Quote from: Frans Waterlander on January 20, 2019, 11:49:29 PM
"Sure, with a single frame Photomatix has to dramatically increase exposure in the shadows. When I import the same single frame in PSE and increase exposure in the shadows to about the same extent, the noise is dramatically lower, so Photomatix, as I said before, amplifies the noise."
"You are confused (again) between exposure and brightness!
Maybe you should read up on the principle of intellectual honesty and read up on your own mistaken text when it comes to what exposure really is."
If I may point out what should be an obvious fact - no "PROGRAM" can alter the exposure of an image - that is a function solely of three variables at the time the photo is taken - after that all that can happen is that the image produced can be manipulated by a program like Photomatix which AMPLIFIES the shadows or whatever up to a level to match the rest of the image depending upon the desired result.
And since the shadows have to be amplified more than other parts of the image you get more noise.
And all HDR programs produce noise for that reason.
When you combine 3 or more images where the shadows have been, in effect, over exposed, there is far less amplification needed so less noise.
But exposure is, and always has been, solely a function of the sensor, and 3 interconnected variables - light, shutter speed and aperture.