Cygnus Loop – Wide Field

This is the first-light image with my new wide-field travel setup. I decided to try the ATIK 460EXm camera in combination with some old M42 photo lens, in this case with the Asahi/Pentax Super-Multi-Coated Takumar 135mm f2.5, a wonderful super-solid 6-element tele-lens from 1972 (my age). This combination gives a field of view of more than 5 x 4 degrees.

As a first taget I decided for the Cygnus Loop, i.e., the complete Veil complex in narrowband, since it’s around full moon. This is a two-color version using 24 x 300 sec exposures each for Ha and OIII. Fairly basic processing. A three-color version will be coming…


Exposure: HO, (24,24) x 300sec Date: 2016-7-17…2016-7-18
Setup: Takumar 135mm f2.5 with ATIK 460EXm Site: Felanitx, Mallorca, Spain

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