Tube Length

Image Circle

Focuser Travel Length

Adapter Included

OTA Weight

Camera Format

Optional Flattener

Focal Length

Lens Type

Focal Ratio

Focuser

Description

Publication Date

Author

Priority Level

File Attachment

Contact Email

Phone Number

Review Status

Estimated Time

To-do

In progress

Complete

Status

The distance between the centers of a person’s two pupils, which must match the spacing of binocular eyepieces for comfortable viewing.

Interpupillary Distance

The diameter of the light beam leaving the eyepiece, showing how much light enters your eye for a bright image.

Exit Pupil

Magnification

Focus System

Prism System

Water Proof

Diameter

Release Year

The actual portion of the sky you see through the telescope.

Field of View

Minimum Focus Distance

Filter Thread

How wide the view looks when looking through the eyepiece — a larger angle gives a more immersive experience.

Apparent Field of View

Weight

Publish

Image

Series

Coating

Name

It’s how far back you can hold your eye from the eyepiece and still see the whole image — important for comfort, especially if you wear glasses.

Eye Relief

Diopter adjustment allows you to fine-tune focus for differences between your left and right eyes, ensuring a sharp image without glasses.

Magnification	8x
Diameter	42 mm
Exit Pupil	5.2 mm
Field of View	7°
Eye Relief	20 mm
Focus System	Center Focus
Prism System	Roof
Minimum Focus Distance	2.5 m
Weight	0.68 kg / 1.5 lbs
Coating	Fully-Multi-Coated
Water Proof	Yes

8x42 ED