is below the correct way to check for FF and BF issue? is the below sigma 17-70 ok?
if this is ok, does it means the focussing will also be ok for taking group photo using wide angle?
is below the correct way to check for FF and BF issue? is the below sigma 17-70 ok?
if this is ok, does it means the focussing will also be ok for taking group photo using wide angle?
Thanks lizzy
that's what I can see also but there is a variation between forward and backward focus.
I am wondering if both sides of the focus should be symmetrical...:think:
Thanks lizzy
that's what I can see also but there is a variation between forward and backward focus.
I am wondering if both sides of the focus should be symmetrical...:think: