Props to both Phil and Bogdan - wonderful to finally 'meet' you here :) - and thank you so much for all of your work on ET (v9.46) and ETGui (v5.15.0.0).
In years past I've been pretty happy with Baard Riiber's EXIFextracter (http://www.br-software.com/extracter.html) but I've begun some tests which forced me to start looking for more and happily have found this unbeatable combination. I'm beginning tests on Promote Systems (http://promotesystems.com/)' bulb ramping feature and thought that maybe specific details were buried in the Exif data.
In particular, the whole point in bulb ramping and why I'm bothering to write, has to do with the very small changes being made to the various exposures. From Promote's User Manual, this:
The Bulb Ramping mode is intended for Time-Lapse users who would like to take Time-Lapse videos in changing light conditions, such as a sunset or a sunrise. It works by varying camera Bulb exposure in very small increments, achieving a nearly flicker-free exposure transition from bright to dark, or dark to bright.
For example, on the camera, 1/3EV shutter speed steps and 1/3EV ISO steps are typically used but there are much finer adjustments accomplished with this particular intervalometer. How precisely those miniscule values are actually written by the camera into Exif is unknown (e.g., to the thousandth's place, 0.001), but ultimately, they would be quite useful in knowing for these tests. Now with seeing all there is to see thanks to ExifTool, it appears that camera manufacturers' firmware rounds things off to the nearest tenth and calls it good enough.
Thank you both very much for making these tools.
Kind regards,
Kelly
PS. I'm letting Arty (Promote Systems' senior developer) know about ExifTool and ExifTool GUI :)
You're welcome!
- Phil