Help needed with DS...
 
Share:
Notifications
Clear all

MAY 4 2026: APP 2.0.0-beta44 has been released !

New improved internal memory controls should now work on all computers

May 1 2026: APP 2.0.0-beta43 has been released !

Improved internal memory controls (much more stable and faster on big datasets), fixed CPU image viewer, fixed Narrowband extraction demosaic algortihms.

Apr 29 2026 APP 2.0.0-beta42 has been released !

New improved Normalization engine, Fixed random crashes in integration, fixed RGB Combine & Calibrate Star Colors, fixed Narrowband extraction algorithms, new development platform with performance gains, bug fixes in the tools, etc...

Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options

Update on the 2.0.0 release & the full manual

We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.

Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.

 

Help needed with DSLR calibration frames

3 Posts
2 Users
0 Reactions
2,724 Views
(@dan-archer)
Main Sequence Star
Joined: 7 years ago
Posts: 22
Topic starter  

I am after some sound advice on what I am doing wrong with my DSLR calibration frames. I have used dark frames with the same ISO and exposure length (temp very close), flats the same ISO with histogram peak between 1/3 to 1/2, a master bias of same ISO and I still have these dots on my integrations. Looking into the lens on my scope I can see these dots on it, I believe they are dried droplets where dust has settled. I thought my flats would correct these? Is anyone kind enough to advise me on what I am doing wrong? I have so much good data that I want to process however I just can't seem to get rid of these dots.

Here is a link to the integration result https://1drv.ms/u/s!AizlV9aqtkAaoXjT0_dclAp4Q6x3?e=aqDreL

Thank you so much in advance!

Daniel

Rho Complex New RGB session 1 mod

 



   
ReplyQuote
Topic Tags
(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Hi Daniel,

So would you be able to clean the optics? That will help a bit already. Flats also should reduce this and it looks like they weren’t actually applied or something with the flats data is not right still. You can see if it is applied by loading a single light frame and your masterflat. On top of the screen you select “l-calibrated” and APP should correct the light with the flat. It also shows up in the list below, your light frame will have the flat tag added to it. Do you see an effect?



   
ReplyQuote
(@dan-archer)
Main Sequence Star
Joined: 7 years ago
Posts: 22
Topic starter  

 @vincent-mod you are right for some reason the flats were not being applied. After deleting the masters and re calibrating, everything works as expected again. Thanks again Vincent, and yes I have also since cleaned the optics 😆 



   
ReplyQuote
Share: