rscheffler
Well-known
while i am very impressed with the build quality of the "replica" and its optical performance, suddenly i come up with a question if the optical quality could be degraded after few years?
i am quite sure that this degradation has happened with some modern nikon and canon lenses. just wondering if we could know how durable the optics is.
what kind of optical degradation do you mean? i don't personally know of any optical degradation issues with modern lenses that are directly caused by the materials used in the lens. do you know of something?
only time will tell us the answer to that question, i think.
The only thing I can think of would be the cement used to glue groups together. It should normally be long-lasting, but recently I came across the Facebook page of a guy who services lenses in Taichung, Taiwan. One of his specialties appears to be restoring lens groups with separation problems. I was a bit surprised that some of the lenses he serviced were relatively new and still current models. I would guess a reason would be the high heat and humidity environment in Taiwan (and elsewhere around the world), that if a lens is improperly stored, may adversely affect its durability.