p.2 #1 · Falling in love with Sony 28-70 f2 GM again !
Xysterz wrote:
Have you compared this to a 2.8?
Compare to 2470GM2? The only real advantage is lighter which I personally don't mind anything less than 1kg. The 24 is wider yes, but 2870GM is ess blurry with the same ISO (higher shutter speed) or same shitter speed (lower ISO)
p.2 #2 · Falling in love with Sony 28-70 f2 GM again !
gordonyz wrote:
Compare to 2470GM2? The only real advantage is lighter which I personally don't mind anything less than 1kg. The 24 is wider yes, but 2870GM is ess blurry with the same ISO (higher shutter speed) or same shitter speed (lower ISO)
How different are the lenses at various focal lengths as far as ability to capture light? Has anyone tested your theory?
p.2 #3 · Falling in love with Sony 28-70 f2 GM again !
chez wrote:
How different are the lenses at various focal lengths as far as ability to capture light? Has anyone tested your theory?
You mean the T stops. I never touched a 2470GM II
There is at least 2/3 difference. I tested against Tamron 17-28mm f/2.8 and the same brightness the 2870GM is a full stop brighter.
