Creating Master Fla...
Clear all

19 June 2021: Our upload server has been migrated successfully to our new office with higher upload and download speeds (nearly 10MByte/sec up/down ) ! We now have 1 general upload user called: upload with password: upload. The users upload1 - upload5 have been disabled.

31 May 2021: APP 1.083-beta2 has been released ! APP 1.083 stable will follow soon afterwards. It includes a completely new Star Reducer Tool, New File Saver Module, Improved Comet registration and much more, check the release notes here!

DOWNLOADS are available HERE!


Creating Master Flats  


Hydrogen Atom Customer
Joined: 7 months ago
Posts: 1
March 22, 2021 11:36  

Hello, I'm new to APP and in need of help please


APP Flats

I've just created or tried to create Master Flat/Dark/Dark Flat

Not sure if this is how my flat should turn out?

When I was creating my flats I was aiming around 32k on the histogram

any advice/tips/point in the right direction would be greatly appreciated

Universe Admin
Joined: 4 years ago
Posts: 3694
March 22, 2021 11:51  

On the right-hand panel you see a dropdown menu for the stretch (it says 15% BG now), change that to "no stretch" and then check the histogram, that shows you the true exposure. Does look like you used a filter maybe?

ps. I would also add more memory to APP by going to "CFG" on the top left, increasing that to something like 16GB and restart.