The Raspberry Pi is a Linux-based computer capable of running many DIY projects, including photography. Recently, we saw creative builders and engineers create a 3D printed interchangeable lens camera, an infrared board camera, a DIY retro camera, and an object detection camera, all on a Raspberry Pi. The new Project Photon is not a P-camera , but a light meter designed to help photographers take better photos instead of hand-held shots.
Photon is based on the Raspberry Pi Pico, a Raspberry Pi microcontroller that makes it possible to offer light measurements at a higher price point than traditional light meters that cost hundreds of dollars. The Pico itself starts at just $4. Photon, the company that developed the VEEB, says the full parts list costs less than $50.
In the digital age, in-camera light meters are effective for all use cases. However, there are times when you need a light meter. One such application is filming with film cameras, which has seen a huge surge in popularity in recent years. Not all have a built-in light meter, and some don't have a disposable light meter, requiring an external light meter to ensure optimal exposure. After all, film isn't cheap and nobody wants to lose an exposure because of wrong settings.
The Photon is a light meter, meaning it measures the amount of light hitting the subject, not the amount of light reflected off the subject back into the camera. Select and read the shutter speed with the button in the photon. You can also select ISO via a small knob on the other side of the Photon. Although the Photon was built with parts that cost less than $50, it performed well when tested with a high-speed sound level meter, VEEB reports.
The entire project is described on GitHub. Construction requires a bit of soldering, but VEEB says it's easy. The full list of components includes the Raspberry Pi Pico, OLED display, LiPo SHIM for Pico, encoder, two switches, Pimoroni light sensor, and LiPo/LiPo battery.
If you're looking for an affordable light meter and aren't afraid to build one yourself, the Photon seems like a great option. Visit GitHub for detailed instructions and visit the VEEB website to see their other products.
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