Tele Vue 4X Powermate - 2" - PMT-4201 Eyepiece Case # of Elements: 5

# of Elements: 5

blackened lens edges

I looked to bring Nagler-like performance to the 60+ degree field class with the TeleVue Telescope Eyepiece Panoptic series

Pixel Size: 2

Celestron Outland X 8x42 Binoculars Specifications

Tele Vue 4X Powermate - 2" - PMT-4201 Eyepiece Case # of Elements: 5About the TeleVue 4X Powermate 2" To understand the TeleVue Powermate, we must first understand the Barlow lens. Barlows amplify the power of a telescope. They can be considered "focal reducers" for eyepieces, or "focal extenders" for objectives. Terence Dickenson, in his Barlow test report in Sky and Telescope, says: "Technology has erased the old objections. A modern Barlow will not degrade your telescope'''s optics. Anyone telling you otherwise is