Exposure Spike Fix - Printable Version +- LRTimelapse Forum (https://forum.lrtimelapse.com) +-- Forum: Archive (https://forum.lrtimelapse.com/Forum-archive) +--- Forum: LRT3 - Archive (https://forum.lrtimelapse.com/Forum-lrt3-archive) +--- Thread: Exposure Spike Fix (/Thread-exposure-spike-fix) |
Exposure Spike Fix - timelps - 2012-09-17 Hello. Is there a work flow to fix this? During the shots, I changed (experimented) with the shutter speed. Now there are three places with sharp exposure spikes (2 frames in each)...and then sharp drops back to "normal". I've tried a few ways, but still get the exposure spikes show up. Is there a work flow to follow in order to fix this (possibly)? Thank you...Lu RE: Exposure Spike Fix - Gunther - 2012-09-17 If you have the following situation: NNSSSN where (N = normal, S= Spike) you could try the following: Set keyframes to the images marked bold (normal keyframes, key 1). Save in LRTimelapse, go to Lightroom Read metadata in Lightroom (Grid-View, select all, read metadata from files) Set a filter to >=1 Star Go to the Develop Module. Open the film strip at the bottom. Select the leftmost of those marked images (the second N in the sequence from our example), now select the "S" images while holding Ctrl. Now hit Ctrl-Alt-Shift-M to invoke "Match Total Exposures" and see if they now look same. If so, save metadata, render video, be lucky! RE: Exposure Spike Fix - timelps - 2012-09-18 Hello Gunther Okay, will do. I've tried something similar with KF 1. Oh, and in the meantime, for a good measure, I went back into the mountain stream with rubber boots for a redo : ) So, there was only one spike (in the redo shots), LRT marked it with two left HG KF's and one right HG KF. Matching exposures of the last two worked - phew! Must say LRT with LR makes a HUGE difference along with the help on this VERY useful forum. Thank you for that Gunther! |