Test run of the ZWO Atmospheric Dispersion Corrector on Jupiter
After some research into Atmospheric Dispersion Corrector (ADC), I took the plunge and purchase a ZWO 1.25" Atmospheric Dispersion Corrector from Optic Central.
The device does not come along with any instruction or manual but with the knowledge gleaned from the web I was able to set in up with little trouble, mechanically. As for tuning/adjustment, FireCapture comes with a convenience ADC Tuning Tool which makes the job fairly easy. The aim with this tool is to adjust the prisms on the ADC to minimise the red and blue misalignment cause by the light of Jupiter passing through the atmosphere.
In practice what I notice is an improvement in the colours of Jupiter particularly the "Great Red Spot". This was more clearly defined as and orange ovel.
As this was a test run weather was not too much of a concern, I think the Jetstream was about 126kmph not great. Equipment as usual was the Meade 12" LX200, ZWO UV/IR Filter, 2x Powermate, ZWO ADC (New) and ZWO ASI244MC. Processed through AutoStakkert, wavelets in Registax, tweaked with GIMP.
May have been a bit heavy handed on the processing but there looks to be a bit more detail as opposed to my previous efforts without the ADC. The three moons are, Callisto above the South Pole, Ganymede and its shadow and Io halfway between GRP and Ganymede's shadow.
Enjoy.
Here is one of my efforts from last night test run.
Anthony,
Looks like the chromatic aberration has been minimised. Nice colour presentation throughout the surface. I would have thought that by post alignment of the RGB would have produced the same result but there clearly is a better result obtaining correct alignment from the capture itself.
Good that you were able to work out how to use it in the first instance as the result speaks for itself.
Congrats on you new acquisition and hope it brings satisfaction for further images with the planets.
Nice pic of Jupiter and moons and the GRS all in the one hit. I had a go also but my obs walls were just to close to the 30deg elevation that Jupiter was transiting. Seeing was sub standard for the occasion but did notice at the zenith things improved.
Keep up the planetary work Ant/ and keep a close eye on Mars with oppo nearing.
A
