Compare eyepieces by magnification, exit pupil and approximate true field.
1
Enter telescope aperture, focal length and eyepiece focal lengths
2
Set apparent field and Barlow or reducer factor
3
Calculate, compare and export the equipment report
Telescope eyepiece comparison
Telescope eyepiece comparison
Compare magnification, exit pupil and approximate true field for up to 20 eyepieces. Include a Barlow or reducer factor and export the comparison.
Telescope eyepiece comparison
Compare magnification, exit pupil and approximate true field for up to 20 eyepieces. Include a Barlow or reducer factor and export the comparison.
One telescope, several eyepieces. The same apparent field and optical factor apply to every row. True field is estimated as apparent field divided by magnification, not measured from the field stop.
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