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RGB Filters for Atik 314L+Mono?

Astrosurf

By Astrosurf
in Imaging - Discussion

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Astrosurf

Astrosurf

Posted
Posted

I've been given advice on what manual filter wheel to get here:

http://stargazerslounge.com/topic/225487-cheap-filter-wheel-for-atik-314l-mono/

Now I need some RGB filters. I want second-hand or new on offer but don't know where to start. Can anyone give me links to any good offers and second-hand filters on the Web at the mo? In the UK of course! I'll check too.

Alexxx

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swag72

swag72

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Keep an eye out on ABS and see if you're lucky enough to get a set of Baader one's. They're a good set of RGB filters - Make sure you get the rights ones though http://www.firstlightoptics.com/rgb-filters-filter-sets/baader-lrgbc-ccd-filter-set.html and not the cheaper Baader ones that aren't suitable for imaging as far as I am aware.

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Uplooker

Uplooker

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Yes, those are one of the sets. I think those 1.25" ones are of a slightly older type, not bad one tho. If you have a look again you should see some 2" RGB filters that are an update by Baader. If you got the 2" ones you would still need an L, so that might mean the deal is not as attractive. I think the difference is that the newer ones block IR.

Hopefully someone who is more experienced in such things will be along shortly to give better advice. I don't own any yet myself ;-)

Ian

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Uranium235

Uranium235

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+1 for the premium Baader LRGB filters (nothing less will do). While youre there, get an Ha filter for the last filter slot (for times when LRGB isnt possible).

As for the FW, I have the Brightstar 1.25" and 2" - both have been excellent (thickness of both is 21.5mm), and all the positions are numbered so its quite easy to remember where each filter is.

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ollypenrice

ollypenrice

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There is no difference between the 2 inch and 1.25 so far as filtration goes and with a small chip you don't need the big ones. If you have the 314L just go for the 1.25. I love these filters and prefer the colour ones to the Astrodons. Heresy but there you go. I've used both. Do buy an Ha though!

Olly

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swag72

swag72

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Here's another thought for a little further down the line - instead of the luminance filter use a light pollution filter. I use my Hutech IDAS in the luminance slot. Gives me a much better luminance than the luminance filter!

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ollypenrice

ollypenrice

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Here's another thought for a little further down the line - instead of the luminance filter use a light pollution filter. I use my Hutech IDAS in the luminance slot. Gives me a much better luminance than the luminance filter!

Not daft.

Erm, light pollution? Remind me...

:grin: lly

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Astrosurf

Astrosurf

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Thanks guys. Your advice is excellent as usual. I'm groggy-headed tonight and can't think straight, so are the eBay filters the ones? They all look a bit different to me in different adds. This is so new I feel like a beginner again! What I really wanted was one of you guys to give me a link and say, 'Buy it!' :grin:

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Uplooker

Uplooker

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My apologies Astrosurf, Olly is correct as usual there is no difference between those 1.25" & 2" filters. :embarrassed:

I for one say BUY BUY BUY on the filters and BUY BUY BUY on the FW :grin:

There, does that make you feel better and less guilty :grin:

Ian

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ollypenrice

ollypenrice

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My apologies Astrosurf, Olly is correct as usual there is no difference between those 1.25" & 2" filters. :embarrassed:

I for one say BUY BUY BUY on the filters and BUY BUY BUY on the FW :grin:

There, does that make you feel better and less guilty :grin:

Ian

My wife would be interested in the 'as usual' there. To the best of her considerable recollection the only occasions on which I've ever been right have been when she's told me what to say and, exceptionally, I've remembered and got it out correctly...

Olly

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lensman57

lensman57

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Posted

I've been given advice on what manual filter wheel to get here:

http://stargazerslounge.com/topic/225487-cheap-filter-wheel-for-atik-314l-mono/

Now I need some RGB filters. I want second-hand or new on offer but don't know where to start. Can anyone give me links to any good offers and second-hand filters on the Web at the mo? In the UK of course! I'll check too.

Alexxx

I don't want to go against the trend but unless you enjoy dark prestine sky then you  should stay away from LRGB imaging.

A.G

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lensman57

lensman57

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Would care to elaborate?

Ian

You really do not want the R and G filters helping the LP that we all suffer from if we are not imaging in the dark zone. Putting an LP filter on top of everything else is just defeating the object of the exercise.

In a heavy LP zone a good LP filter and a sensitive OSC camera might be a more practical proposition. Olly's RGB images and some of the others are truly lovely but without access to a true dark site that kind of quality is not achievable. I am only expressing my own opinion and as I have two sets of RGB filters from the usual suspects I have no axe to grind.

Regards,

A.G

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Uplooker

Uplooker

Posted
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You really do not want the R and G filters helping the LP that we all suffer from if we are not imaging in the dark zone. Putting an LP filter on top of everything else is just defeating the object of the exercise.

In a heavy LP zone a good LP filter and a sensitive OSC camera might be a more practical proposition. Olly's RGB images and some of the others are truly lovely but without access to a true dark site that kind of quality is not achievable. I am only expressing my own opinion and as I have two sets of RGB filters from the usual suspects I have no axe to grind.

Regards,

A.G

Hi A.G,

Don't get me wrong, I didn't think you had any axe to grind, just curious to your thinking. I agree that a darksite / sky is generally the biggest improvemt that can be made to any visual or imaging astronomy. That said, sometimes you just have to do the best with the cards you are dealt.

Ian

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RikM

RikM

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I don't want to go against the trend but unless you enjoy dark prestine sky then you  should stay away from LRGB imaging.

A.G

I don't see how it can make the slightest difference if you have big colour filters in front of the chip or little ones in front of each pixel. I use LRGB filters from a moderately light polluted site and yes it is far away from the results possible from a dark site, but still miles better than I could achieve in the past with a DSLR. I don't see how a OSC CCD will be any different compared to mono + LRGB other than the OSC will be slower and the processing will be harder. Going for a mono camera also gives you the flexibility to get the best out of narrowband filters as an alternative.
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