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Netaddict
Joined: 16 Feb 2011
Posts: 332
Location: Earth
PS Version: CS6
OS: Windows 7 Professional
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 Posted: Tue Sep 27, 2011 11:00 am Post subject: Exposurevs brightness / corntrast |
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I find that the brightness / contrast settings satisfy my needs to the degree that I don't need to use the exposure sliders. Am I missing something by not using the exposure settings? |
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Netaddict
Joined: 16 Feb 2011
Posts: 332
Location: Earth
PS Version: CS6
OS: Windows 7 Professional
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| Posted: Thu Sep 29, 2011 1:48 pm Post subject: |
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So far this post has been viewed 17 times and has got zero replies. Is my question that hard or that stupid? |
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thehermit
Joined: 05 Mar 2003
Posts: 3987
Location: Cheltenham, UK
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| Posted: Thu Sep 29, 2011 4:02 pm Post subject: |
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The latter to be blunt. There is a difference in which application you make the changes to brightness or contrast, RAW makes non linear changes whereas Photoshop not so. In loose terms brightness can be seen as having more of an effect on mid tones and exposure makes a difference on the whole image.
In truth they both make a global difference. It's a subject that Bruce Fraser (RIP) would be all too glad to explain in depth, whereas my time is more limited as is my knowledge. There should be enough reading on the internet though. I still say make your exposure in RAW with the proper clipping points set
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If life serves you lemons, make lemonade! |
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Auieos
Joined: 29 Jan 2010
Posts: 2019
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| Posted: Thu Sep 29, 2011 7:31 pm Post subject: |
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I don't know specifics either, the last thread i posted in swapping a persons face in an image...
Reminded me that sometimes i have to use the the exposure to get a match on a collage that brightness and contrast can't achieve. |
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Netaddict
Joined: 16 Feb 2011
Posts: 332
Location: Earth
PS Version: CS6
OS: Windows 7 Professional
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| Posted: Thu Sep 29, 2011 11:37 pm Post subject: |
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Thank you for both your replies.
I'm talking about Photoshop CS5 and I work mostly with jpeg images. |
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thehermit
Joined: 05 Mar 2003
Posts: 3987
Location: Cheltenham, UK
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| Posted: Fri Sep 30, 2011 4:35 am Post subject: |
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Exposure vs Brightness RAW these guys seem to have a handle on it, basic but easy to understand.
Brightness/Contrast info Just some reading.
I have too much info to really post as it's a surprisingly large subject, whilst seemingly a fairly innocuous subject.
Basics are, Brightness works from middle tones and Exposure evenly distributes based on the clipping points set.
As far as JPEGs go you can take them into RAW if you choose, making any changes is always preferable in RAW rather than Photoshop. Just no layered files into RAW so no trying to take a PSD in.
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If life serves you lemons, make lemonade! |
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