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Results tagged with noise-reduction
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user 1620
noise is generally undesirable in photography, and many photographers want to try and reduce it when taking photographs. Noise reduction tends to be about preventing noise in the first place, where as noise removal is a description of post-processing techniques for dealing with noise that is in a photograph.
6
votes
Accepted
Is this amount of noise expected, or am I doing it wrong?
This is normal considering the high ISO you are using on that camera. If you look at samples for each ISO with the Canon 7D, yours show more noise than the ISO 1600, similar to the ISO 3200 crop.
No …
- 103k
7
votes
Accepted
What does "green background" means, when related to "vibration reduction"
It is poorly written. Indicated Green Background refers to the list below where lenses models with stabilization are highlighted with a green background like the AF-S 16-35mm in the wide-angle section …
- 103k
0
votes
How to reduce noise shown in LiveView when photographing in the dark?
This is entirely normal and expected. The image is read from the sensor as this is Live-View. Since it is dark, ISO has to be increased in order to give you a decent refresh rate. Otherwise, you would …
- 103k
1
vote
How much does noise reduction let me increase ISO without a visible decrease in quality?
Your intuition is right. As you raise noise-reduction, details get lost too. This means that there is no way to make photos more usable with noise-reduction alone.
What most people do though is apply …
- 103k
5
votes
Issues with dark frame subtraction: Dark frames adding "noise" and changing image color/tint
You misunderstand the purpose of dark-frame-subtraction. While it is a technique used to reduce noise, it only reduces noise that is consistently output from the sensor. Any read noise due to the circ …
- 103k
5
votes
Has low-light ISO performance really improved over the past 3-4 years?
High ISO performance has greatly improved over the last few years but if you scrape the bottom of the barrel you wont see much improvement!
While test results for the T4i are not out yet, if you comp …
- 103k
2
votes
Editing or retaking my shot to maximize sharpness, image quality, and reduction of noise.
Time of day is key. Go back to your location during the appropriate golden hour.
You need to figure out from the orientation of your skyline if that will be in the morning or evening. If unsure, try …
- 103k
1
vote
Accepted
At which point do cameras scale photos down when using quarter sensor resolution?
Commonly cameras capture data using the full sensor which gives full-resolution RAW data which is converted into an image and then downscaled. As a matter, if you select to shoot JPEG+RAW, you do stil …
- 103k