[Octane (Humayun)]

Tony,

Thanks for your compliment.

I was wondering to myself, why, even after a 2-minute sub-exposure there was no red, but just an overwhelming blue. I will have to try again some time with a UHC-S filter.

Thanks for posting your image; they've lovely as usual.

Regards,
Humayun

Originally Posted by Itchy

Hi Humayun

Very nice image.

The strange thing about the tarantula and unmodified cameras is that you get no red response at all. Other objects always display some red in them (eg lagoon) but the tarantula shows none. I haven't figured that out yet.
Interestingly you can get some red out of it by using a filter. Here is my tarantula with an unmodified camera and a Baader UHCs Nebula filter:

http://www.itchysastro.net/Tarantula20x3iso200Web.jpg

The same shot after considerable colour processing:

http://www.itchysastro.net/Tarantula...00ColCorlx.jpg

And my first attempt at it without a filter. No red at all.

http://www.itchysastro.net/tarantulaweb1.jpg