Luminous Landscape Forum

Equipment & Techniques => Digital Cameras & Shooting Techniques => Topic started by: Ray on April 19, 2005, 02:08:30 pm

Title: Stacking images as a way to reduce noise
Post by: Ray on April 19, 2005, 02:08:30 pm

I guess the flaw you're referring to is the need for a staionary subject and tripod for alignment purposes; in which case, why not take one long exposure.

I believe stacking for noise reduction is useful in astrophotography where a long exposure might not be possible due to the movement of our earth.

Title: Stacking images as a way to reduce noise
Post by: BJL on April 19, 2005, 07:03:42 pm

For increasing dynamic range with high contrast, stationary subjects, the method of blending described could be useful. However the benefits of taking three ISO800 images of a stationary subject in order to match the noise levels of a single ISO400 image is lost on me!

Title: Stacking images as a way to reduce noise
Post by: Bobtrips on April 19, 2005, 11:42:09 am

I ran across this article which some may find interesting...

Stacking images (http://users.zoominternet.net/~ed.murphy/stacking.pdf)

Strikes me as an additional way for those who can't afford a high-end camera or don't want pack a heavy camera to remote places to produce high quality images with a compact digital.

Small camera, decent tripod, stacking and stitching, and the world's your oyster.

(Or perhaps someone sees a flaw other than 'crashing waves'.)

Title: Stacking images as a way to reduce noise
Post by: Tim Gray on April 19, 2005, 06:31:51 pm

It actually looks like a pretty good tutorial in use of blending modes.