that is a pretty serious flaw. there are devices designed to solve the problem for not a lot of money, so you could get one of them. i'm going to be using a Wimberley head so that part of the equation will be taken care of.
well, i haven't seen an A* 600 f5.6 on the used market yet, but i haven't been looking long. yes, i have the budget to afford the FA* 600 f4, but i was wondering what i would lose by going older, MF, and losing a stop. my lens will come in, so to speak, in the early fall this year and i have to decide what to get. the FA* 600 f4 is one choice. the other choice is to get the FA* 250-600 f5.6. whatever i get will be used almost exclusively with my *istD. there is a slight chance i can get both. Herb.... ----- Original Message ----- From: "Bill Sawyer" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, March 26, 2004 8:08 PM Subject: RE: tele extenders > It has one structural flaw that I think is serious - the tripod mount is at > the very back end of the lens, near the aperture ring. It is a real "stove > pipe" of a lens, long and thin. The slightest jitter is magnified out to the > end of the lens, thus making a relatively big arc. Though the lens is light, > I don't think my ball head is adequate - it needs something that clamps it > down very tight and on a large, non-rotating base. > > If you're on a budget, though, it's a good ticket for a 600mm lens. But get > the f4 if you have the money.
