geekypenguin

600D, looks like it is supported on their website. A lot of the apps only work on WiFi or Bluetooth which mine doesn't have, but looks like this one does usb too

Hadn't thought of that, thanks!

I'm not sure if my camera is supported as it's not supported by a lot of mobile apps I've tried in the past but I'll give it a go

Thanks Adrian, I'll take a look!

I did, yes, but it's not very far on my camera. I've read a few posts about backyard Eos so that could be worth a try next, just need to find a long enough usb cable

Thanks, yes I noticed the tracking was a little off as it had drifted over the half an hour or so that I was shooting but Orion stayed in frame the whole time. Ill put a bit more effort into the alignment next time. I'll also experiment with the exposure times as suggested. Any tips for getting a better focus? I looked through the live view and adjusted to get a star as small as possible

Last night was finally clear enough to get out and try to capture the classic Orion Nebula. I used a canon DSLR with a telephoto lens at 250mm on my eq5 telescope mount. I was doing 15 second exposures at iso 3200 and f5.6, stacked with DSS and then adjusted and cropped with Photoshop. I didn't get many shots in before clouds came over (just over 100, plus dark, flat and bias frames) so do I just need to take more photos to get better images or is there something with my technique i can improve? Should I be taking a range of exposure lengths to get a good mix of the faint shadows and the detail in the bright core, or should I take lots more shorter exposures? All tips greatfuly received