All Controlled w Arduino duemilanove, On button press
Solenoid valve release the drops
Trigger camera (Canon eos 40d)
Trigger Flashes (canon 580 Ex II & Vivitar 283)
Drops controlled w a mariote siphon,The rest up to arduino
when the first drop cross the photogate (IR Bareer) Arduino duemilanove Trigger camera and Flashes
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I'd like to add some way 4 shoot (trigger) a pellet gun, and a sound trigger, for the rest I find The arduino really great for high speed photgraphy.
Photoshop cant do such a beautiful things Nature does.
I'm still changing the setup, and preparing a complete turorial of How To all this stuff, I'll provide schematics codes even liquids
Basically work like this:
I press a button(door's bell one ;D )
It starts the sequence of delays 4 each componet: solenoid, camera and flash.
What kind of solenoid is used?
The solenoids I find when I search the web are for bigger applications, not giving me the possibility to control small flows.
McMaster-Carr has some nice small 12v plastic ones--not cheap at US$42, but they work very well; we use them to inject dye into water for visualization; search part no. 7876K11
tsort
What kind of solenoid is used?
The solenoids I find when I search the web are for bigger applications, not giving me the possibility to control small flows.
From my research people seem to recommend a Shako PU220 solenoid valve. They seem to retail for about £25 GBP here in the UK. Some say they are a step up from the one supplied by with the stopshot retail kit. I have not tested one yet, but I am in the process of building a water drop setup, and intend to use one of these
Without reading this thread I am designing a similar device too. The main obstacle at this point is getting a solenoid valve which is not too expensive.
Does anybody have link for me where to get the Shako PU220 for about 35 dollar (or pound/euro). I just ordered the Arduino Uno to start developing.
I built something similar around 1993 out of popular electronics, but is it really that hard to time the exposure manually, especially with digital where misses don't cost you anything?
I shot this using a stock IR remote to trigger the camera as I dropped a quarter in the glass. Overall, I only missed about 20% of the time, and had a nice selection of splashes to choose from.
I found the whole process a lot more fun without the automatic trigger because the setup was much more dynamic.
is it really that hard to time the exposure manually, especially with digital where misses don't cost you anything?
When I tried (it was about the first thing I did with an arduino, I'll return to it at some point soon) I found a digital camera handy to check things were working, setting the delay between trigger and flash, finding a decent angle, etc. Next time I try it I'll be using a digital camera to start with then switching to a proper film SLR.
When I tried (it was about the first thing I did with an arduino, I'll return to it at some point soon) I found a digital camera handy to check things were working, setting the delay between trigger and flash, finding a decent angle, etc. Next time I try it I'll be using a digital camera to start with then switching to a proper film SLR.
I'm not sure what you mean. As far as checking things, with the trigger you can see the frozen image with your eyes. A cheap point and shoot won't help you set the exposure either.
I also don't know what you mean by proper film SLR. Is it just that you don't have access to a DSLR? My sample was shot with a
Nikon D90 and 70-200 2.8 lens, and the 12x18 prints I made are razor-sharp. Far better than I ever got with 35mm film even in pro Nikon bodies.
Check out this link about water drop collisions. There is a link to Apex Industrial Supply in San Diego, Ca. They will sell you a Shako Valve. I got mine yesterday. I bought the 1/8 24vdc model, and the 1/4 24vdc model but it was back ordered. Ask for Jose when you get through to sales.
The author of the article has done extensive research on water drop photography and has prepared a nice article. It is a good read for all people interested in the art of water drops.
More surprising that it aint.
Nature does.