Posts: 5
Threads: 2
Joined: Sep 2014
Preface - I'm a totally newbie to LRTimelapse.
Yesterday I shot a totally Manual 2145 frame sequence of fast moving storm cloud system that occurred during sunrise - Clouds were gorgeous. I also used an old Cokin "A" series graduated neutral density filter to reduce the sky/ground exposure differential
I used an old 1 degree spot meter to measure the EV of a patch of the sky which was clear (Old school 18% grey). I then manually adjusted the shutter speed by a 1/3 of a stop when the EV changed by 1/3 (single dot).
Initial Setting Aperture f3.5 Iso 1600 1/40 sec
Final Setting Aperture f 3.5 Iso 1600 1/1600 sec
I ramped only the Shutter speed.
The Workflow did an Excellent job in identifying where I changed the speed settings, but the resultant Holy Grail workflow reflected the total "change" in exposure, not that the fact that the only change of each segment is a 1/3 of a stop.
The "start" of each segment is correctly exposed and the "end" of the segment is 1/3 stop overexposed. The start of the next segment is then again correctly exposed.
How do I use the Holy Grail Workflow to create a "Saw Tooth" 1/3 stop filter to apply to Lightroom?; because the last frame is only relatively over/underexposed by 1/3 of a stop (Does this make sense? Total vs Relative Maths) .
Have I missed something?
Yesterday I shot a totally Manual 2145 frame sequence of fast moving storm cloud system that occurred during sunrise - Clouds were gorgeous. I also used an old Cokin "A" series graduated neutral density filter to reduce the sky/ground exposure differential
I used an old 1 degree spot meter to measure the EV of a patch of the sky which was clear (Old school 18% grey). I then manually adjusted the shutter speed by a 1/3 of a stop when the EV changed by 1/3 (single dot).
Initial Setting Aperture f3.5 Iso 1600 1/40 sec
Final Setting Aperture f 3.5 Iso 1600 1/1600 sec
I ramped only the Shutter speed.
The Workflow did an Excellent job in identifying where I changed the speed settings, but the resultant Holy Grail workflow reflected the total "change" in exposure, not that the fact that the only change of each segment is a 1/3 of a stop.
The "start" of each segment is correctly exposed and the "end" of the segment is 1/3 stop overexposed. The start of the next segment is then again correctly exposed.
How do I use the Holy Grail Workflow to create a "Saw Tooth" 1/3 stop filter to apply to Lightroom?; because the last frame is only relatively over/underexposed by 1/3 of a stop (Does this make sense? Total vs Relative Maths) .
Have I missed something?