Registar

[gregbradley]

I recently bought Registar for the purpose of using data I have taken in earlier imaging session with different scopes/cameras with recent imaging data.

It works very well.

So if you keep your data from previous years and some of it is high quality then you can get your 10-20 hour image a lot easier by adding it all together with Registar.

I just did this with Galaxy NGC6744. I had 13 hours of recent data but anotehr 6.5 hours from 12.5 inch RCOS data that got added giving over 20 hours total.

Opens the door to several other images where I have mutiple images of the same object with different setups.

Suits those who change their setup a lot.

Greg.

[rat156]

Hi Greg,

If you buy the CCDIS plugin for CCDStack, you get the same functionality in CCDStack. The Registar program is good at registering pictures, but CCDStack allows you to do so much more, and there's one less program to push all your data through.

Also if you already own CCDInspector, that installs the CCDIS plugin into CCDStack.

US$290 for CCDStack and CCDIS, $380 for CCDStack and CCDInspector, $90 for the CCDIS plugin alone.

US$149 for Registar.

Horses for courses, but if you already own CCDStack or CCDInspector, buying the other gets you so much more than a star registration algorithm.

Cheers
Stuart

[AlexN]

Originally Posted by gregbradley

Suits those who change their setup a lot.

I think I need to buy Registar... I've been pondering it for quite a while.. and being that I've had 5 cameras and 13 scopes in the past year and a half, I dare say it would be worth my while! hahaha!

I think im sticking to this setup for quite some time, but the advantages of Registar are still worth while.. I image Ha from home and OSC from dark sky weekends, I sometimes have trouble aligning the Ha lum to the OSC image.. Registar will take care of that for me.. Not to mention that my setup is not permanent, so sometimes the camera angle will be slightly different etc... I really need to create reference marks on the drawtube of the focuser and on the camera in order to get it close as possible as often as I can... especially with the couple of megadata projects i have in the pipeline for this year and next...

[avandonk]

RegiStar can also be used to make identically sized images with exactly the same content by setting the reference image weight to .0001 (right click on the image after registering and then type in .0001) and then average combining.

These images can then be split into RGB if OSC and then you can combine your HA and O3 into each color channel along with the RGB.

I also use this to make identical aligned images differing only in exposure for EasyHDR.

If stacking noisy images tick the either of the noise settings because RegiStar is also very good at stacking noise.

Registar is also great for mosaics.

There are more tricks. I could not process without it.

Bert

[loc46south (Geoffrey)]

Hi Greg - I use MaximDL and Astometric align - does the same job.

[TheDecepticon]

Could you expand on this a bit please, Geoff?

[multiweb (Marc)]

I got the three programs too and I process everything in CCDStack. I just love its DDP implementation and data rejection process. I have to admit though that CCDIS has let me down in numerous occasions. It seems to rely on the previous star pattern and works its way up from one sub to the other incrementally but if one sub happens to be way out of alignment from the previous one then it fails miserably and all subsequent subs will not align. Having said that some time re-ordering the subs or not including the problem sub in the alignment process resolves the problem. Registar on the other hand will align pretty much anything to anything even if the resolution is different and it will also warp the pictures to match, which CCDIS doesn't do. The latter only translate, scale or rotate.

Originally Posted by rat156

Hi Greg,

If you buy the CCDIS plugin for CCDStack, you get the same functionality in CCDStack. The Registar program is good at registering pictures, but CCDStack allows you to do so much more, and there's one less program to push all your data through.

Also if you already own CCDInspector, that installs the CCDIS plugin into CCDStack.

US$290 for CCDStack and CCDIS, $380 for CCDStack and CCDInspector, $90 for the CCDIS plugin alone.

US$149 for Registar.

Horses for courses, but if you already own CCDStack or CCDInspector, buying the other gets you so much more than a star registration algorithm.

Cheers
Stuart

[Octane (Humayun)]

IRIS is free, and it does everything (no problem with registering images taken from different equipment). Stack as per normal after calibrating and registering.

Of course, you have to learn how to use it.

Regards,
Humayun