D93mm قطر F900 البعد البؤري الانكسار عدسة موضوعية D93F900 عدسة مزدوجة تلسكوب فلكي متعدد المغلفة
مميزات خاصة
Microscopes Equipment
D93mm Diameter F900 Focal Length Refraction Objective Lens D93F900 Doublet Lens Multi Coated Astronomical Telescope
وصف
D=93mm F=900mm
D
93mm
F
900mm
coating film
multilayer film
Combined image quality
1/4-1/8
diameter tolerance
+0/-0.12 mm
Central thickness tolerance
±0.2mm
Focal tolerance
±0.1%
mirror finish
60/40
eccentricity
1'
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