I'm a complete newb at astrophotography (and photography in general) - I've been mostly playing at widefields with a Canon 350D and a Tamron 16-300 f3.5-6.3 lens until now, enough to figure out that I love this (https://i.imgur.com/BkX7fph.jpg is probably my best one yet). I'm trying to figure out what would be a good direction for equipment upgrade, especially camera-wise.
I only get regular access to dark skies when trekking in the mountains, though, so that brings in a couple limitations:
- First and most important one is weight. I can maybe find room for another lens in my backpack (the Tamron sees heavy use during the day) and one of those clockwork tracking mounts, and the camera usually stays on my hip where every extra gram hurts (I'm stubborn rather than strong ), so full-frame DSLRs or the heavier sort of APS-C such as the 70D are out
- The second one is battery power - I'm currently carrying extra batteries for the 350D but I'd like to be able to stop doing that
- Third... most of my fellow hikers are also on Canon DSLRs, so I'd prefer staying on a Canon DSLR as well, since it means we can share lenses.
Given these conditions, I realize I'm not going to get the optimal camera for astrophoto. That's fine - I just want something as good as it gets given my limitations. I'm not sure what I should look for, though. The 250D looks like it'd be great for daytime work - it's light and has great battery life, and good DxoMark scores for the sensor - but I'm not sure how it'd handle itself in an astrophoto situation. Are there any sources I should read on this, or is there anyone here who has been doing astrophoto on cropped Canon DSLRs and can tell me what that's like?