| Author | Thread |
|
|
11/10/2003 07:34:00 PM · #1 |
Photoshop CS now has 16 bit editing. I've had a play with it and although I know it must be better, I can't see anything different.
Fow web publishing at least, such as on DPC, where things are limited by your monitor, is there any point at all in working in 16 bit mode?
Does it matter what camera you have?
Is it worth it for the extra file size, and thus longer working time, more storage etc?
I would imagine that working in 16 bit mode and then converting to a .jpg for DPC Prints for instance is meaningless.
Anyone cast any light on this for me?
|
|
|
|
11/10/2003 07:39:06 PM · #2 |
| it's not completly meaningless. By converting to 16 bit as your first editing step, you can avoid "banding" when playing with certain functions repeatedly (levels, curves, hue adjustements, etc). I'm sorry i dont have an example at this moment, but i's been helpful for me in the past.. |
|
|
|
11/10/2003 09:38:23 PM · #3 |
Typically your camera produces 10bit or 12bit images.
If you use JPEG mode, these are automatically compressed down to 8bit colour (losing some subtle tonal ranges)
If you then go on to manipulate things, doing levels or curves adjustments or similar, you are effectively stretching and compressing the colour information in the image. Working in 16 bit mode during this means there is a wider range that this information can be moved around in, until you finally compress it down to 8 bit mode.
So, if you don't do much in the way of changing colours, brightness, contrast or anything else that adjusts the image histogram, there isn't much point working in 16 bit mode. If you do tend to make changes, 16 bit mode means you will preserve more of the subtle tonal range within your image while working on it, so that you'll get the best possible result when you either print or save as an 8bit JPEG for the web. |
|
|
|
11/10/2003 09:40:34 PM · #4 |
Gordon, that's about as clear an concise an explanation of this as I've EVER seen. Glad I did not reapond first, since my response would not have been nearly as clear.
|
|
|
|
11/10/2003 10:21:51 PM · #5 |
Yup, I agree with Kirbic there (not that I knew the answer).
Great explanation Gordon, and now I can see when it will indeed be worth using 16 bit. Thanks also Refracted.
:)
|
|
|
|
11/10/2003 10:26:04 PM · #6 |
wow, thanks Gorodon, I actually understood what you said!
I've been wondering this also.
|
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 08/29/2025 07:31:02 PM EDT.
