chris00nj
Young Luddite
I was wondering whether there was a calculation where you determine the distances where focal lengths are equivalent. For example, if I am looking through my viewfinder with a 50mm lens and I am 15 feet from the subject, how far away from the subject would I have to be with a 135mm lens to get the same frame?
pvdhaar
Peter
It's actually rather simple: (135 / 50) x 15 = 40.5 ft.
payasam
a.k.a. Mukul Dube
With an M Leica there's the practical method of using the different frames. However, I don't see why you should want to record a subject or object at the same size on your film with different lenses.
chris00nj
Young Luddite
Thanks for the tip. I'm trying to judge what size I may need for shots on my trip (to Rome).