Hi. Hopefully this is the right place to ask, forgive the forum newbie if not (I tried search first btw).
I am using the K3 and very recently purchased 150 - 450 lens with the Pentax 1.4 Teleconverter, all of which are amazing, but I have a question about loss of stops.
I am aware that the converter means you lose one F Stop, not an issue at all, but this should mean that at the far end oif the zoom I should be able to select f7.1, given that it's maximum aperture is f5.6 without the tele, but I can't select anything less than f8.
Hs anyone else come across this at all, or does anyone have an explanation? It's not a big issue, I am shooting f8 at this range normally anyway, but I noticed it yesterday when trying to gain a bit of shutter speed.
Thanks!
Last edited by BigMackCam; 05-13-2016 at 12:50 AM.