Shooting into a mirror
Posted 21 November 2006 - 12:15 AM
Posted 21 November 2006 - 01:48 AM
I'd try metering the scene the mirror reflects toward the camera, not the actual mirror in itself. Ought to be quite simple with a spot meter to meter even through the mirror though. An incident one should work as well, by pointing the dome in the direction of the main reflections.
I'm not aware if mirrors actually change the incoming light at some minor degree, from what I've heard they reflect basically everything without much light loss(working well as reflectors etc).
Hope this helps, even at some degree.
This is a pretty quick question that probably doesn't deserve it's own thread, but I searched and couldn't find anything related to it. Anyways, I'm going to be shining a light into a mirror and filming it. How would you take a reading of this? I'm guessing with a reflective meter, but I'm not really sure. Any help would be much appreciated!
Posted 21 November 2006 - 02:45 AM
Posted 21 November 2006 - 05:17 AM
When really in doubt, hold a gray card in the area you want exposed properly. Make sure it doesn?t move, take a meter reading directly on the object, and then from the reflection. Compute the light loss between the two readings, then meter the scene like you normally would and add the stop compensation into it.
For example, if I am loosing 1 stop from the reflection, and I then take an incident reading at my subject that comes up at a F8, then I know if I want the reflected image exposed correctly, I need to shoot at a F5.6.
As was said though, a good clean mirror will have very minimal light loss.
Posted 21 November 2006 - 05:27 AM