What is this fascination with iso6400?

Price may not be the only reason a 1.4 prime isn't used. Another reason could vey well be... that there is none in the market. Have you ever seen a f/1.4 400 mm lens? I haven't, and somehow suspect that if there is one to come at some point, it will be quite hefty, and will cost as much as a small car. If you look through these forums, you will find many mentions of f/5.6 and larger f numbers primes on the tele end.

Ah, but you were not thinking about the needs of those photographers! They exist, nevertheless, and have a right to express wishes and disappointments on some occasions, don't you think?

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Antonio http://ferrer.smugmug.com/