Vixen AM-OO-3842 User Manual

Porta mount

Porta Mount

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Design

Our lightweight alt-az "Porta" mount

can be the heart of an exceptionally
portable telescope/mount system.

PORTA features a newly designed

friction system for quickly pointing
toward the target and tracking it with

360° slow-motion controls. No fumbling
with clutches or sectional slow-motion

controls! Leave the heavy

counterweights with the equatorials:
simply balance scopes up to 155mm

diameter (and up to 11-lbs/5kg) on the

altitude axis and start viewing!

Standard Vixen dovetail mounting slot
with lock and safety screw is fully

SPHINX/GP-compatible. Mounting slot

removes to reveal ¼"-20 and M8-1.25
threaded holes for custom mounting

solutions. PORTA mount features slo-
mo worm with 120-tooth worm gears,

switchable slow-motion knobs, tension

adjustment and disassembly tools,

built-in tool storage bay, tripod tray and aluminum legs.

Tripod height to top of tripod base adjusts from 27.75" to 47.75" / 70cm to 121cm.

Recommended Accessories

Triangle Accessory Tray

Metal tripod tray to hold your observing accessories and lock tripod legs into
place. Fits Vixen and other branded tripods (bolt holes spaced about 9-1/2"
inches apart) including current aluminum tripods for GP, GP-D2, GP2, GP-DX,

GP-E, Sphinx, Porta (invert knob-holder on spreader) and Custom-D mounts.
Model # AM-OO-3842 Weight: 510 grams / 18 oz

Flexible Slow Motion Handle

Long flexible handle (290mm/11.5") achieves greater manual tracking
comfort and less vibration on GP-series, SP-series and PORTA mounts. Locks
directly on either axis of motion (also on optional Manual Operation Clutch of
equatorials). Order two for the ultimate slo-mo ride.
Model # AM-FA-8800

Alt-Az Simplicity

Portable, Easy Setup

and Take Down