View single post by Eric
 Posted: Wed Jun 20th, 2012 06:35
Eric



Joined: Wed Apr 18th, 2012
Location: United Kingdom
Posts: 4186
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Gert wrote: Eric wrote:
...
At the moment if I need to use really high ISO with interior lighting, I still tripod mount and take 3 identical shots.

Place the 3 shots on seperate layers in PS and drop the opacity in the 2nd and 3rd layers to 25% and 40%. This gets rid of most noise. But of course you need to have a static subject!
...

Now I am curious, if the subject is static and you have a tripod, why not simply go for base iso and a long shutter time?
Are you up against some very low frequency vibrations?
Its very useful rethinking why we do things from time to time. You have made me do that.

I started the 3 layer averaging (for some work) some years ago when I changed from the D1X to the D2X... because I found two things 'wrong' with it.

The extra pixels (at that time ) brought more noise. But I also felt the extra pixels required greater precision in technique. Simply ...I had to half my shutter speeds to get the same IQ as the D1X. At that time I was shooting old hotel interiors and I found people walking about in adjacent rooms bounced the floor!!

So I used a tripod but tried to to keep more normal (hand held) shutter speeds. I also used flash, to avoid some mixed  lighting WB issues, so getting nearer the sync speed was desireable also.

This meant with the high ISO noise of the D2X I had to do the Cambridge in Colour trick.

But things change and maybe this D800 feature you have discovered has changed the ground rules?

Very interesting.








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Eric