Author Topic: Background intensity values  (Read 1175 times)

Offline Zocky

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Background intensity values
« on: 2014 January 07 12:17:25 »
Hi all!

Can someone help me to understand this values?
Back in Photoshop black had intensity 0, white 255, and I was aiming to have my background around 25 to 30. 
In PI those values are represented with numbers 0,000 to 1, is that correct? So for what value I have to aim for ideal background, and how are this numbers correlated to those in PS?
Skywatcher ED 80/600 with FF/FR x0.85; HEQ5-pro mount
SBIG ST-8300M, FW5 with Baader LRGB Ha7nm filters
https://www.flickr.com/photos/zoran-novak/

Offline pfile

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Re: Background intensity values
« Reply #1 on: 2014 January 07 12:55:34 »
25/255 = about 0.098

Offline Zocky

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Re: Background intensity values
« Reply #2 on: 2014 January 07 13:04:16 »
Tnx :)
Skywatcher ED 80/600 with FF/FR x0.85; HEQ5-pro mount
SBIG ST-8300M, FW5 with Baader LRGB Ha7nm filters
https://www.flickr.com/photos/zoran-novak/