fabulous. Just wow. I was going to immediately resell this lens as my favorite 28/2 is so close yet faster, but now I'm torn.

Canon FDn 28/2 @2.8
098.jpg
   ---            

This was strange. It was nice and sharp, but much darker than all the others. When I shot it again at the middle notch between 2 and 2.8, it was exactly the same brightness as the other photos.

Canon FD 24/2.8 @2.8
098.jpg
   ---            

Very disappointing. I thought the 24 was my sharpest FD lens, but that impression appears to be because I constantly shoot my 28 at f2.0. It's poorer than the rest.

Sigma 19/2.8 @2.8
100.jpg
   ---            

Now we're in such wide territory that it's hard to really see the lens lettering. But this was as sharp as I could get it at 9.5x magnification, and it's softer than the 28, probably on par with the 24. Did I get a bad copy or is the 19 not as sharp as the 30?
 

applemint

TalkEmount Veteran
Joined
Sep 20, 2012
Messages
245
Did I get a bad copy or is the 19 not as sharp as the 30?

I don't own either, but I have read that the 30mm is a bit better than the 19mm but that overall they are (should) be fairly similar. However I would not rule out sample variation, especially with Sigma who are said to not always have the tightest quality control.
 

Jefenator

TalkEmount Top Veteran
Joined
Nov 23, 2012
Messages
914
Location
Oregon, USA
Real Name
Jeff
Thanks for sharing! When I ran a similar shootout, I found that the Sigma 30mm had better corners wide open than my other lenses did, stopped down. Yikes!! :D

Before you list your 28/2, you might consider running a BOKEH test. I would love to eventually find (then somehow justify) a fast 28mm as a good wide-normal walkabout that gives shallow focus and nice BOKEH (two aspects where the Sigma doesn't quite sweep me off my feet)

IMHO wide-open corner sharpness is fine for bragging rights, but usually not relevant in terms of practical usage. (I know there are scenarios where it could pertain but I never encounter them.) I usually run the range of apertures (at least until diffraction sets in) and compare corners from the best settings for landscape purposes.

Interesting you threw in the FL55/1.2. Talk about scary sharp... :)
 

quezra

TalkEmount All-Pro
Joined
Aug 22, 2012
Messages
1,055

quezra

TalkEmount All-Pro
Joined
Aug 22, 2012
Messages
1,055
Oh and I should point out that the Sigma 30 clearly outresolves the 5N sensor, and these tests will not look the same on a NEX-7, which perhaps might show up the FD28/2's limitations. But on a 16 megapixel APS-C sensor, it passed with flying colors.
 

Jefenator

TalkEmount Top Veteran
Joined
Nov 23, 2012
Messages
914
Location
Oregon, USA
Real Name
Jeff
I think the Sigma does just fine on the N7. This pixel view crop from the center looks almost good enough to print on my monitor. If I did print the full frame at 102dpi, it would be about 58 inches wide! :D

sigma30center.jpg
   ---            
 

quezra

TalkEmount All-Pro
Joined
Aug 22, 2012
Messages
1,055
Heh well the Sigmas cost the same as my minty copy which came with the BS-60 hood and box ;)

Sent from my LT15i using Tapatalk 2
 

Latest threads

Top Bottom