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![TPL RKE 40 mm 2\" eyepiece](images/150_okular_ke_2in_40mm.jpg "TPL RKE 40 mm 2\\" eyepiece") Shop online:
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TPL RKE 40 mm is a three-element Reversed Kellner eyepiece (RKE) in a two-inch frame. It is an eyepiece with good optical parameters, with a large 56-degree field of view, good MC layers (anti-reflective) and high optical efficiency. It is therefore especially recommended for nebular observations, especially by telescopes with small light. The eyepiece has a conveniently retracted exit eye ( eye relief equal to 20 mm). | • Focal length: | 40 mm | | • Field of view (AFOV): | 56 ° | | • Diameter of binding: | 2 inches | | • Filter thread: | 2 "/ M48 * 0.75 | | • Retracting the output pupil: | 20 mm | | • Eyecup: | rubber, rolled up | | • Height: | 14 cm (with eyeball) | | • Weight: | 355 g |
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