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M42 through the lens

astrophotography dslr Orion dso


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M42 through the lens

Camera: Olympus OMD-EM5
Lens: Sigma 120-300mm APO EX DG OS with Sigma 2x TC @ 600mm and F6.3 (adapted to micro 4/3 via Metabones Smart T adapter)
ISO800
15 two minute exposures plus 9 darks
Stacked in DSS, Initial stretch and separation into R, G, and B channels via FITS Liberator, Processed in Photoshop CS2 and Lightroom 5.6
Outermost edges cropped to remove stacking artifacts

I had never tried this combination and it gave me an equivalent view of a 1200mm lens. I tracked via a Zeq25gt mount ASCOM pulse-guided via phd2 using a ZWO 1034mc adapted to a 135mm m42 lens as a guidescope


    • Oyaji likes this

    Oh, the starburst effect is from the aperture blades of the lens.




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