
a collection of photos by Eric Chesak
www.ericchesak.com
Filter Tests
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_MG_9281-Proplanet
Test Shot & quick grey-scale post-process, to compare the 77mm Lens-front Optek 720nm filter to the Astronomik Pro-Planet 742nm filter. No white balance adjustment was performed on this image.
InfraredProplanet 742AstronomikEric ChesakEl Paso40D Full Spectrum
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