Eyepiece and telescope pairing
Celestron Omni 6mm Plossl in the Celestron PowerSeeker 127EQ: magnification and field
What the Celestron Omni 6mm Plossl does in the Celestron PowerSeeker 127EQ, worked from the published focal lengths and apparent field.
Field of view
ring = 0.3 degrees true
dot = 0.8 mm exit pupil
- Magnification
- 167x1000 mm / 6 mm
- True field
- 0.3 degrees50 deg / 167x
- Exit pupil
- 0.8 mm127 mm / 167x
- Max useful mag
- 300xpublished
Computed optics
- Barrel match
- 1.25 in eyepiece in a 1.25 in focuser
Good fit. In the Celestron PowerSeeker 127EQ the Celestron Omni 6mm Plossl gives 167x with a 0.3 degree true field and a 0.8 mm exit pupil, inside the telescope's useful range.
Magnification is the telescope focal length divided by the eyepiece focal length: 1000 mm divided by 6 mm is 167x. The true field of view is the eyepiece's 50 degree apparent field divided by that magnification, 0.3 degrees.
The exit pupil, the width of the light beam leaving the eyepiece, is the aperture divided by the magnification, 127 mm over 167x, which is 0.8 mm. That makes this a high-power lunar, planetary and double-star setting.
The eyepiece to buy
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