Photography
AT Christmas I am getting a Sony Alpha A200, and my mum has recently bought it and it comes with the original lense (sony) and a Sigma 70-300mm F4-5.6 DG MACRO and the power contacts are different there are only 5 contact plates on the Sigma but there are 9 contact plates on the actual camera. We don't know if that's the problem. The problem is that when it is connected the bit that should extend does not unless you give it a hard pull, this is on manual, but the man said it doesn't work on automatic because of a ring plate fault, but even when I have pulled it out it still doesent focus, and if I do get it focused it moves itself and then becomes un-focused, my sister does photography and she has a sony alpha a450 but we diddent try hers with it. The other smaller sony lense works fine. PLEASE HELP WORLD! Thanks Lots Lots :)
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