Hutech IDAS antireflective coated clear glass filter in drop-in filter insert for Canon EOS R

Hutech IDAS anti-reflective coated clear glass filter for Canon EOS R and RP cameras

This filter keeps dust away from the camera sensor or lens rear element, it also allows focusing without an effective filter, without having to refocus afterwards.

This is, for example, helpful when using narrow-band nebula filters if they darken the stars too much. Simply insert the ODW clear glass filter, focus and then replace it with the nebula filter.

This clear glass window is also inserted into the bayonet adapter when you want to photograph without filters, because otherwise the optical path would not be correct.

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