peter shah

Thank you Steve Thanks🙂 Thank you.. I love Scorpius. its my favourite constellation....I especially like this region, I have wanted to image this for years.

Thank you Carole

The Blue Horse Head Nebula Imaged with the 105 f1.4 Sigma lens and ASI2600MC OSC 60x 300s exposures a total of five hours. Imaged remotely from Spain, processed with Pixinsight and Photoshop. Thanks for looking Peter Shah

Its a little magenta on my screen but the detail is fabulous

Thats superb

beautifully defined

I don't believe that for one second Olly 😉

another mega deep image Goran...lovely

super shot...I'd love to be able to image this...one day may be

Yes its all controlled internally with the canon protocol via the Ascom driver....no belts at all. The lens is native f/1.4 but I set it to F2.8. I have recently set it to 3.2, I want to see if it helps with what little chromatic aberration is in the lens. I am hoping it will make controlling the stars a little easier when pushing the process.....if not I will just put it back to 2.8.

Thank you Olly, Yes Rigel was a problem especially having pushed the stack so far. The aggressive stretch really added to halo artefacts around it and various other stars I had to repair them as it really made the field very ugly. I'm thinking this is where camera lenses struggle with their multi elements when compared to a good Apo or Reflector. I think I might spend some time doing a separate process on the two bright stars and see if I can convincingly reduce their presence. Thank you.....No the crop was only a few pixels on this one taking up the dither I've set into the mount. I've attached the full frame of the raw stack just shown with a auto screen stretch in PI. (the final image was rotated 108 degrees) Thanks Emil

The Sigma is a Canon fit and its fitted with an Astromechanics lens focusing system which is Ascom compatible. It gives complete focus and aperture control.

beautiful process...lovely colour balance

I like the way you have controlled the core ....lovey work

what a gorgeous image, lovey colour

thats a super rendition....

super job....the jet is clearly visible

Thank you

thank you everyone for the comments

Super shot....good colour and nice round stars

That time of year again....lovely shot....Starnett++ is really good

love that...nice and deep

lovely colour...great shot

Yes...Its a nice lens....I did have to do some work on the stars. As I pushed it down further it was causing the aberrations to show significantly....that's what made it tricky. I am going to stop it down a little more see if will help with it. Thank you Carole....its a very busy area. That little OSC camera is proving to be a bit special.

Beautiful work....stars all the way to the core nice tight and defined