Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Learning
Post Processing
Ahhh! Grainy photos due to high ISO
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="pforsell" data-source="post: 677008" data-attributes="member: 7240"><p>Do you have any examples to share? </p><p></p><p>The ISO setting itself doesn't <strong>cause</strong> grain, it is the lack of light that creates noise. Lack of light might be caused by a low exposure or low ambient light level.</p><p></p><p>To create noisy images in broad daylight the shooter would need to set a very small aperture and a very fast shutter speed, for example f/16 and 1/8000s using manual exposure mode. Is this what happened? In this scenario the camera would choose ISO 8000 to make a "properly" exposed shot if auto ISO is enabled. It's noteworthy that if the camera had used any <strong>lower ISO</strong> there would be even <strong>more noise</strong> in the images.</p><p></p><p>About the noise, how will you use the photographs? I myself never do any noise reduction because it destroys details. When I do prints, the noise just disappears. Ink on paper behaves differently from on-screen pixels. Ditto for online images, when I reduce the image to web size the noise is strongly suppressed. I very much prefer the little remaining noise over smeared details. Your tastes may differ. </p><p></p><p>I suggest you verify that the noise actually is bothersome, before doing detail-destroying noise reduction. Do this by analyzing the end results, not highly zoomed images on screen.</p></blockquote><p></p>
[QUOTE="pforsell, post: 677008, member: 7240"] Do you have any examples to share? The ISO setting itself doesn't [B]cause[/B] grain, it is the lack of light that creates noise. Lack of light might be caused by a low exposure or low ambient light level. To create noisy images in broad daylight the shooter would need to set a very small aperture and a very fast shutter speed, for example f/16 and 1/8000s using manual exposure mode. Is this what happened? In this scenario the camera would choose ISO 8000 to make a "properly" exposed shot if auto ISO is enabled. It's noteworthy that if the camera had used any [B]lower ISO[/B] there would be even [B]more noise[/B] in the images. About the noise, how will you use the photographs? I myself never do any noise reduction because it destroys details. When I do prints, the noise just disappears. Ink on paper behaves differently from on-screen pixels. Ditto for online images, when I reduce the image to web size the noise is strongly suppressed. I very much prefer the little remaining noise over smeared details. Your tastes may differ. I suggest you verify that the noise actually is bothersome, before doing detail-destroying noise reduction. Do this by analyzing the end results, not highly zoomed images on screen. [/QUOTE]
Verification
Post reply
Forums
Learning
Post Processing
Ahhh! Grainy photos due to high ISO
Top