UWA 4mm 82° Ultra Wide Angle Eyepiece Compared with the old UWA eyepiece, the new version has mainly made the following improvements: 1. The optical system has been slightly adjusted; 2. The design of metalworking part has been changed. The main body is slender in shape, and the cannula made of stainless steel has better texture. 3. Silicone folding eye cup is adopted, which makes observation more comfortable. SKY ROVER's second generation UWA series ultra wide-angle eyepieces, with high-grade optics and impeccable appearance, are products that astronomy enthusiasts are keen on. Its success lies not only in providing an ultra-wide angle view of 82 degrees, but also in its reasonable price. Especially suitable for observing planets and deep space targets, and also suitable for observing ground targets. Compared with the old UWA eyepiece, the new version has mainly made the following improvements: 1. The optical system has been slightly adjusted; 2. The design of metalworking part has been changed. The main body is slender in shape, and the cannula made of stainless steel has better texture. 3. Silicone folding eye cup is adopted, which makes observation more comfortable. SKY ROVER's second generation UWA series ultra wide-angle eyepieces, with high-grade optics and impeccable appearance, are products that astronomy enthusiasts are keen on. Its success lies not only in providing an ultra-wide angle view of 82 degrees, but also in its reasonable price. Especially suitable for observing planets and deep space targets, and also suitable for observing ground targets. Magnification = objective lens focal length/eyepiece focal length. Specifications Brand: SKY ROVER Coating: Fully multi-coated(FMC) Focal Length: 4mm Eye Cup: foldable Eye Relief: 12mm FOV: 82 Degrees Optical structure: 7 elements in 4 groups Size of Interface: 1.25 inches Net Weight: 185g Field of View Diaphragm: 5.6mm

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