08-08-2011, 11:24 AM
[quote name='Klaus' timestamp='1312798406' post='10493']
f/5.6 is not a hard limit anyway though - most cameras will try to AF beyond if they don't know. However, they might have done it to assure a reasonable AF accuracy.
[/quote]
You can hide the 2x TC from the Sigma, which then allows the AF to function again. The camera will not throttle AF speed then either, which is not a problem in good light.
A shame the bokeh got a bit less smooth with the redesign of the optics, but for the rest it still looks like a good macro. I'd rather have the smoother bokeh than the image stabilization, though.
Also nice to see that Sigma changed that awful finish.
f/5.6 is not a hard limit anyway though - most cameras will try to AF beyond if they don't know. However, they might have done it to assure a reasonable AF accuracy.
[/quote]
You can hide the 2x TC from the Sigma, which then allows the AF to function again. The camera will not throttle AF speed then either, which is not a problem in good light.
A shame the bokeh got a bit less smooth with the redesign of the optics, but for the rest it still looks like a good macro. I'd rather have the smoother bokeh than the image stabilization, though.
Also nice to see that Sigma changed that awful finish.