I thought I'd stir up some discuss about University Optics eyepieces manufactured by Gailand.
In the attached a photo are 5 different 'versions' of UO eyepieces built prior to '89. They represent “vintages” of UO EPs.
All of these versions have been represented to me, by well meaning people, as 'UO eyepieces made by Gailand."
So which do you think were manufactured by Gailand and why?
Legend/Notes:
-EPs in Column "A" embossed U-#### are the same vintage/version.
-EPs in Column "B" embossed König are the same vintage/version.
-The 16.0mm König at the top of column "B" is not the same vintage as the eyepiece labeled "E".
>Look closely & note the 16.0mm König at the top of column "B" has a slight 'flat' area around the eyelens (more clearly seen in the 8 & 12mm König EPs). The taper on the eyepiece labeled "E" goes up to a rolled edge.
>You can't see that the EP at the top of Column "B" has Nickel Plated Filter Thread & Anti-Reflective Coating Reflections of Purplish on the eyelens & Deep Green as a 2nd, internal reflection. The EP labeled "E" has Blackened Filter Threads & AR Coating Reflections of Blue on the eyelens & Yellowish-Green as a 2nd, internal reflection.
-The eyepiece labeled “D” has a black ring at the bottom. It's the edge of the field stop. EP has no filter threads. (maybe a clue?).
So what do you think? Clear Skies, Bill
In the attached a photo are 5 different 'versions' of UO eyepieces built prior to '89. They represent “vintages” of UO EPs.
All of these versions have been represented to me, by well meaning people, as 'UO eyepieces made by Gailand."
So which do you think were manufactured by Gailand and why?
Legend/Notes:
-EPs in Column "A" embossed U-#### are the same vintage/version.
-EPs in Column "B" embossed König are the same vintage/version.
-The 16.0mm König at the top of column "B" is not the same vintage as the eyepiece labeled "E".
>Look closely & note the 16.0mm König at the top of column "B" has a slight 'flat' area around the eyelens (more clearly seen in the 8 & 12mm König EPs). The taper on the eyepiece labeled "E" goes up to a rolled edge.
>You can't see that the EP at the top of Column "B" has Nickel Plated Filter Thread & Anti-Reflective Coating Reflections of Purplish on the eyelens & Deep Green as a 2nd, internal reflection. The EP labeled "E" has Blackened Filter Threads & AR Coating Reflections of Blue on the eyelens & Yellowish-Green as a 2nd, internal reflection.
-The eyepiece labeled “D” has a black ring at the bottom. It's the edge of the field stop. EP has no filter threads. (maybe a clue?).
So what do you think? Clear Skies, Bill
Attached Image: