Celestron Oxygen III Narrowband Filter 2" (93624)

Celestron Oxygen III Narrowband Filter 2" (93624)The 2" OIII narrowband filter isolates just the two doubly ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between the black sky background and the faint photons of OIII light needed for detailed views of the Veil, Ring, Dumbbell, Crescent and Orion nebulae, among other objects. Each filter has an ultra hard, vacuum deposited

98") Magnification of Eyepiece 1 36x Focal Length of Eyepiece 2 10mm (0

Image fidelity is maximized utilizing glass matched multicoatings and anti-reflection surfaces throughout the eyepiece

These classically styled binoculars use their Porro prism optical design to provide optimal image clarity and depth of field

Elements (7)

4 Minimum Magnification 21 Maximum Magnification 295 Light Gathering (compared to next size down) 40% General Info Focuser Primary Mirror OTA Length (Retract/Ext

Guiding this way will correct for tracking errors

Just as Delos eyepieces were developed based on TeleVue's Ethos eyepiece design advancements

The 48mm T-Adapter has a larger T-Thread opening

75"/25" OTA Outer Diameter 168mm OTA Weight (with accessories) 6

the Omni CG-4 is built very well

Use the Tour Mode

the 8" RASA can provide an almost real-time observing experience