Terrible session ! NGC 3247 HaRGB

[jsmoraes (Jorge)]

Unhappily the clouds didn't give me permission to do my job. Only one light frame !

RGB: ISO 800 - single frame - 240 sec - skeyglow filter
Halfa: ISO 1600 - 5 x 240 sec

No doubt ! Without the Halfa information the photo would be impossible ! The sky was very beautifull ... but the clouds ... those clouds ... I hate them !!!

GSO 305 mm - Canon T3 - RGB: ISO 800 - single frame - 240 sec - skyglow filter - Ha: ISO 1600 - 5 x 240 sec

http://www.astrobin.com/97102/0/

[cometcatcher (Kevin)]

Nice photo, sorry about the clouds. I've had enough of them also.

[jsmoraes (Jorge)]

Thank you, Kevin. My intention was 20 Halfa and 10 light, both with 240 sec, but only 6 Halfa and 1 light was obtained.

And I want try with Halfa in more ISO. Now, I am working with 1600, but I want experiment with 3200.

In fact, the files Halfa only will serve as better red channel. I have more noise in this channel, and when I process any boost, I amplify these noises, too. If I have more red information, only from the places that have red information ... I don't need to boost this channel with intensity.

Perhaps, it will sound better if I talk R+GB, in spite of HaRGB.

That is my goal. And I hope to be well succeeded. Unhappily the clouds aren't giving me permission !