Orion Nebula

Orion Nebula DSLR William Optics Zenithstar 73

My best effort on the Great Orion nebula to date. Taken with the Zenithstar 73 telescope at 430mm/f5.9. The image is a big improvement over my recently captured image with the Tamron 100-400mm/f6.3. The new Optolong L-eNhance filter helped a lot with cutting out local light pollution in this most recent version too. I was chuffed to capture the trapezium cluster in the core of the nebula this time around. To get the maximum dynamic range I captured all of the shots at iso 100 on the modified Nikon D5500.

Image details: Modified Nikon D5500 and William Optics ZenithStar 73 II APO with 73a field flattener at 430mm / f5.9. 4 hours and 14 minutes of exposure time (127 x 120 seconds) at iso 100. Using Optolong L-eNhance filter. Tracked with unguided AstroTrac TT320X-AG. Stacked in Deep Sky Stacker with 20 dark / 40 flat / 40 bias frames. Sequenced with N.I.N.A.. Edited with Photoshop and Starnet++

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