mclaine Posted June 19, 2002 Share Posted June 19, 2002 Holding my new (used) Pentax 67 as we speak. Meter seems to work in Manual mode, but not Auto. I've taken the prism off to check it, taken the lens off as well. Under the prism is a small groove with a small brass chain bunched up in it. I'm guessing this chain somehow inter-links the lens to the prism meter. Is this chain my problem? One end of the chain dangles free, the other end is attached to a piece of black plastic which appears to be designed to travel along the groove? The small piece of plastic is currently tight in the centre of the groove. Needless to say, I don't have a copy of the manual. I'm not sure how old this one is, but the body number is 4192356. My experiments so far have been with the SMC Pentax 67 1:4 45mm lens. Any help would be very gratefully appreciated. Also, what are the best sites for on-line resources regarding Pentax 67? Regards and TIA, Link to comment Share on other sites More sharing options...
gert_jan_bollen Posted June 20, 2002 Share Posted June 20, 2002 Hi John, With a lens attached, the chain tells the prism the aperture setting since it needs since it is lens open measurement in "auto" mode. the brightness is always the same. to keep a long story short 1)the chain is broken or the spring that keeps the chain on tension. That Chain is only used in auto mode so manual is still OK. The chain is delicate and the best way to work is to remove the lens before attaching the lens. Kind regards Gert Jan Link to comment Share on other sites More sharing options...
mclaine Posted June 21, 2002 Author Share Posted June 21, 2002 Thank you Gert Jan. I gather my chain has to be reconnected on the left side to something below the groove? I will try to find a technician to do this for me. Link to comment Share on other sites More sharing options...
willie_ju Posted June 21, 2002 Share Posted June 21, 2002 The chaing engages itself when you mount the lens but the prism has to be attached first. Link to comment Share on other sites More sharing options...
steve_rasmussen Posted June 22, 2002 Share Posted June 22, 2002 A rough guess on your 419xxxx serial number on your body is 1992. Link to comment Share on other sites More sharing options...
mclaine Posted June 23, 2002 Author Share Posted June 23, 2002 Thank you Willie and Steve Link to comment Share on other sites More sharing options...
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