Hi This problem (slow stop-down action) often is due to leaving the lens NOT stopped down (i.e. on camera). That's something Pentax lenses do not like. The spring tend to get "tired". Don't leve the lens on the body. My 2.0/85mm, 2.5/135mm frequently get this illness, ifthey're cared for porperly.
The cure can often be clicking the aperure up (and snap back) with your finger 100 times - like once a month. I had no oil-problems in my 22 years Pentax experience. All the best Jens -----Oprindelig meddelelse----- Fra: Anton Browne [mailto:[EMAIL PROTECTED] Sendt: 8. juli 2003 00:54 Til: [EMAIL PROTECTED] Emne: Re: Place to clean/repair a 35mm f2 SMC-M? Randy, I have a 20mm f2.8 which seems slow; the blades almost glide shut as opposed to snapping shut. I took it to my tech and he tested the exposure that resulted, on his test rig. Despite appearances the exposure were spot on, meaning that the lens was in fact shutting down quickly enough. Perhaps you should have it tested first. Regards Anton __________________________________________________________________________ Join Freeserve http://www.freeserve.com/time/ Winner of the 2003 Internet Service Providers' Association awards for Best Unmetered ISP and Best Consumer Application.
