Quote:
Originally Posted by M_Six
Sweet. Nice lens. Will take the Siggy 2x TC well, I bet and give you a nice lens for your aircraft shots.
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So oddly, I was looking into these earlier...was thinking of opening a thread on it cause I know nothing of them. There's a 1.4x and a 2x. Are they worth it? Which one?
Do I need to worry about distortion? How bad does it effect the aperture (looks like it would take a f/2.8 to an f/4.0)