Here's a question....
Take Sigma and some of the other big independent lens manufacturers.
Using Sigma as an example, they make some cracking telephoto lenses and telephoto zoom lenses. The 120-300 is fabulous, the 300 prime is very good as is the 500 4.5.
So, therefore, I ask the question..............
Why don't Sigma do a fast 400mm prime lens - say F2.8?
(you get the general background to this, I want a 400mm 2.8L but can't afford one!)
I'd be interested in your thoughts on this!!
Mine was more of the loose broad answer. I love their EX series lenses. If you can get them to feel sorry for you... it might work.
