Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Sony Alpha dSLR / Konica Minolta dSLR, Sony SLT

Reply
 
Thread Tools Search this Thread
Old May 20, 2011, 7:21 PM   #1
Senior Member
 
Join Date: Feb 2006
Location: California
Posts: 2,274
Default Some interesting comparisons; Two SAL70-200Gs

This is a very unusual circumstance, but I've got two of these lenses and the differences are a bit surprising to me.
I figured that the QC on a G lens would have these two lenses compare very close to one another. I'll let you decide.
No post processing has been done on these shots. They came from a A700 on a tripod with the 2 second delayed shutter. They where uploaded into Aperture 3 cropped to 200% and converted to 1024 X1024 jpeg.

lens #1 70mm at f/2.8
Attached Images
 
__________________
A-mount
E-mount
Canon S95
lomitamike is offline   Reply With Quote
Sponsored Links
Old May 20, 2011, 7:22 PM   #2
Senior Member
 
Join Date: Feb 2006
Location: California
Posts: 2,274
Default

Lens #2 at 70mm at f/2.8
Attached Images
 
__________________
A-mount
E-mount
Canon S95
lomitamike is offline   Reply With Quote
Old May 20, 2011, 7:24 PM   #3
Senior Member
 
Join Date: Feb 2006
Location: California
Posts: 2,274
Default

Lens 1 at 200mm at f/2.8
Attached Images
 
__________________
A-mount
E-mount
Canon S95
lomitamike is offline   Reply With Quote
Old May 20, 2011, 7:25 PM   #4
Senior Member
 
Join Date: Feb 2006
Location: California
Posts: 2,274
Default

Lens 2 at 200mm at f/2.8
Attached Images
 
__________________
A-mount
E-mount
Canon S95
lomitamike is offline   Reply With Quote
Old May 21, 2011, 1:57 AM   #5
Senior Member
 
Join Date: Jan 2007
Posts: 516
Default

Um, neither look to hot...or is it me? They are extremely out of focus.
lisalonewolf is offline   Reply With Quote
Old May 21, 2011, 8:55 AM   #6
Senior Member
 
donp's Avatar
 
Join Date: Jul 2008
Location: Naperville, IL.
Posts: 185
Default

At 70mm lens # 1 is sharper and at 200mm # 2 is clearly sharper.
donp is offline   Reply With Quote
Old May 22, 2011, 12:43 AM   #7
Senior Member
 
Join Date: Feb 2006
Location: California
Posts: 2,274
Default

donp

Thats how I see it. #1 is slightly sharper at 70mm but #2 is a lot sharper at 200mm.
Another difference the colorcast difference. #1 has a green colorcast.

lisalonewolf

Yes, they do look out of focus but keep in mind they are 200% crops. Thats about the max you can go with a 12mp sensor. It will start pixelating at 225%.

Now I have to decide which one I'm going to keep.
__________________
A-mount
E-mount
Canon S95
lomitamike is offline   Reply With Quote
Old May 25, 2011, 9:40 AM   #8
Senior Member
 
MartinSykes's Avatar
 
Join Date: Feb 2010
Location: Cheshire, UK
Posts: 854
Default

Quote:
Originally Posted by lomitamike View Post
Now I have to decide which one I'm going to keep.
Got to be #2. At 70mm I can't see much in it but at 200 #2 is clearly miles better.
__________________
AutoHDR - Free HDR software for Windows at http://www.autohdr.co.uk on Facebook at http://www.facebook.com/home.php?sk=...36045126467361
My Flickr stream: http://www.flickr.com/photos/martinsykes
Panasonic DMC-FZ38, Sony ­α580
MartinSykes is offline   Reply With Quote
Old May 25, 2011, 3:32 PM   #9
Senior Member
 
Join Date: Feb 2006
Location: California
Posts: 2,274
Default

Thanks Martin, I agree and went with #2.
__________________
A-mount
E-mount
Canon S95
lomitamike is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 2:51 AM.