Todd Stephens is a very accomplished Astrophotographer who has had no less than 3 of his images awarded IOTD on Astrobin - quite an accomplishment. All three of these IOTD's are for widefield images of dust clouds and they are quite simply wonderful images.
Todd has very generously allowed me to put his data for a new image, which he has only recently completed, up for our monthly challenge. This is a very small jpg of the image.
You can see the full res image, and his other fantastic images, on his Astrobin page here
https://www.astrobin.com/users/FrostByte/
The image was the result of
over 26 hours of data taken with a AT60ED (0.8 reducer) and a Canon 600D (It will solve for PCC at 288mm
FL and 4.3 micron pixel). I believe it was taken in a very dark sky.
I've made it available as Todds original untouched fits straight out of
APP and I've also save it as tiff for out Photoshoppers. I've saved both 32b unsigned and 16b this time as I think it would be worth doing initial stretching at 32 bit before completing at 16b.
Files are here
https://1drv.ms/u/s!Alj6NhuYfZtW9Q12xAB ... X?e=XXoxHe
So Download what files you want and process in your software(s) of choice then post in this thread. The purpose of the
APP Challenge is to share techniques so we can all learn and grow in our abilities so please describe your process steps and any special tricks you used to get your result. If you have been finding something difficult to do with this data - tell us and hopefully someone will be able to help.
Obviously if you want to show it anywhere other than on this thread please fully credit Todd Stephens.
Todd has said he is interested to see what others do with it so I'll send him a link to this page. So best foot forward please
Enjoy the challenge - its a tough one but a great data set.
Scope: Skywatcher Evostar 80ED (SW 0.85 FR/FF) on a SW NEQ6Pro
Guiding; SW Evoguide 50ED, ASI 120mm mini
Meade 8" LX200 GPS on wedge (Guided with a cheapo 50mm guidescope and a ZWO ASI 120mm mini)
Sharpstar 61EDPH II (with dedicated 0.8 reducer) with wiliam Optics 32mm uniguide
Camera: ASI2600MC pro. QHY 163M with ZWO 7nm NB filters, Canon EOS700D astro mod
Secondary mount: Skywatcher StarAdventurer
My Astrobin
https://www.astrobin.com/users/mackiedlm/