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M33 2018


the Elf

M33 2018

12 x 5min, 100 flats, 150 bias, 19 darks, Sensor temp +10°C. This time I added another spacer between sensor and reducer and the effectve focal length is 800mm now, aperture is f/5.3. Under light polluted sky in my garden.
Celestron AVX (adjusted, re-lubed), GSO RC6, CCD47 reducer at 0.58 Canon EOS 600D (Rebel T3i) unmodified and not going to change it
Guiding: TSLD50D, modified to 320mm by barlow lens, ASI120MM

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