Astronomy Specialist

ZWO LRGB FILTERS 1.25"

$189.00 - Sold Out

Quantity
- +

 

This new set of 4 LRGB filters is mounted in 1.25" barrels and is specifically designed for cameras with small sensors or telescopes with a focal ratio equal or bigger than f/5.

The width of its bandpass is balanced with the spectral response of the ZWO cameras, in particular the ASI1600MM Pro. This expedient allows to balance  the exposure of each channel with the ratio of 1:1:1. That means the exposure time in red is equal to the exposure time in green and in blue.

The L filter is an IR-UV cut filter for the luminance. 

The filters are parfocal so there is no need to refocus when the filter changes. The surfaces of the filters are optically polished and fully multi-coated. 

Each filter cuts off the ultraviolet and infrared violet so there is no need to use the L filter in combination with the colour filters. 

 ZWO LRGB FILTERS 1.25"

 

     

    Glass thickness

    2.0 mm

    Optical flatness

    1/4 λ (wavefront)

    Bandpass transmission

    above 92%

    SKU

    ZWO-LRGB1.25NEW

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