【二枚玉】アポ屈折【三枚玉】
Ohara still sells S-FPL51, but I would not buy it. It is not of the quality
level required for astronomical objectives. The reject rate is just too high at
this point. I don't know if they stopped making it in Japan and are now buying
Chinese equivalent and re-branding it, but there is no doubt that the quality is
not what it was 10 years ago.
Rolando
level required for astronomical objectives. The reject rate is just too high at
this point. I don't know if they stopped making it in Japan and are now buying
Chinese equivalent and re-branding it, but there is no doubt that the quality is
not what it was 10 years ago.
Rolando
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