🔭 Eyepiece & Field of View

Pick a Woodlands Galaxy scope + eyepiece and see how a target frames up — magnification, true field & exit pupil. Andromeda Observatory, Woodlands Galaxy CC.

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1 · Telescope

Woodlands Galaxy instrument (preset)

Aperture (mm)

Focal length (mm)

2 · Eyepiece

Eyepiece (preset)

EP focal length (mm)

Apparent FOV (°)

Magnification

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True field of view

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Exit pupil

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Focal ratio

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3 · Framing

Target to frame

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Magnification = telescope focal length ÷ eyepiece focal length · true field = apparent field ÷ magnification · exit pupil = aperture ÷ magnification. Preset scope specs are typical values — adjust the boxes for your exact instrument. Target angular sizes are approximate.
Companion pages: telescope guide & magnification · dashboard · Tonight's Tour.