Originally posted by LeDave How long can I use a Pentax MX with new light seals before it needs to be replaced? Is there a certain time period? Months? Years? Thanks. I know a seal needs to be replaced once it begins to get sticky, however what is the estimate?
That depends on the quality of the materials in the new seals, which is probably unknown. Other unknowns include storage and use conditions. If the new materials are the same as originals,based on my experience they should last 15 or 20 years.