Fantastic sharpness, great wide maximum aperture and lightweight design make this a truly ideal astrophotography lens.

Injection molding seemed easy—until I tried machining a double convex lens mold. From surface finish to mold alignment, this “simple” project got real fast.

According to draft guidelines, which DH has seen, if the revised estimate of a work exceeds the original cost projection by more than 10 per cent due to shoddy consultancy, a penalty of 10 per ...

This lens doesn’t just enhance your work; it transforms the way you approach storytelling. Discounted early bird pledges are now available for the novel project from roughly $679 or £527 ...

Or the lens can curve outward – called convex – to fix far-sightedness. You can tell what kind of lenses you have by looking closely at them. “Concave lenses are thinnest at the center ...

The plans for producing the main structure of the microscope and its associated components, the researchers note, have been available for a while, courtesy of the OpenFlexure project. The trick ...

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 13 years, which has given me a front row seat for the DSLR to mirrorless transition, the ...

The entire project plans are open-source and available ... the same parameters as an Edmund Optics 12.7 mm diameter plano-convex lens with a 35 mm focal length. The microscope is completely ...

The project took them approximately an hour to ... At the other end is the objective lens, a concave-convex lens, which curves inward on one side and outward on the other. The convex side faces ...

This project linked radio telescopes around the ... causing it to converge as if it had passed through a convex lens. This phenomenon is called the ' gravitational lensing effect,' and the idea ...