04-19-2013, 09:23 AM
Hi,
When I check the webpage of this lens, It shows the optical quality and the field quality. So what's the exact meaning of the field quality?
The quality in a certain field of photography or the quality based on the real experience ?
When I check the webpage of this lens, It shows the optical quality and the field quality. So what's the exact meaning of the field quality?
The quality in a certain field of photography or the quality based on the real experience ?