Discovery Astrophotography with ZWO ASTRO

LRGB Filters

$148.00 – $299.00

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Free worldwide shipping over USD 199

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2-year free warranty service

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Description

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

1.25″ LRGB Filters

Technical Parameter

Size: 1.25″

Thickness: 5.5 mm+2.5 mm(thread)

Thread: M28.5*0.6

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 700-1100 nm 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

Transmission curve:

2″ LRGB Filters

Technical Parameter

Size: 2″

Thickness: 5 mm+2.5mm(thread)

Thread: M48*0.75

Thickness: 1.85mm

How to judge the positive and negative?

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

LRGB 36mm Filters

Technical Parameter

Size: 36mm

Thickness: 2mm

Transmission Curve

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Additional information

Choose to Buy

ZWO LRGB1.25NEW, ZWO LRGB31, ZWO LRGB36, ZWO LRGB2

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