U of S | Mailing List Archive | alt-photo-process-l | OT: Teleconverter Calculation

OT: Teleconverter Calculation



Hi, I am interested in getting a teleconverter lens for my digital camera.
The spec. for the lens says that it "
converts the focal length by a factor of 1.75." Before getting the lens, I
would like to get an idea how much "closer" I will be able to get to the
object. Does anyone know how I can calculate that?


Thanks,
Dave