Anybody used one of these filters, Astronomik CLS CCD Light Pollution

[simmo39]

Just thinking a head as light pollution is slowly getting worse, after a search I found this filter:

http://www.rothervalleyoptics.co.uk/astronomik-cls-ccd-deep-sky-light-pollution-filter-canon-eos-clip-fit.html

Anybody used one? are they any good?

[gonzostar]

I use one, and would recommend it.  For me it has come up trumps with nebulas especially the lagoon and triffid. Idont think though i would need to use it on planets

Dean

[moondust]

i also use one its very good keep mine in the camera all the time. dennis.

[wxsatuser]

Makes a big difference to sub length.

[jambouk]

Is this the same as the normal CLS filter? I don't recall the "deep sky" definition being in the title when I got mine. It cuts out light pollution from my back garden very effectively, and unless you do a custom white balance it gives everything an off cyan hue.

There were two cersions, a CCD one which I think is for cameras without an IR cut filter, and a non-CCD one for cameras with an existing IR cut filter. But check that.

James

[Michael36]

That money just for a CLS filter dont waste your money get the best Hutech IDAS LPS-P2 google Hutech IDAS LPS-P2 images

to see how the filter crushes all others.

[jambouk]

I think it must depend on what is causing the light pollution, as the CLS filter is more effective in my back garden than the IDAS one. But as I've said before, and still yet to do any tests, I am convinced the CLS filter also cuts out some light from astronomical targets as well as cutting out the light pollution.

James

[simmo39]

Thanks for the replies. Think I need a light pollution filter sooner than later. You have given lots to thin about is there any other ones to think about?

[jambouk]

There is an article on "imaging under light-polluted skies" in the current (Sept-Oct) issue of Popular Astronomy, the journal of the Society for Popular Astronomy (http://www.popastro.com/). It is written by the very entertaining Ian Morison: https://en.wikipedia.org/wiki/Ian_Morison

Besides narrow band, the filters he mentions are:

CLS

Baader UHC-S

IDAS LPS-V4

Orion SkyGlow Imaging Filter

IDAS LPS-L2

James

[michael.h.f.wilkinson]

I have the CLS-CCD on my EOS-450D and it works very well.