TeleVue Plössl 32mm 1.25" Eyepiece

TeleVue Plössl 32mm 1.25": Eyepiece: Classic TeleVue Plössl eyepiece

The TeleVue Ploessl 32mm has a field stop of 27mm, thus making full use of the 1.25-inch format. It is the lowest magnification that makes sense in this format; a longer focal length will not provide a larger field of view, only a larger exit pupil.

With a 22 mm eye relief, this is also a remarkably comfortable eyepiece, even when wearing glasses.

The TeleVue Ploessl design

Four lenses in two groups are all a good Ploessl needs. Because there are few glass surfaces, transmission remains high and contrast is maximized: precisely the characteristics that matter for planetary and lunar observation.

TeleVue T-type optics brought the design to the current level in the seventies, with tight manufacturing tolerances, multiple coatings, and blackened lens edges. You can see the difference compared to a standard supplied eyepiece right at the edge of the field.

The full field of 1.25 inches

The same true field of view as the Panoptic 24 mm, but at a lower magnification and a lower price. Under a dark sky, that's a fair trade; under a bright sky, the Panoptic's higher magnification wins on contrast.

Check the exit pupil: 32 divided by the f-ratio. At f/5, that comes to 6.4 mm, just within what a dark-adapted eye utilizes.

In your telescope

In a telescope with a focal length of 1200 mm, this eyepiece provides approximately 38x with a true field of view of about 1.29 degrees. For your own telescope: true field of view = 57.3 x field stop divided by the telescope's focal length.

The effective field stop of this model is 27.0 mm.

Featured accessories

A TeleVue 2x or 3x Barlow lens doubles or triples the magnification of any Ploessl eyepiece without any loss of quality; two Ploessl eyepieces plus a Barlow lens thus cover four magnification levels. Models 25 mm and larger also accept the Dioptrx astigmatism corrector.

For whom yes and for whom no

• ✓ The maximum field at 1.25 inches for a neat price
• ✓ Eyeglass wearers
• ✓ Observing under a dark sky
• ✗ Fast telescopes under a light sky
• For more contrast, see the Panoptic 24mm.

Specifications

You can find the complete product line for this merk at the TeleVue merk Page.