
January 14th, 2013, 10:06 AM
|
|
|
Quote:
Originally Posted by ggibson
Question--will the DOF change in relation to the new f-stop or is it still equivalent to the old one?
|
The composite lens will act as the equivalence (0.7x focal length and 1 stop wider), which if memory serves means the depth of field will increase. You need 2x the aperture to remain the same DoF at the shorter focal length equivalent. i.e. a 100mm @ F2 is the same DoF as a 70mm @ F1 (but the convertor will make the 100mm F2 into a 70 F1.4)
__________________
Exclusively  since August 2012.
Bodies: G3, G5
Native: S7.5, P7-14, P12-35, P14, PL25, O45, P35-100
Legacy: Zuiko 28/2.8, 50/1.8, 135/3.5
|