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OVL Hydrogen-Alpha CCD Filter (1.25")

OVL Hydrogen-Alpha CCD Filter (1.25'')
Our Price:  £49.99(Inc. 20% VAT)

Model:  SW20210
Brand:  OVL

This long-pass filter limits transmission of light with wavelengths longer than 650nm. Whilst suppressing all other polluting lights, the filter allows you to observe emission nebulae with greatly enhanced contrast. Ideal for observing emission nebulae or objects that emit in the H-alpha region. Suitable only for CCD photography.

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