The viewfinder meanwhile uses a lens, a mirror, and a Fresnel lens, and if you think this might look a little familiar it’s because he’s based it upon his previous clip-on viewfinder project.

Zeiss has just unveiled the latest addition to its cellular trail camera lineup – the Secacam 3. This model is the most affordable in the series, yet it delivers an impressive range of features ...

Making a traditional glass lens requires a lot of experience, skill, and patience grinding a piece of glass to the required shape, and is not for the casual experimenter. Making a glass Fresnel len… ...

The detection angle relates to when an animal comes within a certain range of the camera, triggering the camera to take a photo in the next few moments. But, in order for the camera to capture an ...

An exceptional component offered by Knight Optical – the leading supplier in high-quality, metrology-tested optics – is the Fresnel Lens; popular for a range of uses, from integration with traffic ...