V
Vivek
Guest
Rather difficult to find. Fused silica flats with double side (single, MgF2) coated.
50mm dia 2mm thick.
Have numerous possible uses as a filter (for UV lenses with 52mm filter) or a clear filter for "full spectrum" mods.
Makes a fabulous protective filter for the UV-Nikkor 105/4.5 while allowing full transmission, for example.
55 euros/piece shipped within the EU. If you are elsewhere, tough luck. Contact someone (not me) to buy it for you. Bank transfer preferred.
1 piece per buyer. I have a limited quantity. It is a real bargain for those who know what this is.
Parallelism arc minute <5 arc minutes
Diameter Tolerance +0.0, -0.13mm
Thickness Tolerance ±0.25mm
Surface Quality 20/10
50mm dia 2mm thick.
Have numerous possible uses as a filter (for UV lenses with 52mm filter) or a clear filter for "full spectrum" mods.
Makes a fabulous protective filter for the UV-Nikkor 105/4.5 while allowing full transmission, for example.
55 euros/piece shipped within the EU. If you are elsewhere, tough luck. Contact someone (not me) to buy it for you. Bank transfer preferred.
1 piece per buyer. I have a limited quantity. It is a real bargain for those who know what this is.
Parallelism arc minute <5 arc minutes
Diameter Tolerance +0.0, -0.13mm
Thickness Tolerance ±0.25mm
Surface Quality 20/10
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