I have just removed filter from 350d. UV IR issues help :)

[nebula]

Question - I have just bought a second hand 350d and succesfuly removed filter. I did not take the extra step of implanting a UV IR cutting filter in the camera. I just have a t-adaptor with 2" light pollution filter at the moment. This will be used with refractors. For obviouse reasons I now have alot of Red coming through .

Do I need to buy somthing like a Baader UV IR 2" filter?

Can I leave it how it is and use software to pull out excess UV IR?

What 2" filter would you recomend? I want to take photos of galaxies, star clusters and nebula

I dont want to buy 10 filters as budget doesnt quite stretch there yet but am happy to purchase 1 or 2 good ones.

Thanks

[renormalised (Carl)]

The whole idea of removing the filter in the camera is to make it more red sensitive for astropiccies, but you'll need a clip on IR/UV filter for normal use during the day and such. Goto Bintel and grab a 2" Astronomik UHC filter for astropiccies. They're about $250 and they'll be suitable for what you want. You'll also have to buy an Astronomik OWB CCD (EOS Clip) Type 2 to be able to use your camera during the day.

[Merlin66 (Ken)]

I use a full spectrum (filter removed) modded Canon and don't need any additional filters to use it for family shots. Just create a new Cusstom white balance and it works OK.
The only issue with the 350 mod is you loose the ability to focus using normal camera lenses.

[nebula]

Thanks for respsonses.

Should I do a white balance and use it when I take astropics? I wont be using camera for day time pics.

I have some images that I have used software on to white balance - should I be doing it this way or setting the white balance on the camera? (for astro)

[Merlin66 (Ken)]

You don't use white balance while taking astro images.
The "balance" is achieved by comparison of a star image with a G2V star and RGB corrections applied then.

[nebula]

excellent thanks