School me on speedboosters
I have a new GH4 and am using a 7-14mm on it right now. the lens is sharp, but perhaps a bit too wide (I was using a 12-24mm on my D5300 before, and it was just right.)
I am considering moving to a new lens - some thing that will give me an 18-36mm equivalent FOV. I was looking at the sppedbooster and using the 12024mm, but I cant figure out all the info on manual settings required with it, and how to calculate what my effective FL's will be with a given lens.
Please tell me how these things work. THanks.
Panasonic GH4, Vario 7-14mm f/4
Cambo 45NX, nikkor SW 90/8, 135/5.6, 210/5.6
Graflex Crown Graphic 4x5 (1948 model)