IMAGE DETAILS
WO Star71 telescope, ASI1600MM camera, Chroma 3nm SHO filters, iOptron CEM40 mount
22 x 600 sec Sii, 24 x 600 sec
24 x 600 sec Darks, 30 Flats, 30 Dark Flats
Acquired with
REPROCESS
ORIGINAL
Steve
Juno16 wrote: ↑Tue Oct 12, 2021 10:14 am Excellent reprocess Steve!
The star halo's have been very nicely reduced!!!
I remember that there was some discussion on the forum about reducing the halos. You don't need to get into details if it was discussed before, but would you mind sharing what process(es) you used in PI to remedy the halo's?
I have an issue with the optical train in my new Sharpstar 61 where the blue stars have significent halo's when imaging in broadband. Not sure if it the scope's optics or the Sharpstar FF/FR, but when I use the L-eNhance, the stars are great. Any pointers would be greatly appreciated!
Nice work!
I understand. Much different situation.STEVE333 wrote: ↑Tue Oct 12, 2021 3:09 pm
Hi Jim - Thanks. I am very pleased at how well the halos have been reduced.
I'm afraid my halo reducing technique won't help for the normal "star halos" problems. My halos are caused by the fact that the Oiii and Sii images have been stretched much more than the Ha image (because they have weaker emissions). This causes the Oiii and Sii stars to be bloated relative to the Ha stars, so, when the three images are combined, the stars have halos! I use EZ Star Reduction on the Oiii and Sii images to reduce the stars prior to combining the three images. This significantly reduces the halo problem.
You may be able to look at your R/G/B images individually to see if one of them has the bloated stars. If that is the case you could use a star reduction technique to better match the star sizes. Just a thought.
Cheers - Steve
Well, the image is a wall hanger for sure You'll have to post a picture of the metal print. I've had to make some adjustments to a couple of images that I've printed before as they print differently from how they look on my laptop screen. Have you had to make any adjustments for metal printing?STEVE333 wrote: ↑Thu Oct 14, 2021 5:58 pm I just ordered a metal print of this picture. The size will be 20" x 30" and comes ready to hang on the wall. The cost (including tax and a 20% discount) was $110. Bay Photo is the company who does the printing on aluminum. The colors are just like a glossy photo! I highly recommend this company because their quality is top notch every time! Can't wait to pick it up.
Steve
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