TeleVue Plössl 25mm 50° Eyepiece - 1.25"

A Balanced Perspective for Medium Power

For many observers, the 25mm focal length represents the "sweet spot" for mid-range scanning. In an 8" f/10 Schmidt-Cassegrain, it provides 80x magnification and a 2.5mm exit pupil, settings that are frequently cited by experts as optimal for resolving globular clusters and larger planetary nebulae. Unlike the TeleVue 32mm Plössl, which is often used for locating objects, the 25mm begins to reveal the intricate textures within those objects.

Because it shares the same high-index glass and optical pedigree as its larger siblings, the 25mm Plössl maintains exceptional throughput. This makes it a preferred choice for viewing faint, low-surface-brightness targets where complex, multi-lens wide-field eyepieces might introduce unwanted light loss.

TeleVue Optical Integrity

Every TeleVue Plössl 25mm is built to deliver a neutral color rendition and a jet-black sky background. By minimizing internal reflections and scattering, TeleVue ensures that the subtle color differences on the Jovian cloud belts or the delicate hues of double stars are rendered accurately.

• Blackened Lens Edges: To prevent stray light from degrading contrast, all lens edges are chemically blackened, and internal surfaces are multi-threaded for maximum light absorption.
• Parfocal Convenience: The 25mm Plössl is parfocal with the 32mm and smaller focal lengths in the series. This allows for seamless transitions between powers without the need for significant refocusing, which is critical during nights of steady seeing.
• Mechanical Precision: The chrome-plated barrel is machined to tight tolerances to ensure it remains perfectly centered in the focuser, preserving the optical alignment of your entire system.

Viewing Comfort and Eye Placement

With 17mm of eye relief, the 25mm Plössl provides a comfortable viewing experience for most users. While slightly shorter than the 22mm found on the TeleVue 32mm Plössl, it still allows many eyeglass wearers to see the full field without difficulty. For those who do not wear glasses, the eyepiece offers a stable eye position that minimizes the chance of image blackouts.

• Rubber Eyeguard: The included fold-down rubber eyeguard helps to position the eye at the correct distance and shields the observer from peripheral light pollution.
• Compact Form Factor: The lightweight design makes this an ideal candidate for smaller telescopes and travel setups where larger, heavier eyepieces would compromise the mount's balance.

Why Choose the 25mm Plössl?

In a collection of eyepieces, the 25mm Plössl often becomes the most used accessory. It is lightweight, compact, and provides higher magnification than a 32mm while maintaining a much brighter exit pupil than a 15mm or 11mm. Whether you are using it in a binoviewer for a high-fidelity lunar experience or as your primary deep-sky tool, the TeleVue 25mm Plössl offers professional-grade performance in a simple, elegant design.