TeleVue Nagler 4.8mm Eyepiece (Pre-owned) Lunt Solar Telescopes a highly precise optical device

a highly precise optical device that isolates the Hα wavelength from the rest of the Sun’s emitted light

calibration ruler supports precise specimen measurements

This zero amp glow feature is implemented at the hardware level and does not require software control

Temperature Sensing control for 2 of the 4 heater ports

simply assemble the adjustment collar and the imager will replace any standard 23mm or 30mm eyepiece and plug directly in to your Mac (2MP max) or Windows (full 5MP) PC via standard USB

TeleVue Nagler 4.8mm Eyepiece (Pre-owned) Lunt Solar Telescopes a highly precise optical deviceIn excellent condition Specifications for Televue Nagler 4. 8 mm eyepieces ENA 4 8: Focal Length: 4. 8mm Apparent Field of View: 82 # of Elem.: 7 Barrel Dia.: 1 1 4" Eye relief: 7 Weight: 0. 33 lb 5. 3 oz Field Stop diameter: 6. 6mm Works in Bino Vue: Y