The Explore Scientific 92° Argon 12mm LER Eyepiece is the most powerful of the Explore Scientific LER range. These eyepieces are designed to balance the modern demands of field sharpness over a wide apparent field, with long eye relief, which is of particular benefit to those who wear glasses while observing.
The Explore Scientific 92° Argon 17mm LER Eyepiece is the first in the line of Explore Scientific's 92° range of Argon-purged eyepieces. These eyepieces are designed to balance the modern demands of field sharpness over a wide apparent field, with long eye relief, which is of particular benefit to those who wear glasses while observing.