An anti-pollution filter

The L-PRO Optolong filter is suitable for reducing light pollution due to artificial light and at the same time it is suitable for highlighting emission nebulae.
It is a broad-spectrum filter, it passes almost all wavelengths at 100% and cuts only the harmful ones; thanks to this, it can also be used on small telescopes.

Unlike narrower band filters, it does not alter colors; it is particularly suitable if used near cities, suburbs, villages or in the countryside.
Recommended for: reducing light pollution, increasing the contrast of emission nebulae


Recommended use for: DSLR, CCD or CMOS color or monochrome cameras

EOS FF version: Compatible with Canon -> 5DMK2, 5DMK3, 5DMK4, 6D
EOS Version: Canon DSLR APSC Camera
Sony A version: Compatibility with Sony FullFrame -> A7M / A7M2 / A7M3 / A7R / A7R2 / A7R3 / A7S / A7S2 / A9
Nikon FF version: Compatible with Nikon FF -> D600 / D610 / D700 / D750 / D800 / D800E / D810 / D810A / DF