Explore Scientific 9 mm 120° Giant Field Eyepiece

Pushing the boundaries of eyepiece design, Explore Scientific spent years developing the 120 degree eyepiece, adding to it the bonus of an Argon purged interior space ensuring that your investment is immune to the outside environment and your eyepiece never falls victim to a damp night.

Though Carl Zeiss made eyepieces of 110 and 120 degrees apparent field for use in U-boat periscopes before World War II, eypieces with this wide of a field of view have rarely been seen for astronomy use, particularly for the amateur market.

Like all Explore Scientific eyepieces, the lens elements of the 120° eypiece are meticulously cleaned and aligned before being installed in their precision machined lens barrels.

Each lens and lens grouping have EMD (Enhanced Multilayer Deposition) Coatings and are edge-blackened to eliminate light scatter and maintain image contrast. Contrast is further enhanced with baffles that mask and deflect unwanted stray light.

These eyepieces with their enormous apparent field of view give the ultimate panoramic experience and with such a wide field, your eye can truly relax and bring in even the faintest details.

Each 120° Series Argon-Purged Waterproof eyepiece is internally sealed an purged with inert, dry Argon gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus, and to maximate the life of the internal coatings. Waterproof eyepieces are easier to clean, and there is no  risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements.

To make sure, every 120° eyepiece is tested by submering them down to 1 meter of water for 30 minutes. Additionally every eyepiece will be tested extensively from the manufacturer before shipment.


Delivery contains:

• Eyepiece
  
• Dustcaps