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05/29/2004 02:34:09 AM · #1 |
Thanks to everyone who left comments on this shot. I didn't do as well as I had hoped but there were some amazing photos to contend with. Well done to the winners. There were some of you who wanted to know how I did this, so here goes-
Firstly, there are a few ways of achieving this type of multiple exposure. The aim is to leave the shutter open and expose each component of the shot individually. How the exposure is obtained depends on the equipment you have to work with, but this is what I did.
My setup was really simple - the camera mounted on a horizontally fixed tripod arm, a 550EX flash off camera but connected via off-shoe cord, a cardboard snoot that I made for the flash and a piano stool as a shooting table and of course a pack of cards. I used a Canon 100mm f2.8 macro lens. The room was also very dark to avoid stray incandescence.
The camera was mounted so that the face of the lens was as close to parallel with the shooting surface as possible. The lens was about 4 inches from the shooting surface and set to f20 to guard against over exposure. The camera also set to manual mode.
The flash was mounted on a second tripod about 12 inches from the subject and to the side of the camera. The snoot was attached to concentrate the light on the subject. The flash was set to stroboscopic mode at 2Hz and 1/128th output.
The shutter speed was set to 2 seconds. The result was that the flash would fire at 1/128th power, 2 times a second for 2 seconds.
All I did then was to place the first card on the table and then after the first flash (carefully) throw the remaining 2 cards on top of the first.
I lost count of the number of times I did this before I got the right combination of cards. I erred on the side of under exposure because it was easier to develop the image rather that trying to recover burnouts.
Another way of doing this if you don't have a 550ex or other stobing flash is to use a black card to cover the lens between exposures. Remove the card for each exposure and fire the flash on manual at reduced output. Replace the black card in front of the lens and place the next playing card down and take another exposure etc etc.
Hope that all made sense and please excuse any typos. Good luck to everyone for the current challenges.
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05/29/2004 06:47:46 AM · #2 |
This shot is as deceptive as a card trick. It goes to show there is a fine line between a "Cheap photoshop trick" and a good single exposure.
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05/29/2004 07:39:36 AM · #3 |
Originally posted by BooZon:
"Cheap photoshop trick" |
Just gotta love Sparky's comments. They're just wonderful. |
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05/30/2004 05:11:58 AM · #4 |
Geoff,
Excellent shot and excellent technique! I really am quite surprised that this didn't score considerably higher in the challenge. I've been participating here since last October and am slowly becoming accustomed to the fact that not all first-rate images have mass-appeal.
Thanks for the lucid, detailed description of how this was done. I have the Sigma 500 DG Super flash, similar to - but cheaper than - the Canon 550EX, and am going to try the technique.
Congratulations on an absolutely first-rate image!
-len |
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