The Meopta S1 S75 75mm Spotting Scope is a high-quality waterproof and fogproof spotting scope with a straight viewing design. Also available with angled viewing, but which one should be used is entirely a personal preference which cannot be determined except from experience. Straight scopes are simpler to use, particularly when locating the subject, and shave a bit off of the weight, size and cost. The 75mm size lets in a high degree of light, allowing for use of higher magnifications in poorer light than with the 65mm version. Understandably, it is larger, heavier and more expensive, but if youre not frequently hiking with your scope it is likely worth the expense and mass. Meopta spotting scopes are designed for the Natureviewer, Birdwatcher, Hunter and Target Shooter who demands a compact, lightweight, waterproof instrument with the highest levels of light transmission and definition. Key Features Rugged outer body compositions include lightweight aluminum alloy. Meobright fully multi-coated premium grade fluorite and non-fluorite glass objective lenses. Choice of two eyepieces: 30xWA - wide -angle eyepiece magnifying 30 times 20-60x - eyepiece with changeable magnification from 20x to 60x The built-in lens hood features an aiming element that can be used for quick general aiming. The optional photo-adapter allows the spotting scope to be used as an 800mm telephoto lens, which will work with most SLR cameras. Rapid focus focusing wheel allows for rapid focusing from 13.8" (4.2 m) to infinity. Compact tripod mount with 1/4-20 thread. Meopta Meostar S1 Straight 75mm Spotting Scope Body