Finger Filter Last Sunday I was taking shots at Cadillac Canyon. I was using a screw on 10 stop ND filter to allow me an exposure of a couple of seconds. The problem I had was the sky was blown out, overexposed, at 2 seconds but the foreground with these beautiful green algae covered rocks was perfectly exposed. I used my finger in front of the lens, covering the sky to reduce the exposure on the sky. I held my hand in front of the lens for about 1.75 seconds then moved it quickly before the exposure finished.
Here's a very poor quality video of the technique. I'll post the final shot in the comments.[fb_vid id="280274265963044"]