Velasco...
Can help me? What is the best way to reduce noise when pp with HDR?
Much of the noise comes from some areas still being too dark. When you bracket your shots, make sure that it covers all the dynamic range of the scene.
How do you take your images?
This is what I do:
First of all, select the lowest ISO possible.
Meter the scene (half press shutter) and look at the shutter speed and the aperture.
You can now do the exposures in two ways.
1)
I tend to do this
Go into full manual mode. Lock the focus.
Remember the values from the metering? Set the same aperture. I normally start with a shutter speed that is three times as long as the metered one. Take a shot. Look at the
the histogram. Is it 'pushed' against one side (Think it should be the right side)? If it is not, take a shot with a longer shutter speed. If it is, I would half the shutter speed for the next shot. Take shots that will slowly move the peak across the whole range, finally ending up with a shot that is pushed against the other side.
I normally need about five shots this way.
2)
If you are using the auto exposure bracketing (I do this for hand-held, quick shots)
Go to aperture priority.
Remember the values from the metering? Set the same aperture.
Set the AEB value to +/-2
Take your shots.
You will end up with three photos.
Hope this makes sense.
<RANT>
Also, the pixel density on the S5IS is quite crazy. To me, my S3IS seems to be less noisy. Stupid megapixel race. :sticktong
</RANT>
Which software are you using? If it is Photomatix, play with the Micro-smoothing slider. This will help control the noise, though you might loose some details.