Jupiter with and without Baader UV IR cut filter

[rumples riot]

All right, I just came in from a really crap seeing session, very high cloud, but the seeing was steady. So the images you will see are not sharp but they do give some indication of how the filter works. I must say though conditions did change within 3 minutes and I would need to try this again to confirm results. Both shots are taken with colour optimised mode installed.

The first one is without the filter and the tranperancy was a little better. You can if you look hard enough see the white ovals in the STB at the top.

In the second shot the colour is better with the filter and the ovals are still present albeit the image is not as sharp. This is partly because of the cloud and I had to refocus the image very quickly, so I might not have got it spot on or at least the same as the first shot.

Anyway I leave it to your decision as to which you prefer.

[rumples riot]

And the second

[rumples riot]

Maybe this will help the image on the left is without and the one on the right is with the filter.

[iceman]

I can't see any discernible difference, which is the same conclusion i've come to every time I've tried a comparison of IR vs no IR.

I still wonder if it works better on some objects, eg: the moon or mars..

Maybe it just doesn't make that much difference on Jupiter because Jupiter doesn't give off a lot of IR light? I dunno i'm just speculating.

Also having to refocus between IR and no IR means that it could be really sharp focus in one and not the other, which again could sway the results.

Thanks for doing the experiment Paul. We need more of them though, clearly, in order to be able to get a conclusion one way or the other.

[gbeal]

My money is the without one. Ice needs glasses. Thank you Paul. I agree with Ice, it may be more relevant on certain objects than others.

[Comet Hunter]

Thanks for the comparison Paul. Doesn't really seem to have made much difference - a few subtle changes but nothing that really makes the image standout from the other... as the others have mentioned maybe it's better suited for some objects more so then others. :atom:

[toetoe]

I see a noticable colour loss with the filter on Paul. As the guys have said, maybe best suited for other objects. Still has good detail with or without the filter.