PDA

View Full Version : Interesting read-Tone Curves for the Canon 1D(s) Cameras

patch29
Dec-02-2004, 02:11 PM
A friend passed this along about the histogram on the EOS 1 series digital cameras. I have not tried it myself, but it looks interesting and it might get you a better histogram. I do not know if it also applies to the mk II cameras, but a test with different tone curve would probably give you an answer. I just wanted to pass it along to those that are interested.

Tone Curves for the Canon 1D(s) Cameras

The histogram and LCD preview of images taken with the 1 series cameras does not accurately reflect the tonal range available to you when shooting RAW images.

In addition, the default tone curve is applied to JPG images, darkening the shadows, and brightening the highlights.* This might be fine for controlled lighting, but is a disaster when shooting high-dynamic-range scenes.

The curves available *here* allow you to take control of your JPG exposures, and give you a more accurate histogram.
(Please note: after application of these curves, there is NO headroom-the blinking highlights are well and truly *blown*.)


Source with more information. (http://home.earthlink.net/~ladlueck/Tone%20Curves.htm)
dkapp
Dec-02-2004, 08:46 PM
The D70 uses custom tone curves too. It's a great feature, and I use it all the time. There is also software available that lets you apply custom curves after taking the pictures. You can actually see what curve works best on your shots.

Any D70 owners needing help with custom curves, I can post a few links.

Good info Patch. Custom curves can definitely help in some situations.

Dave
wxwax
Dec-03-2004, 01:26 PM
Too scary for me.
jwear
Dec-03-2004, 07:37 PM
The D70 uses custom tone curves too. It's a great feature, and I use it all the time. There is also software available that lets you apply custom curves after taking the pictures. You can actually see what curve works best on your shots.

Any D70 owners needing help with custom curves, I can post a few links.

Good info Patch. Custom curves can definitely help in some situations.

Daveplease do post DK i am liking the d70 a little more now and would like a look
dkapp
Dec-03-2004, 10:19 PM
please do post DK i am liking the d70 a little more now and would like a look

Here is a link to a great D70 resource:

http://nikond70.tk/

Some guy from the dpreview forums put together this site & did a great job.

The D70 is a great camera, but does have some shortcomings. What is your budget for the next camera? What do you currently use?

Dave
jwear
Dec-04-2004, 06:31 AM
Here is a link to a great D70 resource:

http://nikond70.tk/

Some guy from the dpreview forums put together this site & did a great job.

The D70 is a great camera, but does have some shortcomings. What is your budget for the next camera? What do you currently use?

DaveDave I just got the d70 in july and it was oct before i had 1 shot that i was happy with.I am now going to learn this camera, there is a long story or i would now own 20d but the camera store was b/s.You see my post i own one and am not that happy with the camera the only good thing thAt came from that purchase was finding this site .I have learned more here in a short time that i thought i knew for a long time.I also have had help from a few of the folks and have learned alot from just taking a pic for the challenge each time . I will ck out the site oh the lens 24/85 ed 70/300ed even the glass was a rip off .for xmas i am going to get a 200 vr.i have to sell my son but 1 must make a sacrifice for his hobby .:scratch any thing i p/u i will share with you but i have whatched your stuff and i am to far behind you to share what know. thanks JEFF