Vixen Telescope PORTA II-SDE72SS

SDE72SS Optical Tube Assembly

The SD apochromatic lens suppresses chromatic aberration to an imperceptible level. Despite its short optical tube, the SDE72SS not only delivers sharp images in visual observation but also produces impressive astrophotographs of nebulae and star clusters when used with a dedicated focal reducer (sold separately).

It features a dual-speed focuser that enables both coarse and fine adjustments, providing precise focusing for imaging.

The optical tube measures 365 mm in length and can be shortened to 307 mm when the dew shield is retracted. The optical tube weighs approximately 2.5 kg (net weight 2.2 kg) and is suited when combined with the AP mount.

For more information about the SDE72SS, click here.

PORTA II Altazimuth Mount, allowing Intuitive Operation

The PORTA II mount is a long-selling altazimuth model, which has been highly acclaimed for its outstanding operability and stability.

The optical tube can be freely moved by hand in any direction, and it remains securely in place when released, thanks to its friction-based mechanism. It enables you to smoothly point the telescope toward celestial objects you want to view with quick and comfortable operation.

Slow-motion Control Handles

After positioning the telescope optical tube in the desired direction using the friction-stop control, fine adjustments can be made with the two slow-motion control handles. Since the mount employs full-circle slow-motion gears, the optical tube can be moved with exceptional smoothness and precision. The handles can be repositioned in 45-degree increments, allowing you to adjust them to a comfortable position according to the type and size of the optical tube assembly.

Dovetail-plate Mounting Block for Easy Attachment and Detachment of the Optical Tube Unit

The telescope tube attachment features a standard dovetail plate mounting block, allowing quick, easy one-touch attachment and removal of an optical tube.
It is compatible not only with the standard AE81M optical tube but also with Vixen optical tubes* used on the SX series mounts.

*Compatible with optical tubes weighing approximately 5 kg or less and with an outer diameter of 160 mm or less.

Compartment for Tools

Tools for adjusting the stiffness of the friction-stop control mechanism and for repositioning the slow-motion control handles are stored in the compartment beneath the black rubber cover on the mount head. So, your tools are always within reach.

Accessory Tray

A round accessory tray is provided for small items such as eyepieces or cameras. It is useful during nighttime astronomical observations, when small parts are easily misplaced or lost.

Detachable PORTA II Mount Head

The PORTA II mount head can be detached from the tripod by loosening the fixing bolt underneath the tripod head, making it convenient for transport and storage. It can also be mounted on other Vixen tripods, such as the APP-TL130.
The PORTA II mount head is compatible with the APP-TL130, ASC-CB90, and SXG-HAL130 tripods.