Astronomik H-Alpha CCD 12nm Clip-Filter thoughts?

[astroimpulse]

I've just been talking to the other-half about one of the last things I'd like (for the time being) for my set-up, which is a quality H-Alpha filter.

She asked "how much" and I said "£150". She didn't bat an eyelid so I asked "how much did you think they'd be?" She said "£700"!

So I've taken it as a green light

What's people's thoughts on these (if you've used one)? Should I go for a tighter passband or will 12nm give cracking results like some I see here?

My 450D is unmodified atm but will be when I get the time.

Thanks in advance

[astroimpulse]

I would have thought someone would have been using this. Maybe the Baader is the popular choice?

I've searched but it's all question threads.

[astroimpulse]

Went ahead and bought it

Couldn't risk the other half changing her mind.

I think that's me done for big spending

I'll post my findings as soon as the weather improves (hasn't for the past 4 months).

[Rob_Jn]

Hi Sy, which one did you get?

The 7nm will require a longer exposure to get a smooth background but overall will give a better result. I have the 12nm Astronomik which gives excellent results but with a CCD camera. Your 450D will need modding of course before you can use the filter.

Rob.

[astroimpulse]

Hi Rob,

I went with the 12nm as the 6nm is expensive and according to the very helpful Bernard at Modern Astronomy...Astronomik are currently sorting a mod to their 6nm line So they're a few months from ready. I'd have been gutted spending £250 on the 6nm only to find out a new/improved version was coming soon.

So thanks to Bernard for that one

And yeh...mod to the camera needed. This is why I've also bought the Baader replacement filter

Gonna do it myself. What can go wrong!

[Glasspusher]

Looking forward to seeing your results, I have been thinking about one of these for some time to use with my self modded 1000d.

John

[Axeldude]

Hey Astroimpulse, any chance you will be posting results here?

Thinking of buying the 12mm myself

[studdedsole]

On a similar vein this might gives you a view on what might be achievable, I have the 12nm but haven't tried it yet, I will be well chuffed if I can get near Mel's output