★ ★ ★½ Porro prism design with large objective lenses Tripod jack for steady views Loose-fitting lens caps What's instantly apparent about the Celestron EclipSmart 20x50 binoculars is their ...

Binoculars that use a Porro prism have offset eyepieces and objective lenses. The Celestron Outland 10×42 (as well as a few others on this list) share the same type of Porro prism and provide an ...

However, if the idea of binoculars that don’t shake or drift nearly so much when you’re trying to observe something appeals to you, then the 10x magnification, Porro prism design and super ...

Celestron has upgraded the Pro models in its line of SkyMaster Porro binoculars with ED glass lenses and larger prisms. This review covers the 20x80mm model.

Keep in mind: The Canon IS binoculars have a Porro prism, making them slightly larger and more conventional-looking than the other bird-watching binoculars on this list.

In 1851 an Italian, Ignatius Porro, devised a very ingenious and yet simple arrangement of prisms by which the simple astronomical telescope might yield an erect image.

The Canon 12×36 IS III binoculars for astronomy offer the company’s typical high-end optics and Porro II prisms, resulting in a sharp, bright, colorful image.