Wet-type photography is an ancient photography technique from the 19th century. Take clean glass or iron film as the negative film, apply the emulsion of fire-cotton glue as the main material, then immerse it in silver nitrate, and keep it moist after taking it out. The film is taken under the environment, then developed, fixed, and the negative film is made into a positive or negative film according to the preference.
Clement has been working on wet photography for six years, and he is keen to seek breakthroughs in this difficult and slow photography process. Compared to the ISO of modern cameras, wet-photographic emulsions are sensitive to light and must be filmed in a moist environment, so there is only 5 shots from the application of the foam to the photo. The effective time in minutes or so.
A few years ago, Clement had the idea of ​​doing wet photography in the air, but the drones were very scarce, and the techniques for payload and stability were limited. Until this spring, he decided to try this idea again. He found Snaproll on Google, where he got support for drone technology . They provided a Freefly Alta 6 drone with Movi stabilizer to provide stability. Long exposure time.
The camera that usually performs wet photography is big and heavy. If you want to go to heaven, you must transform it. In the lightest case, Clement used a Sinar F2 with a Petzval lens. He chose an old Schneider 135mm f/4.7 lens, a Japanese Copal shutter, and glued together several light wood boards. In the chassis, a standard screw is installed under the chassis.
In order to open the shutter remotely, Clement has removed a mini-server from other aircraft, as well as a radio receiver, and finally paired with the drone remote control , which has a control distance of about 400 meters.
All equipment was remodeled, Ben and Alan carefully leveled the stabilizer. Clement prepared a negative in his portable darkroom, applied the emulsion to an aluminum negative, and placed Into the silver nitrate. Silver adheres to the emulsion, reacts with lithium bromide and ammonium iodide to form a photosensitive, and then mounts the film on the film holder and mounts it behind the camera.
Immediately after the drones quickly lifted off, they passed the pictures provided by the UAV FPV perspective, and drove the drone to a lake about 40 meters high and hovered stably, then pressed the shutter switch, so there was The world's first aerial wet photo shoot.
However, the negative results are not satisfactory. Although they are very fulfilling, this point is that such photos can be easily photographed from high buildings or mountains. After a few minutes of discussion, Allen proposed to shoot the shadow of the drone. Then he re-adapted the film and took off, so he took the world's first aerial wet photo selfie.
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