M81+M82 - sort of

[mickw]

Got my ounces mixed up with my pounds last light and did 16x6mins - hopelessly overexposed - guiding not too shabby though
Anyway this is the best I can wring out of the stuff that wasn't burnt out.
Still at least it shows the setup works

[Fay]

Very good Mick, guiding indeed not shabby!! You are like a terrier with a bone now, no stopping you!

Not sure why 6mins would be overexposed, were they 800 ISO? Canon subs do come up pink & you can hardly see what is on there, they are so light, but it gets sorted when stacked & opened in PS, so don't throw any away

[Carole]

Well done Mick.  I agree with Fay about the exposure length and appearance of the subs when you first do them.

Carole

[The Thing]

Hi Mick,

This is looking good, about as good as I've been getting.

You can tell if a sub is well exposed by looking at the histogram (APT has one). If the main lump is in the middle somewhere you are doing OK I think (that's what I aim for). As long as the lump is not at either end you aren't losing anything. That's my technical take on exposures! And I think the ladies are right, in London, pink and washed out is in! (for subs anyway).

[mickw]

Thanks, but anything good was down to luck - this is what I started with
16x6min subs at 800 asa



I managed to ignore the histgram and the fact that the "preview" was bunt out

[mickw]

OK, brain now functioning and beer free.
All the clues were there - very light preview and a misinterpreted histogram.
The histogram was showing the peaks smack in the centre - unfortunately the centre of the right hand column, I assumed each column was for a seperate exposure (only available in LiveView  ), that assumption was obviously wrong.

I thinks it's time to get a decent image and stop making dumb mistakes - I may possibly have just killed the fine weather 

And ladies, there was no pink - blokes don't do PINK 

[Mac]

can you post a raw sub please.
or a link to one.
Mac.

[mickw]

Picassa rejects Raw files and I don't think the gallery would survive a 13 meg file either.

Could try emailing one ?

[Rick]

If it's not a displayable image (gif, jpg or png) then the gallery should cope with it. Robert managed to upload a 17MB tiff, and the limit's set a bit higher than that, but I expect the actual limit may depend on the server. The gallery should accept .raw files. Just make sure you stick it in the Raw data files bit...

[mickw]

No it doesn't like .CR2 files - "Forbidden File Extension"

Converted to RAW in Irfanview - hope it works and I hope I've put the right link below

http://gallery.orpington-astronomy.org.uk/displayimage-1104.html

[mickw]

Doesn't appear to be working

[JohnP]

Image looks good to me. Colour & detail showing well. Guiding still needs tightening up a bit but getting there. Well done - John.

[Fay]

Conversion Should work ok with Irfanview

[mickw]

Thanks John but I think I could have done a lot better with better capture.

Fay, it looks like it's OK but I don't know how to download it as a file now I've got it in the gallery

[Mac]

You can E-mail it if you want.

Mac.