Don, I have taken three normal slide
shots, pulled out the red channel from one , the green channel from
another and the blue channel from a third and was unable to get the results I
wanted. With the drop shutter did you get a normal tones for the areas that were
not moving?
In regards to shooting in film the camera TTL takes
into account the different filter factors and equalizes them so each separate
color exposure are a third of the exposure. The different filter factors for
example might produce one exposure at 1/60 and the other two exposures at
1/180 and all exposure would be at equivalent to 1/3 of the final exposure. The
cameras' meter would calculate this for you automatically. You don't get
this computation using a film camera or an digital camera on manual. Though I
see that you could obtain the automatic calculations on a digital
camera (since you can't fool the camera by changing the ISO like on a film
camera) by using the minus three stops on the exposure compensation function
button.
Roy
In a message dated 4/30/2009 7:01:54 P.M. Eastern Daylight Time,
droberts@xxxxxxxxxx writes:
I know what you are after since I have done that myself. It seems that if you took 3 separate exposures through red, blue and green filters, it would be very easy to combine them in Photoshop Access 350+ FREE radio stations anytime from anywhere on the web. Get the Radio Toolbar! |