Search query: 90 degree eyepiece
Product: SVBONY Telescope Eyepiece FMC Broadband Green Film Telescope Accessory 1.25 68 Degree Ultra Wide Angle Eyepiece Set for Astronomical Telescope(6mm 9mm 15mm 20mm)
Brand: SVBONY
Description: SVBONY 68 degree ultra wide long eye relief eyepiece with a comfortable wide field for planetary observing

Super wide 68 degree apparent field offers expansive views of the moon;star clusters;and the Milky Way

It helps gets sharpness;high contrast and orthoscopic images;it can be used in any astronomical telescopes that fits for standard 1.25" eyepieces

68 degree ultra wide FOV:
Comfortable ultra-wide field that naturally more poerful to get bright and sharp viewing

Fully multi coated lens:
High quality observation without introducing additional chromatic aberration;make image more sharper

Broadband green film optical glass:
Chromatic corrected;high transmittance to achive clear and sharp viewing

6/9/15/20mm eyepiece set:
Low;medium and high powered magnification for a wide range of viewing;enhance the visual experience

Optical structure design:
Multi-element design;highly achromatic;it delivers sharp images and enhance the details of planetary filters,Soft rubber eye guard
Fold down soft rubber eye guard is more comfortable for eyeglass wearers

Specifications::
Structure design: 5-elements in 3 groups (6mm)
6-elements in 4 groups (9mm)
4-elements in 3 groups (15mm)
5-elements in 3 groups (20mm)
Eyepiece series:68 degree ultra wide eyepiece
Focal length:6mm/9mm/15mm/20mm
Barrel size:1.25"/31.7mm
Eye relief:17mm
Apparent field of view:68 degree
Lens material:optical glass lenses
Body material:fully metal
Filter threads:standard 1.25" filter thread

Package includes:
1xSVBONY 1.25" ultra wide 6mm eyepiece
1xSVBONY 1.25" ultra wide 9mm eyepiece
1xSVBONY 1.25" ultra wide 15mm eyepiece
1xSVBONY 1.25" ultra wide 20mm eyepiece
Highlights: Super wide 68 degree apparent field of view;gets broad field observations for amazing observing experience
Fully multi coated lens;broadband green film optical glass increases light permeability for sharp images
Multi-element design delivers sharp images;highly achromatic with good color correction and contrast
Black anodized aluminum housings;internally blackened to eliminate light scattering and contrast
Fold down soft rubber eye guard;block stray light also bring the convenience to eyeglass wearers;It's a great Halloween birthday christmas gift
ESCI relevance label: S