The 12.5 mm Plössl is a fine all-round eyepiece. It delivers a good performance on moon and planets and can be used very well for photography with eyepiece projection. This Plössl can also be used for observing compact deep-sky objects like nebulae or star clusters. It is a good complement to the 25 mm overview eyepiece and offers already nice viewing comfort.

Through the four-element design, the Plössl is a true all-rouder. It does not introduce an additional chromatic aberration to the system, in opposite to more simple eyepieces with fewer elements. As a consequence, these eyepieces can be very well used for observing moon and planets with higher magnifications.

At lower magnifications, Plössl eyepieces are well suited for observing nebulae, star clusters and galaxies, they convince with a field of view relatively free of distortion. Astrophotographers can also work well with Plössl eyepieces, as they are well suited for eyepiece projection. The MgF₂ coating prevents disturbing reflections and provide good contrast.However, many projection adapters are too narrow for the Plössl eyepieces with 32mm or 40mm focal length.

Characteristics:

• Focal length 12.5mm
• Apparent FOV 50°
• 4 lenses in 2 groups
• Body made of metal, rubber riffle for better grip
• Foldable rubber eyecup
• 1¼" barrel with filter thread

Delivery:

• TS Plossl 12.5mm eyepiece 1¼"