Telescopes.
Choose a field of view.
A selection of 50 models for comparing optical specifications, preparing your setup and trying the framing in the planetarium. Choose a manufacturer, then one of its models.
No model matches these criteria.
Is your instrument different?
Use custom input in “My telescope”, then choose the eyepiece, its apparent field of view and the Barlow factor.
Configure my telescope →Sources and reading the catalogue
Optical diameter and nominal focal length come from the manufacturer specifications linked on each card. The 41 added models were checked on 19 October 2026. Focal length is given without a reducer; diameter can differ from the rounded number in the commercial name. Le rapport focal est calculé à partir de ces valeurs. Les modèles sont des exemples pédagogiques ; cette liste n’est pas exhaustive. Les marques et désignations appartiennent à leurs titulaires.
The simulation shows an eyepiece’s geometric field of view. True field is approximated by apparent field divided by magnification; the field stop, vignetting and accessories may change the usable field. Turbulence and optical performance are not simulated.