Focheggiatore micrometrico Dual-Speed Focuser (Cassegrain)

Shortly:

• high quality and precise micro focuser
• SC connection thread for Cassegrain and SC telescopes
• 1:09 fine reduction

The JMI EV-1c Dual-Speed ​​Event Horizon Telescope Focuser is a low-profile, friction-driven focuser designed for both the amateur and professional telescope markets.

The Crayford design puts high pressure on a metal drive shaft that bears against a 2.5" draw tube held in place by bearings on the opposite side. This direct surface-to-surface drive mechanism eliminates play and drawtube displacement, allowing for very fine adjustments. This makes this focuser fantastic for visual applications and a must for astrophotography with Cassegrain or Schmidt-Cassegrain optics.

Featuring a 2" black anodized aluminum focuser with dual speed drive, ball bearings, rubberized knobs and dual speed operation. The focuser supports up to 8 pounds and its two-speed manual control has 1:09 fine reduction . It also includes a compression ring to securely hold telescope eyepieces and accessories without scratching them. The adjustment screw presses against the ring, which tightens the eyepiece or accessory.