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.
Hi everyone
I recently bought a asi 294 mc pro for my Ts Apo 100q/580 refractor. Great Camera...but i experience an artifact which seems to be 'common' for this type of camera. (Sony, smos?) Rare diffraction anomaly with bright stars, but not all. cfr picture. Integration Iris Nebula of about 6h. But you see it clearly in every light. Googling shows me not a lot of solutions.
Anyone experienced the same. And is there a way within Astro Pixel Processor to get around it?
Thanks Clear skies
Â
Guido
Â
I have the same camera and have never seen that effect ever it actually isn't common I don't know where you got that from.
Were you using a filter or any other thing like an oag? that looks like some sort of weird obstruction in the image train that has caused that effect.
Thanks for answering Nick
If you Google the terms you will see it is not so rare.
https://www.cloudynights.com/topic/728522-asi294mc-pro-sensor-issue-any-ideas/
See the link above. Same star ...same camera.
Strange anomaky
Clear skies
Guido
it is an issue with the 1600 series of cameras not the 294 which is what has also been said on those forums I asked about your image train
Seems not only an issue with the 1600 series...several users of 294 mc pro had the same problems i read yesterday on a Fb group for zwo cameras. UV IR cut filter should be the solution.
You still havent mentioned your image train, this is important.
Zwo Asi 294 mc pro + focal adapter (no reducer and no flattener) +Ts apo 100q/580 refractor. No filters used. I hope this is what you mean with image train?
No filters means you will get some bad blooming which could give that effect, you need at the very least uv/ircut or a decent light pollution filter like the Optolong L-Pro. you mention a focal adapter, isnt that like a flattener?
The focal adapter could be the cause of that artefact. I hVave never seen it on the 294 and I've been a member of the asicameras facebook group for many years.
I used to have a 294MC Pro and had exactly that issue with a number of different optical trains, an SCT both with and without focal reducer and two different refractors (One cheap and one not) I would not say it is uncommon, but if you already had suitable filters you would just never see it.
A UV-IR cut filter resolved it in all instances. The ZWO one for the image trains that filter suited, and an Astronomik L2 filter for the SCT. If ZWO made a UV-IR cut window for the 294MC Pro it would be the neatest fix, but they have never made one in that diameter unless one of the newer cameras has the same window size and they make a UV-IR cut one now.
