Versatile Zoom Functionality: 8-24mm zoom eyepiece provides steplessly variable focal length to use different magnifications anywhere between 8 and 24mm; concentrate on using one eyepiece and keep object in view while slowly increasing the magnification
Advanced Aspherical Glass Design: Featuring premium aspherical glass lenses with 6-element fully multi-coated technology; effectively reduces image distortion and aberrations for providing clearer high-contrast and wider view of astronomical picture
Precision Adjustment System: The rotational zoom mechanism enables precise focal length adjustment from 24mm to 8mm; Optimized for 15-20mm eye relief and 43-66 degree apparent field of view accommodates both eyeglass wearers and direct observation
New Upgrade: Astromania Upgrade Edition OIII Filter is used for capturing the gas tails and gas flows of comets; with the two brightest C2 emission lines at wavelengths of 511 and 514 nm; the full width at half maximum wavelength is less than 15 nm
High transmittance: Within the wavelength range of 504 nanometers to 525 nanometers; only the double-ionized oxygen line with wavelengths between 510 nanometers and 518 nanometers passes through with 99% of the wavelengths