Kase Night Focus Tool (Bahtinov mask) 100x100mm


The Kase Night Focus Tool is designed to assist you in manually focusing on light sources at night. This can be both man-made or stars for example.  A series of thin lines etched into the flat surface allow you to focus to a sharp point of light, no more out of focus night images. Please see below for video demonstration.

In stock


Kase Night Focus Tool or Star Focus Tool (Bahtinov mask)

100 x 100 Square Etched Optical Resin Filter

Protective Pouch

High Transmittance Rate


High Hardness

CNC Manufactured

The producing processes are according to the rule of EU ROHS, EN 71-3 requirements and reach the quality requirement of light weight, non-toxic, safety and environmental.


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