Canon T7i/800D - I've worked using an intervalometer for astrophotography for several years without an issue, so I know all the various settings to use. I have 2 intervalometers - one wired, and one wireless, and both have worked without issue for several years, and I've taken hundreds (possibly thousands?) of pictures over the years.
On my attempt last night, the camera did not recognize either intervalometer. The intervalometers behaved as usual (numbers displayed, length of image counted down...etc), but the camera shutter (mostly) didn't operate. I say mostly because on 2 or 3 occasions (out the 40+ attempts I made), the camera responded and the shutter opened, but for random lengths of time (approx 10s, 20s - but not the actual length of time that was in the intervalometer - 90 s). However, mostly there was no reponse. For info, all batteries were changed for brand new, and the camera was operating from main on a dummy battery...so no power issues. I'm thinking "send to Canon", but am just curious if anyone else has experienced this, and what was done? Thank you.
