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Author Message   P Laskey Rating: N/A Votes: 0 Posted on Wednesday, January 05, 2005 - 06:41 am:    These all sound like familiar photomic ailments. First you need to find replacements for those four screws, they ensure good electrical contact and general working in the finder. Note that they are all different lengths. You need a scrapper for this. The spring that holds down the aperture indexing lever is prone to going weak, again a replacement is needed, although it need not come from a photomic head. The rail at the front may work loose so it's worth cleaning and tightening this part of the mechanism. Its accessible by unscrewing the front plate. I don't recommend taking the actual indexing mechanism - a circular track in the top of the head - apart, it can be a b*****d to get back together again properly. Lastly, the photomic heads generally need 2x 1.35v batteries rather than 1.5v, if you can get them. P Laskey