Medium format view cameras & bellows factor

[pkr1979]

Hi fellas,

Do you calculate the bellows factor when shooting medium format with a view camera - like the Horseman VH?

Cheers
Peter

 

[Dan Fromm]

Hi fellas,

Do you calculate the bellows factor when shooting medium format with a view camera - like the Horseman VH?

Cheers
Peter

Only when working closeup. Otherwise it isn't necessary.

 

[wiltw]

At 1:1 (extension = FL) simply add 2EV
At 1:2 (extension = 0.5*FL) simply add 1EV

Rule applies regardless of format.

 

[benveniste]

Effective aperture = (1 + m)*f, where m is the magnification and f is the physical aperture of the lens. That said, if your lens has floating elements, such as the Pentax 120mm f/4, the physical aperture changes with focus distance.

 

[pkr1979]

Thanks guys!