T'interwebs are full of horror stories of Sony cameras stripping the gears of some Sigma lenses, but I can't find a definitive list anywhere. Does anybody know which lenses are most prone to stripping? The reason I ask is that I have several Sigma lenses, and when my A850 turns up, I don't want to destroy any lenses that I might continue to use on my film Dynax's. I have an eight pin 28-200mm aspherical 'Compact Hyperzoom', circa 2002, which is a good walkabout job, and a 75-210mm 3.5-4.5 APO, circa 1995, which is my favourite lens of this type, out of the three that I have. I am not too worried about the 28-200mm as I also have the 28-135mm 4.0-4.5 Minolta, but the 75-210 is a different matter. My concerns lie in the fact that, according to AP, who reviewed it in 1995, it shares a lot of 'body parts' with the 70-300mm of that era, and I believe that this is one of the lenses prone to shedding it's gear teeth like an Essex girl on a Saturday night getting rid of her ....er, no, not let's go there. So, if anybody has any opinion on this, I would love to hear it. Pretty please!