The article reviews the Stellarvue SV4, a 4-inch apochromatic refractor recognized for its high-quality optics and compact form factor. Central to the SV4's design is a LOMO fully multicoated ...

I’m going to get straight to the point: this article is about how the best lenses for black and white photography are apochromatic lenses. And I’m going to explain to you after years of shooting with ...

Being a budget-minded individual, I usually work with lower-end telescopes. For this review, however, I decided it was high time to try out a luxury instrument. My road-test vehicle has a name with a ...

Diffractive and refractive lenses are widely used in X-ray analysis and high-resolution X-ray microscopy with many scientific applications in materials science, energy sciences and biology.

Barrington, NJ. Edmund Optics announced it is now offering new super apochromatic objectives manufactured by Olympus. These silicone-immersion objectives are suitable for use in a variety of digital ...