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Richard Chapman | all galleries >> Galleries >> High Speed Photography > Nov 18 2005 - Beer drop from Timer Mk I
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18-NOV-2005

Nov 18 2005 - Beer drop from Timer Mk I

First try using my IR gate/delay circuit for high-speed flash photography.

Lots of lessons learned here:

1. The AB800 flash used here is too long for this kind of work - doesn't really freeze the motion.
2. An accurate drop-generator would make life much easier
3. Timer is a little hard to adjust in a repeatable fashion - I think I'll build a digital (micropocessor-based) circuit instead.
4. The beer goes flat if you spend an hour messing with it.

Still, I was quite pleased with the results for my first attempt.

Canon EOS 5D ,Canon EF 24-105mm f/4L IS USM
15s f/22.0 at 105.0mm iso100 hide exif
Full EXIF Info
Date/Time18-Nov-2005 20:47:17
MakeCanon
ModelCanon EOS 5D
Flash UsedNo
Focal Length105 mm
Exposure Time15.00 sec
Aperturef/22
ISO Equivalent100
Exposure Bias0.30
White Balance (-1)
Metering Modematrix (5)
JPEG Quality (6)
Exposure Programprogram (1)
Focus Distance

other sizes: small medium original auto
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peterschmidt07-Dec-2006 16:28
mmmmmm. voted...
Guest 08-Feb-2006 04:34
interesting. and i appreciate your notes on your approach. but why am i so thirsty now? :)