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
Brand: SVBONY
<b>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!</b><br><br> <b>7mm-21mm linear continuous zoom</b><br> 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<br><br> <b>High quality optical design</b><br> 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<br><br> <b>40-57°Field of view</b><br> 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<br><br> <b>M28.5*0.6 filter thread</b><br> SV135 zoom eyepiece has M28.5*0.6 threads on the bottom very convenient for connecting filter;Works great for photography<br><br> <b>Note:This zoom eyepiece just for 1.25inch telescope; can't match with spotting Scope</b><br><br> <b>Technical parameters:</b><br> Focal length: 7-21mm<br> Zoon Type: Linear<br> Lens structure: 6PCS / 4group<br> Eye Relief: 18mm - 16.3mm<br> Interpupillary Dist.:15mm<br> Barrel Size: 1.25" <br> Field of view: 57~40° <br> Coatings: Fully Multi-Coated-Green <br> Rubber Eye Guard: Yes <br> Meterial: Metal<br> Color: Black<br> Thread Size: M28.5*0.6<br> Overall length: 93mm<br> Net Weight: 133g / 4.67oz<br><br> <b>Package Include:</b><br> 1xSVBONY SV135 7-21mm 1.25 inch Eyepiece<br> 1xLens Covers (Objective and Eyepiece)<br> 1xLens Cleaning Cloth<br>
SV135 7 mm to 21mm adjustable focal length;SV135 7-21mm zoom eyepiece equivalent to multiple eyepieces ;obtain higher magnification with short focal length;It could bring you a better observation experience in a comfortable situation with high-contrast imaging
18mm - 16.3mm comfortable eye relief; especially for eyeglass wearers ;designed primarily for viewing landscapes and astronomical observations of lunar surfaces; planets; nebulae; clusters; and diffuse nebulae
Fully multi-coated Premium eyepiece;The true fully multi-coated Premium eyepiece with superior edge and center sharpness than normal PLOSSL eyepieces; 6-Element 4-Group premium optical design for superior optical performance
Standard 1.25" eyepiece;Equipped with a precision-made standard 1.25-inch lens barrel that is compatible with any telescope that accepts 1.25-inch eyepieces; Rubber eye guard for comfortable viewing and blocking stray light
A cost-effective eyepiece;Full metal body; fine appearance; 40 degree - 57 degree wide angle field of view; high brightness observation is very comfortable ;you will obtain more details that you have never seen before