Dodgypengui

As above, my 450 D didn’t work with the intervalometer until the interval between exposures was set to 5 seconds.

B&gger. If it doesn’t focus I suppose I could switch camera, although there seems to be way shorter t-adapters out there than I’ve got. Perhaps this would compensate?

Yeah. I can only get it to focus with a Barlow on the dob at the moment. I would imagine this would still be the case even with this additional length. Going to try it.

That looks just the ticket! Many thanks. Presumed there would be something but all my searching brought up was standard star diagonals!

Is there a device that would allow me to quickly change between a camera and eyepiece on a telescope without having to dismantle the gubbins, like a splitter or something? Would a OAG attachment do this or is there something better. It’s for a 10” dob which I usually only use for visual (camera normally on Starguider) but I occasionally see something that I fancy getting a snap of but get fed up with changing everything over/refocusing etc. Many thanks and apologies if there is something obvious I didn’t see on FLO!