01-16-2012, 03:52 PM
[quote name='nandadevieast' timestamp='1326727065' post='14906']
Brightcolours:
I got what you are saying, thanks.
Field of view: They will behave like 90 and 135mm lenses on FF?
Should i put it this way? They will behave like 90 and 135mm lenses on APS-C, in 35mm terms. Right?
[/quote]
Exactly.
Equivalent field of view of a 60 x 1.5 = 90mm lens on FF.
Equivalent DOF of an f2 x 1.5 = f3 lens of FF (close to f2.8)
Equivalent field of view of a 90 x 1.5 = 135mm lens on FF.
Equivalent DOF of an f2.8 x 1.5 = f4.,2 lens of FF (close to f4)
Brightcolours:
I got what you are saying, thanks.
Field of view: They will behave like 90 and 135mm lenses on FF?
Should i put it this way? They will behave like 90 and 135mm lenses on APS-C, in 35mm terms. Right?
[/quote]
Exactly.
Equivalent field of view of a 60 x 1.5 = 90mm lens on FF.
Equivalent DOF of an f2 x 1.5 = f3 lens of FF (close to f2.8)
Equivalent field of view of a 90 x 1.5 = 135mm lens on FF.
Equivalent DOF of an f2.8 x 1.5 = f4.,2 lens of FF (close to f4)