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$30.50
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Model No. : | 2021061621 |
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Brand Name : | Bohr |
Surface Quality : | 60/40 |
Deskripsi Produk
D30*13.5mm Efl50mm AR Lensa Achromatic
Material: | K9+ZF2 |
Diameter: | 30mm |
Radius: | R1=29.2mm R2= -23.6mm R3= -71.45mm |
Focal length: | 50mm |
Back focal length: | 42.7mm |
Tc: | 13.5mm(Tc1=11mm,Tc2=2.5mm) |
Te: | 8mm |
Centration: | <3' |
Dia tolerance: | +0/-0.1mm |
Thickness tolerance: | +0.1/-0.1mm |
Surface quality: | 60/40 |
Coating: | AR 400-700nm |
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