Quote:
Originally Posted by gregbradley
A lot of theory. ........
These ED glass/Lanthanum element lenses look interesting. I have not heard of one in a triplet yet only doublets. Which scopes have them in a triplet?
Greg.
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Greg, my TS115 Triplet uses FPL-51 and Lanthanum elements. I am very happy with it.
To quote TS:
Triplet Apo Objective with two special glasses (Lanthanum glass and FPL51) - Ohara Japan - colour correction comparable with FPL53 triplet objective