Lightbender
19-Nov-2013, 23:08
Hello, I have an early version of a 210mm f9 G-Claron.
I noticed that I can use just the front cell and have a much longer focal length. (300mm?)
Does anyone know what the max aperture would be?
Will there be a focus shift when I stop down the lens?
Thanks for the info!
I noticed that I can use just the front cell and have a much longer focal length. (300mm?)
Does anyone know what the max aperture would be?
Will there be a focus shift when I stop down the lens?
Thanks for the info!