Have been battling collimation of the SCA260 for a long time, but found a solution in the end. Had some support from Sharpstar, but there were some misunderstandings in the communication, leading to looking in the wrong place for a solution for a few months. Found out a few days ago, after which the issues were fixed in no-time. As a spin-off i learned to collimate the SCA260 under the sky, which is easy for the primary, but a little bit more complex for the secondary. Also had to move the primary mirror around, to find a sweet spot in the back focus, where field flattening works best. Had not expected this to be required for this type of scope. But it is. Anyway, learned a lot, got it to work, so i’m happy!
Made a quicky of Leo’s Triplet as a proof of concept, just before the clouds moved in; only got 30x120s IR/UV Cut, 8x120s RGB, for calibration just flats for the IR/UV cut filter, no darks or bias, thus some paint-by-number guerrilla tactics were applied in post. Totally love the round stars; It’s a relief!
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