HiViz About HiViz.com Some common misconceptions about high-speed photography are that it's only for experts and that it requires specialized and expensive equipment. The HiViz site is dedicated to dispelling those myths by providing... Tools -- instructions for setting up and using your own high-speed imaging system, including triggers, flash units, cameras, and timing devices Activities -- guidance in photographing and demonstrating bursts, pops, snaps, smashes and splashes FAQ -- answers to frequently-asked questions about cameras, flash units, cameras, and timing systems Links -- high-speed photography resources on the web Galleries -- portfolios of exemplary student work Projects -- in-depth photographic studies of the "unseen" world Why do we put the word, visual, in High-Speed Visual Imaging? The splash of a drop of liquid is perhaps the most recognizable and prevalent of all high-speed images. We want to know about your high-speed photography projects. Back to top
WALNUTWAX SHOOTS (stuart mitchell) pretty-waists asked: What made you start taking photographs? hiya back when i used to live in scotland a lot of my friends were in bands..i couldn’t sing or play so to get involved i started taking promo and live photos for them..i remember getting my 1st camera when i was about 10 and i used to shoot a lot on family caravan holidays so my love of still images goes back a long way thank u x
Tools - Triggers - Make Your Own Tools Want to make your own trigger circuits? Try these: You'll also need a way to connect your trigger to a flash unit. Prefer to purchase all the parts you need in a kit? Building your own sound trigger If you would like to build your own piezoelectric sound trigger from scratch, a list of parts and a circuit diagram are given below. List of parts Piezoelectric buzzer element NPN general purpose transistor, such as 2N2222 5-kΩ variable resistor 5-kΩ resistor 68-kΩ resistor 400-V sensitive gate SCR 9-V battery and clip Back to top Building your own photogate trigger Lists of parts and circuit diagrams are given below for two photogate circuits. There are many infrared emitters and photodetectors that can be used with these circuits. An interrupter could be used in place of separate emitter and detector. Transistor photogate A photogate trigger circuit that uses a transistor is shown below. The sensitivity of the photogate is controlled with the 100-kΩ variable resistor.
ffffl*ckr alan_sailer [ Was a very, very obscure photographer working in his garage shooting stuff with a pellet rifle and photographing the results with a home built flash. Then in early 2009, someone linked one of my pictures to a social networking site. My boss came by one day and told me my site was getting a huge number of views. Emails from magazines, newspapers and even Good Morning America started clogging my FlickrMail box. It was very stressful. After the dust settled down I now have a very nice view rate in the thousand or so per day. And now I'm a slightly less obscure photographer. After all, two point four billion Chinese and Indian nationals have never heard of me. The present traffic is much more manageable. I hope you liked what you saw. Here are two links to information that I used to build my high speed flash. The article from Scientific American Microflash Manual A link to detailed plans for building a microsecond flash : Cheers.
Iain Crawford Photographer High Speed Air-gap Flash A bullet hitting a solid brass rod. In my quest to capture amazing high speed photographs I notice that when photographing shooting bullets the bullets were blurred. I found that standard xenon tube, which standard flashes use, is very bright for the energy put into it because of glowing xenon gas. The book Electronic Flash Strobe by Harold Edgerton explains all the calculations, but in practice this means all the flashes from Nikon, Canon and others that use xenon flash tubes have a minimum duration of 1/40,000th of a second. That’s fast enough for most things, but not for a shooting bullet travels around 1000 feet/second. To solve this I had to make a faster flash. Here is an image showing how an air-gap flash compares to a standard flash when photographing a 1000 feet/sec pellet. I am a strong believer in sharing knowledge so I’ll explain how I made my air-gap flash, but I am knowledgeable with high voltage safety procedures. This is the schematic for the custom circuit board I made.
Hobby Robotics Camera Axe Motor Sensor Contest With this competition I’m focusing community attention on getting better motor controller support into the Camera Axe 5 sooner, while rewarding the winner with some free hardware. I now have a working Camera Axe motor sensor prototype and I’m looking for help making it more useful for photographers. Why would you want to connect one or two motors to the Camera Axe? Well, this would let you control a pan/tilt head and automate taking very high resolution panoramas, or you could put your camera on a rail and take very cool time-lapse photos. The person who gives what I judge to be the most help contribution related to the Camera Axe motor sensor will win two motor sensors with motors from the Camera Axe store when they are released, or $100 credit to buy whatever you want on the store. Here are some examples of what I’d consider a helpful contribution: Those are just a few ideas to get you thinking so don’t let that limit your thinking. Permalink Useful links: