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URL: http://www.thaiexcite.com/ZWO-LRGB-2-Filters-Set.html

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ZWO LRGB 2" Filters Set

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รายละเอียด

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Product Description

The new  ZWO 2″ LRGB Filters has good performance in transmission, also it has good coating,  good color separation.

Technical Parameter:

Name: ZWO 2″ LRGB Filters  (4 filters)

Size: 2″

Thickness: 5 mm+2.5mm(thread)

Thread: M48*0.75

Thickness: 1.85mm

the RGB color combine weights will be approximately 1:1:1

• Fine-optically polished to ensure accurate 1/4 wavefront
• more than 92% transmission at passband
• Infrared wavelength 700-1100nm cut-off
• Precision off-band blocking
• Multi-layers anti-reflection coating
• Small spectral “gap” to minimize effect of light pollution
• More parfocal – thickness 1.9+/-0.03 mm

here is the the transmission curve