I really should be embarrassed to ask this,but i'm over 50 and i can claim the "senior moment" disorder now.lol
I am over 30, but I think I had my "ignorance moment" when I read your questions...
Does the 2x make the lens a 400 from a 200 AND the f stop from f4 to f 8????
I think that if converter looses half the light it means it is one stop which I suppose is f5.6 from f4 and not f8.
I wonder whether I have just irreparably damaged my reputation in the club... <VBG>
Boris
