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URL: http://www.thaiexcite.com/ZWO-LRGB-36mm-Filters.html

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ZWO LRGB 36mm Filters

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รายละเอียด

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Product Description

The ZWO LRGB  36mm filter has better transmission, better coating,  better color separation

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  2mm

  

Technical Parameter:

Name: ZWO LRGB  36mm filter(4 filters)

Size: 36mm

Thickness: 2mm

here are the detailed photo

 

How to judge the positive and negative?

It is a little bit hard to judge the LRGB filters. Please watch the picture below carefully.

Transmission Curve