Baader vs Astro modifications.

[SilverAstro]

Sorry, I was being a bit careless/fancyfull , old time phrase - to pay a skilled journeyman to do a proper job, an expression from days of yore when pans had copper bottoms.

[Redscouse]

Interesting. Never heard that expression before. 
Had all kinds of images flashing through my mind of coils and transformers etc. fitted to the bottom of my camera! 

[SilverAstro]

2 minutes ago, Redscouse said:

f coils and transformers etc. fitted to the bottom of my camera! 

actually, you were not far off, peeps have been known to fit copper foil/shim 'fingers'/tabs into the back of the sensor and extend out to a cooler, , , but that is a whole other topic !  very clever peeps.

 

[JohnSadlerAstro]

Believe me, once you have had 4-5 hours of about 20 kinks in your back and nerve damage from the terror of modding, you will have had quite enough! Leave any smart cooling systems for another day, it'll save you from losing too many years of your life.

John

[AnakChan]

Just FYI, IDAS has just released a new light pollution suppressor, LPS-D2. This suppresses LED wavelengths along with high pressure sodium. I've just picked this up 3-4 hrs ago and have not had a chance to try it out yet :-

v

Edited February 20, 2018 by AnakChan

[Merlin66]

Unfortunately the broad spectrum LED can't effectively be filtered out.

Where you have transmission bands (Hb, OIII, Ha etc) you will also have background LED light pollution.......

[johngm]

Hi Pete,

All new canon DSLR's have 2 filters. Only the rear filter needs to be removed. I had mine Done by Andy Ellis at Astronomiser who I highly recommend. It cost me £95 including return postage. If you check out his website, he describes in detail what the process involves. the image below was just 30 X 180s exposures taken from my garden with medium light pollution with a CLS clip filter

John

[johngm]

Sorry, forgot to mention, I only used darks, no flats, hence the dust bunny. Skywatcher ED80, Modified Canon 600D,  Only a slight stretching and tweeking in pixinsight.

John

[AnakChan]

11 hours ago, Merlin66 said:

Unfortunately the broad spectrum LED can't effectively be filtered out.

Where you have transmission bands (Hb, OIII, Ha etc) you will also have background LED light pollution.......

If their graphs are to be believed, this is what they've put on their page :-

 

[Merlin66]

Hmmm, that still shows a significant LED pollution in the filter transmission bandwidths.....

 

[LightBucket]

I was under the impression, that version of the Idas filter has been around for sometime...or is it a new version of the older D2 model...? 

[AnakChan]

4 hours ago, Merlin66 said:

Hmmm, that still shows a significant LED pollution in the filter transmission bandwidths.....

 

At least the main white LED light at 460nm is being cut out. Something of which the former LPS-D1 and LPS-P2 did not :-

 

Anyhow, if I get some clear skies, will do a comparison with the my former LPS-D1 and the new LPS-D2, and against the LPS-V4 too.

[neltek]

I am trying to decide which to pay for on a 600D.

Am I right that without the Baader filter I could still correct the colour for daytime use in post processing?