Quatermass

Yes they were incorrect Dave but after changing them to 0 for the min and 1.7 for the max it seems to be working ok again, its a great bit of kit but could do with being a bit more user freindly on the interface front dont you think? Any way so long as it solves now thats ok with me too scared to touch it again now lol

Hooray success, I changed the scale max to 1.7 to test it out and it solved first try brilliant! Thank you thank you

im outside now with the first setting not working so I guess I need to start over again the coma corrector is the 0.9 one yes. Clouding over now, rats never mind I will try those setting with correct index files and see how we go, thank you for helping me on this one, will let you know if I have success later on. Cheers.

Thank you very much Louise I will give those setting a try tonight and let you know if I have any success

Ok I thought I had it sussed but after I got myself a canon 1000D and a coma corrector astrotortilla just will not play ball so could do with some help to iron out what is going wrong. So some details. I have sky watcher 200p and I am using a Modded Canon 1000D fitted with a sky watcher coma corrector for my imaging. I use Backyard eos prof edition for the camera and eqmod to control my HEQ5 mount. I followed the instruction in your tutorial again as best as I could and ended up with the following. my F ratio is f4.5 focal length is 900mm and field of view is 1.41x 0.94 resolution is 1.19/pixel according to the sky at night converter chart. So armed with that info I worked out my narrowest field of view was 0.94 x 20% = 0.188 x 60 =11.28 arcmin and for the widest 1.41 x 20% = 0.282 x 60 =16.92 arcmin I then downloaded index files 4205 which covered 11-16 arcmin and index file 4218 which covered 16.7-23.3 hoping that was correct because I am dyslexic and maths is not my strong point at all. With all that done my setting for astrotortilla where like this After doing all that still now joy it finds about 106 files then tries to solve and fails. Very puzzled by this as it worked great with my canon 350d wondering if its the setting on my canon 1000d to blame but any suggestions would be very gratefully received as I loved using astrotortilla before. Cheers...