OpticalFlatfilter

Opticalflat

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SPACE Arcade Chennai First Floor, 6A/2 (Old No. 4, 3rd St, Old Narasingapuram, Race View Colony, Guindy, Chennai,Tamil Nadu 600032

Most parabolic mirrors will have 2-4 minor uncoated areas along the edge of the mirror. See photo 2 above for an example. These are caused by the clips used to hold the mirrors in the coating chamber. Note that these are not defects. A couple of these uncoated edge strips will typically be covered up by the clips in your mirror cell anyway.