SVBONY SV135 1.25inch 7-21mm zoom telescope eyepiece 6-Elem 4-Group Optical FMC

Description

Features of the Zoom Eyepiece :
Fully multi-coated Premium eyepiece zooms to any focal length between 7 mm and 21mm
Zoom from low to high power in an instant with this versatile eyepiece
Compatible with any telescope that accepts 1.25î eyepieces
6 -Element 4-Group premium optical design
Comfortable 18mm - 16.3mm eye relief more comfortable, especially for eyeglass wearers
Technical parameters:
Brand: SVBONY
Model: SV135
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 Includes
SVBONY SV135 7-21mm 1.25 inch Eyepiece
Lens Covers (Objective and Eyepiece)
Lens Cleaning Cloth
This SVBONY 1.25 inch filters include most popular color planetary and moon telescope eyepiece filters: 23A Bright Red 21 Orange 12 Yellow 56 Bright Green 82A Bright Blue Circular-Polarizing Filter and Moon Filter. These filters are vat-dyed for even color coating and then anti-reflection coated for maximum transmission. The eyepiece filter cells are made of anodized aluminum and are single-threaded.
Features of the Filter Kit
SVBONY 1.25 inch 7pcs Telescope Filters set - 5 Color Filters Moon Filter and CPL Filter
High quality Aluminum alloy frame and Optical Glass, superb value for money
Color filters (Red, Blue, Green, and Orange & Yellow) highlight features on Mars, Jupiter, and Saturn
CPL Filter enhances the contrast of the moon and planets in photographic images
Moon Filter Enhance Lunar Planetary Views to Eliminating the Street Light Smog
Standard 1.25 inch Filter threads for 1.25" eyepieces and other accessories
Brand Name: SVBONY
Filter Type: Color Filter + Moon Filter + CPL Filter
Single Filter Net Weight: 6.1g
Interface Threads: M28.5*0.6
Package Includes
SVBONY 1.25" Five Color Filter (Red, Blue, Green, Orange, Yellow)
SVBONY 1.25" CPL Filter
SVBONY 1.25" Moon Filter
Since planetary surface details and atmospheric phenomena reflect sunlight as contrasting colors, you can use color filters to accentuate subtle details on planets, comets, and the Moon by selectively increasing contrast between features and markings of different hues. Simply put: using various color filters makes planetary details easier to see.
Features
:
#15 Deep Yellow Planetary Filter: Boosts contrast of lunar features, accentuates red and orange features on Saturn, Jupiter, and Mars, reveals low-contrast cloud detail on Venus.
#25 Red Planetary Filter: Enhances Martian surface details in large telescopes, reveals cloud definition on Venus, accentuates bluish cloud regions on Jupiter and Saturn.
#58 Green Planetary Filter: Enhances contrast of blue and red structures on Jupiter (including Red Spot), melt lines around Martian polar ice caps, accentuates Saturn's cloud belts.
#80A Medium Blue Planetary Filter: Enhances details in Jupiter's belts and Red Spot, high clouds and polar caps on Mars, lunar surface details, Venus cloud features.
Pls note:
The filters of SVBONY are not designed for sun observation. Do not look at the sun with SVBONY filter. You would be blind if you fail to observe the warning
Package Includes
SVBONY 1.25 " NO.15 Color Filter
SVBONY 1.25 " NO.25 Color Filter
SVBONY 1.25 " NO.58 Color Filter
SVBONY 1.25 " NO.80A Color Filter
4PCS Sturdy Plastic Case
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