unmarked long silver objective lens?
unmarked long silver objective lens?
What kind of objective is this??
Re: unmarked long silver objective lens?
The objective is missing its outer shroud, which would have had the markings. Just guessing from the Nikon turret and the size of the visible lens, I'd guess that it's a Nikon finite objective around (+/-) 10x. It will work without the shroud and it should be possible to figure the magnification either by comparison with known objectives or viewing a transparent printed rule or dedicated micrometer slide. Is the objective next to it, with the yellow band, a 10x? If so, does this one magnify more or less?
Re: unmarked long silver objective lens?
Thanks for the input, yes the yellow banded objective is a 10x. When I try to match the magnification to my other scope's objectives, it looks to be a 40x, and has a phase contrast ring. But when searching for a matching 40x, none of the tips match this one, but instead match the 20x. I was looking specifically at LWD Ph1 ADL objectives, which the yellow is. its gotta be a 40x, what am I missing? Any advice?