And another............M33!

[Tim]

Seems to be flavour of the month this little beastie.

This is my first real try at LRGB imaging from scratch, and I was so lucky the last night before we left for Kelling to get the last hour of Blue that I needed for it before stripping down the kit and altering the cameras etc etc etc.

Taken with Skywatcher MN190 + SXVF-H9 camera, baader LRGB filters. I posted a test shot a few weeks back, this is what it became. I dont really have ideal skies for LRGB, and I need to determine if the colour filters also need an IR/UV cut in the train in addition, somebody (Daz???) mentioned that they aren't IR blocked, anybody happen to know?

Thanks for looking.

TJ

[Beyond_Vision]

A superb result Tim, great detail and a nice natural colour. The HII regions are looking really good.

Regards

Kevin

[themos]

wow!

[daz]

Yeah, that's a nice one Tim!

I could be wrong, but I don't believe they are UV/IR cut Tim. Perhaps Steve at FLO could check, but the website blurb doesn't explicitly say they are, so I have assumed they are not.

I use a 2" one in the train in mine...

[Parallax]

I've got the cheap(er) Baader LRGB filters, and I can confirm that the RGB are not IR cut. Therefore you do have to have the IR filter in the train for colour.

Steve

[peter shah]

super shot very crisp:cool:

[Tim]

Hmmm, it sort of makes a nonsense of having an IR/UV cut filter then, apart from parfocalising the Lum exposures with the colour (if you are lucky enough to have a fully colour corrected OTA )

[rich_t]

Hi Tim,

Do you have the 'new' LRGB set:

RGB Filters & Filter Sets - Baader LRGBC CCD Filter set

These are IR cut filters? Provided you're using the 'L' filter and not the 'C' one.

Cheers,

Rich.

[Tim]

Yes, that is the set. I am very pleased with them. From that blurb it seems that the Red filter is IR cut, and I would imagine that the Green and blue would block it anyway, but that's a guess. The Clear filter is just for focussing/finding, although I focus each colour anyway.

It is an interesting process to go through each filter on a single bright star using a bahtinov mask.

[rich_t]

I have that filter set, just dug out the packaging they came in, says "UV/IR L-filter" on the label.

Rich.

[prokyon]

Hi Tim,

great image! You captured a lot of details, dark areas and HII regions.

regards

Werner