Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
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.
Hello again,
again I have to struggle with overcorrecting FLATS...
first, with only a integration of LIGHTS I got a relatively flat integration result:
(no Flats etc.); f 4 Newton + ASI 2600 MC.
On location I had no dimmer for the flat field panel so I had to take short FLATS (0.1 s)
I could live with that result (without the FLATs) but have some dust spots which I´d like to be erased.
back home I took the identical LIGHTS plus the calibration Masters of that session (above) which returned an overcorrected integration:
Comparing the FITS Header I do need some help - my exposure settings are: ASI 2600 MC, gain 100, offset 50.
the single FLAT frames show a BZERO of 32768 and an offset of 50:
the Master FLAT / DARKFLAT / BIAS do not show an offset :
can this be a part of the problem?
The more I try to tune settings in APP the weirder the results.
update:
1.
I opened the overcorrected looking files in PI - there they are looking okay = pretty flat - not that overcorrection visible.
2.
In PI I could manage to get a good = flat looking result (of a single LIGHT sub) by adding 0.55 to the MasterFlat and correcting the L by the modified MF.
Using that modified MasterFlat in APP even returned a worse result.
3.
Using the identical data set (L, F, D, B, DF) for an integration in PI returned this result
when opened in APP this PI integration also looks much better than the APP result.
I can work with the PI result, not with the APP result.
So why this big difference?
Any suggestions?
thanks, Peter
