Originally posted by Lowell Goudge just to be clear about RioRico's comment that in front of the lens macro converters (or close up lenses / diopters) do not eat light, a simple explanation of how close up lenses, tele converters and macro lenses work in general is needed.
I was actually referring to screw-on tele-converters, but the principle is the same: changing the effective focal length without changing the iris or objective diameters.
Originally posted by civiletti Originally posted by Lowell Goudge what does eating light really mean?
It means you are a black body.
Only at absolute zero, right? Brrr...
[/me dashes through desert snow]