Andromeda Galaxy, M31, with the Lunt 80mm f/7 doublet apo refractor for stack of 5 x 15 minute exposures at ISO 800 with Canon 5D MkII and Borg 0.85x flattener/reducer. Companion galxies, M31 and M110 also shown. Taken from home. Field is roughly 4 x 2.5°.
M31, with 135mm Canon L-lens at f/2.8 and Canon 20Da camera at ISO 800 for stack of 3 x 4 minute exposures. Taken Sept. 8, 2007 from home. Very slightly soft. Simulated binocular field.
A demo image with the Orion 80mm CF Apo and Celestron AVX mount, with 3 x 8 minute and 3 x 6 minutes, at ISO 1600 with Canon 6D MkII plus shorter 3 x 2 minute and 3 x 1 minute exposures blended in with luminosity masks. Guided with the Orion Starshoot and Orion finderscope, using PHD2, with a lot of wild excursions in the guiding.
