Svbony SV230 Super Zoom Aspheric Eyepiece Clickstop Parfocal Design 8-20mm 57°- 72° AFOV for Astronomical Observation with 1.25" / 2" Nosepieces - W9185A

The SV230 super zoom aspheric eyepiece is featured with clickstop click and Parfocal design, 57°-72° panoramic wide angle provides you with the ultimate observation comfort. It also supports astigmatic corrector connection. Long eye relief of 17-19mm for comfortable viewing position, even for eyeglass wearers.  It can be used during the day and in the night, sky support excellent resolution and contrast values as well as a sharp image at a large apparent field of view. Observing planets with SV230 eyepiece is highly convenient, as it allows for clear and undistorted images without any edge distortion. 

Discover the exceptional performance of the SV230 SuperZoom by checking out the video link (@Bogdan Damian) :
https://www.youtube.com/watch?v=7vn8j3DrnR0

Features

• Universal use during the day and in the night, sky support excellent resolution and contrast values as well as a sharp image at a large apparent field of view.
  
• Parfocal across the entire zoom range. There is almost no need to refocus when changing magnification. 
  
• The wide focal length range allows the use on very many instruments, whether on a compact APO, DOB or fast Newtonian telescopes.
  
• Nine Element (include Aspheric), multi-coated optics for remarkable sharpness, contrast and colour correction.
  
• Smooth zoom action with click-stops at 8, 9,10,11,12,13,14,15,16,17,18, 19 and 24mm.
  
• Wide 72 degrees AFOV at 8mm, 57 degrees at 20mm.
  
• 17-19mm eye-relief and adjustable rubber eye-cup for comfortable viewing with or without spectacles. The maximum Ø of 60mm also allows the use on a binocular attachment.
• Includes both 1.25" and 2" barrels - threaded for filters.

Clickstop Click Design

The Click Stop design can adjust the zoom magnification and lock the selected magnification.

Panoramic Wide Angle

The 57°-72°panoramic wide angle provides you with the ultimate observation comfort. The field of view of each focal point is calculated using optical design software, which is really effective. The customer's intuition may feel that the field of view will be larger.

Dual Interfaces

Equipped with 1.25” and 2” interfaces. It is suitable for multiple telescopes.

Support Astigmatic Corrector

Zoom eyepiece with astigmatic corrector provides you a better visual experience. The rubber eyecup on the eyepiece can be removed. It has M43 T-mount underneath, which can be connected via an M43-T adapter(not included).

Aspherical Lens

Double-sided aspherical glass lenses is designed to eliminate edge distortion, it has resolved the persistent issue of subpar edge image quality associated with wide-angle eyepieces, thereby transcending the visual constraints experienced by users.

Parfocalization

Parfocal across the entire zoom range.There is almost no need to refocus when changing magnification.

Fully Multi-Coated Coatings are a great help for increasing the glass's light transmission and transparency, combined with the 6 groups and 9 elements construction to provide a clearer image.

Edge Extinction

This design can absorb unwanted light when observing objects, reduce the effects of light pollution.

Continuous focal length zoom of 8mm to 20 mm for a wide range of magnification without the need to switch eyepieces.

Long eye relief of 17 mm for comfortable viewing position, even for eyeglass wearers.

Rubber Eye-cup

The adjustable rubber eye-cup is comfortable for viewing with or without spectacles.

Specifications