Exit pupil diameter

Type: Phone Telescope (flexible) Material: Optical lens, ABS Quantity: 1pcs Item Color: Black Actual Magnification: 8X Objective Lens Diameter: 25mm Exit Pupil Distance: 2.2mm Exit Pupil Diameter: 11mm Field of View: 70 degree Size: 3.5*8.5cm / 1.4*3.3" (D*H) Magnifies your Mobile Phone Camera Lens by any Time. Portable and detachable Great For Photography and Film Lovers Lens can be attached by clip provided. This only ensures that the lenses are perfectly aligned with your camera Take a clear shot of subjects usually too far away to capture with 8X zoom lens

Color: Black Type: Binocular Image Magnification: 30X Objective Lens Diameter: 60mm Focus System: Eyepiece System Eye Cup Type: Rotating Around Prism System: Roof Exit pupil distance: 10mm Exit pupil diameter: 2.5mm Field of view: 126m / 1000m Resolution ratio: 7.2 degree Day & Night Vision Use the focus wheel to easily adjust and quickly focus to quickly adjust the focus. Adjustable eye width makes this optical Binocular is suitable for adults and children, Natural rubber material and unique non-slip design on the back to prevent it from slipping or shaking. Fully coated optics for added brightness and ultra-light transmission for all-weather use. easy to put into a pocket or bag Carrying strap makes the Binocular easy to carry. This telescope is ideal for campers, hunters, and sports. Suitable for children to watch dolphins, seabirds, animals, etc. Package Includes: Carrying Case, Neck strap and lens cloth.

Wide Viewing angle: 5 ° 20 Mini Compact Sakura Folding Binocular Telescope HD - 30 x 60 Viewing Range: 56/1000m Objective lens: 50 mm Eyepiece: 22 mm Logo Specifications: 20x50 Magnification: 20 times (16 times actual magnification) Exit pupil distance: 22.2 mm Exit pupil diameter: 3.1 mm Colour: Black Weight: 0.91kg (net weight) size: 190 mmx 170 mm x 60 mm

Type: 20x50 Magnification: 20x Clear objective Aperture: 50mm Field of view: 17mm Exit Pupil Diameter: 4.1mm Near focal distance: 5m Resolution: 5.6'' Prism type: BAK4 Focusing SystemCentral regulating wheel Water and fog resistantYes Packaged weight: 1200g Size: 190x175mm Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)

BRAND: BUSHNELL Color: Black Type: Monocular Image Magnification: 16X Objective Lens Diameter: 52mm Focus System: Eyepiece System Eye Cup Type: Rotating Around Prism System: Roof Eye relief: 18mm Exit Pupil: 5.2mm Field of view: 22 degree Day & Night Vision BRAND: BUSHNELL Color: Black Type: Monocular Image Magnification: 16X Objective Lens Diameter: 52mm Focus System: Eyepiece System Eye Cup Type: Rotating Around Prism System: Roof Eye relief: 18mm Exit Pupil: 5.2mm Field of view: 22 degree Day & Night Vision

BRAND: BUSHNELL Color: Black Type: Monocular Image Magnification: 16X Objective Lens Diameter: 52mm Focus System: Eyepiece System Eye Cup Type: Rotating Around Prism System: Roof Eye relief: 18mm Exit Pupil: 5.2mm Field of view: 22 degree Day & Night Vision Use the focus wheel to easily adjust and quickly focus to quickly adjust the focus. Adjustable eye width makes this optical monocular is suitable for adults and children, Natural rubber material and unique non-slip design on the back to prevent it from slipping or shaking. Fully coated optics for added brightness and ultra-light transmission for all-weather use. easy to put into a pocket or bag Carrying strap makes the monocular easy to carry. This telescope is ideal for campers, hunters, and sports. Suitable for children to watch dolphins, seabirds, animals, etc. Package Includes: Carrying Case, Neck strap and lens cloth.