
Another shot from the long exposure workshop last weekend (more to be found below).
This image was taken with a total of 20 stops ND Filter (two 10 stop filters stacked). The exposure was 45 minutes. Camera was the Canon 1Ds Mark III, noise reduction in camera was turned off.
Image was taken into Camera RAW and then Photoshop for cropping, BW conversion, and tonal corrections (increased contrast). No noise reduction was used, as it was simply not necessary.
The moral of the story? Got money, have no noise...
No seriously, it is impressive to see what digital technologies have accomplished.
Most digital SLR's available today will produce great quality for exposures up to 5 minutes. Above that, noise starts to become a factor.
Realizing that this is a niche technique, this fact will only be interesting to a selective group of photographers. As film doesn't suffer from noise, this would be the alternative to anyone not wanting to commit the $8000 or so for the 1Ds but still wanting to use much longer exposure times.