maldito
Senior Member
I've noticed that with the new lens coming out, there are a lot of F4 lens. I'm a novice and so, keep wondering why F4. Why not F3, F2, F5???? As f2.8 is way more fast, why new new and expensive lens won't stick to F2.8 and just stop at F4????
A f2.8 zoom lens aside from being expensive will be damn too heavy also.