Luminous Landscape Forum

Raw & Post Processing, Printing => Digital Image Processing => Topic started by: zaku2 on December 26, 2011, 01:41:44 am

Title: What can I do with the noise pattern and broken bokeh?
Post by: zaku2 on December 26, 2011, 01:41:44 am

I am a newbie of this forum. I hope I have place this question in the right place.

Below are my image taken by Canon 60D (setting ISO 640, F4.5, 1/250s)
This is not the first I encounter such kind of pattern in a photo.
You may find the shadow on the elbow (red boxed) that is showing some noise pattern but not a smooth gradient. It is both visible in JPEG or RAW file.
It is not just happened on the shadow part, even the arm with lighter exposure has such a pattern.
It bother me quite some time because I should remove them before printing. I just want to know is it avoidable?
I have set the auto lighting optimizer and noise reduction to standard. Any setting suggestion on this matter?

(https://lh5.googleusercontent.com/-S4yczRaQPdM/TvgMuazrtHI/AAAAAAAAABo/c4819paOowY/s800/IMG_9469_retouch_resize.jpg)

(https://lh4.googleusercontent.com/-Vsq9ofgFU2I/TvgMuMmXCGI/AAAAAAAAABk/v40SKUvXN1Y/s640/IMG_9469_part1.jpg)

(https://lh3.googleusercontent.com/-XN766n2Igvc/TvgMuD0KDAI/AAAAAAAAABg/I4mOO22fjho/s640/IMG_9469_part2.jpg)

The other photo was taken by Sony NEX-3 with a manual focus lens. (Setting ISO800, F2, 1/80sec)
The red boxed part is also quite strange to see the coarse bokeh pattern.
The bokeh is in the mid-tone and highlight range which have less problem on noise reduction.
It should be smooth but it isn't.
(https://lh5.googleusercontent.com/-XFkrmFOO0q4/TvgOMOO8RHI/AAAAAAAAAB8/XfaRkksLYjQ/s800/sssDSC02773.JPG)

(https://lh6.googleusercontent.com/-6TTmgjfBy1s/TvgOL9HamHI/AAAAAAAAAB4/YENoS_kje-A/s800/DSC02773_part1.JPG)

Sometimes, I find it is a common phenomenon that can happen on full frame camera such as
Canon 5D mark II. Does anyone may know the reason?  If it is unavoidable, how can I solve the problem?
I used to use the repairing tool in Photoshop but it seems not a smart way. I think it is worthwhile to discuss.
Thanks for any opinion.
 :)

Title: Re: What can I do with the noise pattern and broken bokeh?
Post by: Walter Schulz on December 26, 2011, 04:47:29 am

Quote from: zaku2 on December 26, 2011, 01:41:44 am

I have set the auto lighting optimizer and noise reduction to standard. Any setting suggestion on this matter?

Turn Auto Light Optimizer off.

Ciao, Walter