Explore Scientific 5.5mm 100 Degree Argon Purged Eyepiece
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Explore Scientific 5.5mm 100 Degree Argon Purged Eyepiece

This eyepiece should be a good match to short focal length refractors and fast Newtonian optical systems.

This newest addition to the Explore Scientific 100 Degree series was introduced with Argon as opposed to Nitrogen purging. All Explore Scientific 82, 100, and 120 degree eyepieces are expected to make this transition in 2014. In practical terms there is little difference in performance between these two gasses under the conditions an eyepiece will be used in.

Explore STAR Warranty

All Explore Scientific Products sold within North America are covered by a standard one year limited warranty; however, when the new product is registered within 60 days of purchase, it is covered under the Explore STAR Transferable North America Unlimited Lifetime Product Warranty program. The full details of this extended warranty are available here (PDF, opens in separate window.)


Our price: $414.99

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Security Seals
Eyepiece Focal Length 5.5 mm
Apparent Field 100 degrees
Eye Relief 10.5 mm
Barrel Diameter 2 inches
Eyepiece Weight 21.6 ounces
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