Rated for all calibers, the compact 2-7X variant is built on a 1" main tube, with parallax adjustment (7.5 yards to infinity) built into the 32 mm objective bell. It features fully multi-coated ...

Viltrox has unveiled the AF 35mm F1.2 LAB FE, an ultra-fast 35mm prime lens for full-frame Sony E-mount cameras. As part of Viltrox’s new flagship “LAB” series, this f/1.2 lens is designed for ...

(CNSA/Xinhua via AP, File) (Uncredited, CNSA via Xinhua) CAPE CANAVERAL, Fla. – Soil and rocks returned from the moon’s mysterious far side suggest it may be drier than the side constantly ...

The new 28-70mm f/2 lens isn’t quite as wide in coverage and is 16 mm longer and 191 grams heavier but it has a faster and more up-to-date AF system and more complex optical design. It also boasts a ...

The discrete element method (DEM) has proved to be a valuable tool in understanding the mechanisms of soil friction mobilization and compressibility, Many problems, such as particle breakage and ...

We introduce a novel high-precision method for oxygen-isotope analysis of iron (oxyhydr)oxides using high-temperature conversion isotope ratio mass spectrometry (HTC-IRMS). In this approach, a finely ...

Samples were thoroughly mixed, stones, roots, and other contaminants were removed from the samples, and using a 2 mm aperture soil sieve to remove bulk soil. The soil samples were put into sealed ...

The fresh soil samples were immediately sieved through a 2 mm diameter sieve to remove rocks, roots, and visible organic debris. These were then taken and transported to the laboratory and divided ...