Feature
●12.5mm Plossl eyepiece with red LED illuminated double line crosshair reticle;its idea for measuring double star angular separations;position angles;planetary diameters and lunar crater diameters
●Steplessly adjust the brightness of dual crosshair reticle;rotate switch on the side to put it on;shut it off and adjust the brightness
●Multi-coated 4-elements Plossl design for excellent color correction and sharpness;it also offers excellent light transmission and sharp imaging on faint stars
●Wider view angle and bright high contrast views;40 degree apparent field of view with 11 mm comfortable eye relief;Its a great Halloween birthday christmas gift
●Standard 1.25" eyepiece;suitable for any standard 1.25" telescope filters and other astronomical devices
Description
SVBONY 12.5mm illuminated eyepiece features double crossline reticle; for accurate polar positioning and long-exposure photo-guiding when using with off-axis guiders for centering and guiding of stars
Double crosshair eyepiece
Double crosshair design, can easily align the target object. Helps locate and center stars well;also fits for guiding astrophotos when used in off-axis guiders or guide scopes; Notice deviation of the positioning easily;so that guide star and reticle appear in ideal sharpness and definition
Brightness Adjustable
Adjustable red LED light brightness control to illuminate crosshairs and preserve night vision, you can twist the knob to meet your different requirement.
Fully coated anti reflection coatings
Multi-coated 4-elements Plossl design - excellent color correction and sharpness, provide bright views with a 40-deg apparent field of view
Compact size and all metal construction
All metal construction and anodizing aluminum process; durable for long time use
Product comparison
 SV135 7-21mm eyepiece |  SV171 8-24mm Eyepiece |  SV215 3-8mm Zoom Eyepiece |  40mm Telescope Eyepiece |  6mm Telescope Eyepiece |  SV131 32mm Eyepiece |  SVBONY 2X Barlow Lens | |
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Customer Reviews
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Price
| $49.99 | $75.99 | $149.99 | $20.99 | $35.99 | $29.99 | $16.99 |
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Lens Structure
| 6-Elements/4-Groups | 7-Elements/4-Groups | 6-Elements/4-Groups | 4-Elements/2-Groups | 5-Elements/3-Groups | 4-Elements/2-Groups | 2-Elements/2-Groups |
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Field of View
| 40°-57° | 38°-56° | 56° | 40° | 66° | 48° | — |
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Feature 1
| High-contrast imaging | Constant eye relief | Click and stops design | Detachable eyepiece | Edge blackened optics | Extinction Ink | Safety undercut |
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Feature 2
| Super-wide Angle | Super-wide Angle | Parfocal Design | Blackened lens edges | 16mm eye relief | Non-slip Cover | M42x0.75 thread |
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Compatible with
| Barlow Len and filter | Barlow Len and filter | Barlow Len and filter | Barlow Len and filter | Barlow Len and filter | Barlow Len and filter | Eyepiece and filter |