Starwave 80 ED Triplet APO Travel Refraktor 80/480 ( F/6); Starwave 80 EDT-R Specifications & Features: Optical tube with air-spaced 80mm F6 Triplet ED lens system (480mm focal length) Hoya FCD100 ED (SD) glass element and mating elements housed in a precision adjustable CNC machined lens cell with temperature compensation interleaving. Super-high transmission coating (STM Coating) on all air to glass surfaces. Resolving Power (Dawes Limit) 1.45 arc seconds Visual Limiting Magnitude 12.2 maximum Weight approx. 3kg, OTA length with dewshield retracted, 39cm. Precision CNC machined components and tube made from light, tough aluminium alloy with matte powder coat and hard anodising. Retractable lens shade / dew shield. 2.5" "Rack 'n Pinion" Geared dual speed focuser with 1:10 micro-focuser. Entire focuser rotates relative to the optical tube for easy photographic composition. Teflon tension-adjustment screws and Teflon collet ensure focuser rotates smoothly. Self-Centering 2" to 1.25" reducer with brass compression rings included. Front aluminium push-fit lens cap, rear plastic 1.25" dust plug. Standard 1.75" dovetail bar with stainless steel M6 cap-head screws included. Tube Rings with M6 threaded holes with 30mm spacing, compatible with Altair and most other mounting dovetail plates and bars. Hard Carry Case with foam insert, handle and keys. Case Dimensions 22cm Width x 45cm Length x 17.5cm Depth Scope of Delivery: Optical Tube 2x Tuberings Moutingplate Case