Originally Posted by WCopic
I have had some problems with older Spectras and Flex-7s where I have replaced the lens and the new one seems to be a different curvature and the frame spreads it out separating the thermal pane from the main lens.
Anyone else had that issue?
I'm using the same Spectra mask I bought in 1997 still.
I can't even count how many lenses I've put through it over the years.
I have run into the separation issue you're talking about, but that was like 4 years ago. It was probably just due to a bad production run of lenses, not something particular to using a Spectra frame with a newer Spectra-class lens. As far as I know, the geometry of the frame and the molds they use for that model of lens haven't changed.