Re: Tokina 400/5.6 variations (Re: long lens for birds?)
PM Subject: Tokina 400/5.6 variations (Re: long lens for birds?) I've seen 3 varieties of this lens. The oldest of them is the RMC. Then came the SD Finally came AF and improved optics in the AT-X SD. Here's some general observations:
Tokina 400/5.6 variations (Re: long lens for birds?)
I've seen 3 varieties of this lens. The oldest of them is the RMC. Then came the SD Finally came AF and improved optics in the AT-X SD. Here's some general observations: The old RMC may be limited to the K/M mount. The SD can h