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SVBONY SV135 Telescope Eyepiece Zoom 7 to 21mm 1.25 Inch Zoom Eyepiece Fully multi Coated 6 Element 4 Group Zoom Lens Telescope Accessory for Astronomic Telescopes
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About SVBONY SV135 Telescope Eyepiece Zoom 7 To 21mm 1.25
SVBONY SV135-This is definitely a must for beginners to start a good eyepiece collection.with this eyepiece, you can enjoy planetary astronomy without spending a lot of money.As a beginner;SV135 is great for starter astronomer! 7mm-21mm linear continuous zoom Regarding the zoom action; it is stiff enough that you won't accidentally shift focal lengths; but it is also smooth enough that you can rotate it without holding the base of the eyepiece with your other hand High quality optical design 6-Element 4-Group premium optical with FMC ultra high quality standard coating;It also ensures the transmission of light up to 97% while reducing the loss of light during transmission 40-57°Field of view It also gives you a clear and bright angle of view while ensuring you get the magnification you need;Compatible with any telescope that accepts 1.25 inch eyepieces M28.5*0.6 filter thread SV135 zoom eyepiece has M28.5*0.6 threads on the bottom very convenient for connecting filter;Works great for photography Note:This zoom eyepiece just for 1.25inch telescope; can't match with spotting Scope Technical parameters: Focal length: 7-21mm Zoon Type: Linear Lens structure: 6PCS / 4group Eye Relief: 18mm - 16.3mm Interpupillary Dist.:15mm Barrel Size: 1.25" Field of view: 57~40° Coatings: Fully Multi-Coated-Green Rubber Eye Guard: Yes Meterial: Metal Color: Black Thread Size: M28.5*0.6 Overall length: 93mm Net Weight: 133g / 4.67oz Package Include: 1xSVBONY SV135 7-21mm 1.25 inch Eyepiece 1xLens Covers (Objective and Eyepiece) 1xLens Cleaning Cloth
