shropshire lad

Nobody got any suggestions ??

How do I (in photoshop) stop my stars from bloating when I do my stretching. Any help would be gratefully received

Yes Jim that's the list ... and apparently my Canon 80D is also ISO invariant ....

Ok will do ... have you done any tests for the best ISO to use, I'm never really sure what is best. I saw a list somewhere online for best Iso for different cameras but can't find it now?

Ok thanks Jim for the reply ... think I will try f4 next time I'm out as I agree and get blobby stars myself @ f2.8 and f3.2 .... may even try f5.6

Thats a great result Jim, are you sure it was f4, don't usually get spikes ...... any filters used and you must be in a quite dark sky area? Did you have to crop the image to get this?

Thanks for the reply .... yes it was very small and stretching did bring it out but no clarity really ....... I also imaged the Rosette Nebula same night and that was sooo much better.

No luck really ... am I expecting too much from my Canon 80D (not modded) and 70-200mm f2.8 lens iso 400 in a Bortle 6 area ...... AZ-GTI in EQ mode ..... would the 150-600mm at f5.6 be any better.

Good job done .

Canon 80D ... sigma 150-600mm lens @ 150mm ...... f5.6 ...... Sky Watcher AZ-GTI in Alt az mode. Bortle sky 6 and full moon behind me, so quite pleased 90x20s Images ... no darks or flats.

Dont know how often this happens ( new to astronomy) that Mars and M45 can be captured in the same field of view ...... so thought I would give it a go. . CC always welcome.

Canon 80D .. Sigma 150-600mm ... AZ-GTI in Alt az mode ... 90 x20sec .. iso 800 ...... deep sky stacker and photoshop ... Yes I added the defraction spike as I like the affect .. it gives some balance I think... Agree a bit too sharp and bright, I might reduce it a bit on the original image.

Anyone else use the Canon 80D and tell me what the best iso to use Had another try at Orion Nebula, thought I had nailed the focus but not quite . Can the focus drift with cold conditions ??... Your CC very welcome

I think the saturation increased when I reduced the size for the internet. .. this may be better .

Had another try at Orion Nebula, thought I had nailed the focus but not quite. Can the focus drift with cold conditions ??... Your CC very welcome

Ah I love that seat .. !!

"T Bones" ... I'm on my way ... lol

Or may be in the "Show us your barbie image " .... lol Oh and nice set up you have there. And can I have a burger please

Tried WHN but no joy ... too much light pollution alas.

Horsehead Nebula ... Flame Nebula ...... Witches Head Nebula ............ all in Orion.... First two close by the left hand belt star Alnitak ....... and last one close to Rigel ... bottom right star in orion .. this is the one I am trying for as we speak.

Aurora watch is showing that it's possible to see them tonight in Scotland and the Shetlands for about an hour each side of midnight.

Ah Sorry Michael I only post some of my finished images on there, and as you can see I haven't been doing astro very long...... I am very grateful for your help though.

It probably was a focus error, unfortunately I have reformatted the memory card as I gave up on it.... but will have to keep an eye on my focussing and trails ...... I have a lot to learn on this astro stuff, only started in December but you guys/gals are helping me along. Freddie said " Changing exposure will not improve focus!" ... yes I understand that, ...... I was wondering though if my images were overexposed the stars would just get lost in the background. Also it was quite a bright moon in the vicinity and some whispy cloud about so may be that didnt help.... also Bortle 6/7

Ah ok ... might it be that the exposrue is incorrect ... e.g too bright

Ok Thanks. My flickr link is to my flickr images regardless what they are ... is this not allowed.