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Made of high-quality optical glass
Filter surfaces are plan-parallel and polished. Anti-reflective filter surfaces
Filter holders made of black anodised aluminium
Filter thread on both sides (inside and outside)
Multiple filters can be used simultaneously
When observing the moon surface, the contrast is greatly increased. Also for planet Mars. On the giant plant, Jupiter, the contrast between the individual cloud bands is significantly increased, so that more and more is visible. From approx. 8" telescopic diameter and very good viewing conditions can even see some details on Saturn. Can be used from 2 inch telescopic opening. What are colour filters for? Do you even need colour filters? The colour filter darkens a little the light that comes to the eye, or on the sensor of the camera. This eliminates, among other things, excess radiation. They make the image more contrasting and a number of details become visible first.