Apertura 8″ f/4 Imaging Newtonian OTA

The Apertura 8″ f/4 Imaging Newtonian OTA has everything you need for wide-field imaging!

Newtonian Telescope Build

The 32″ long OTA is made of rolled steel for added durability and has a diameter of 9″. The 8″ f/4 Newtonian optical tube assembly has a center-spotted parabolic primary mirror. The four secondary mirror vanes are as thin as possible while maintaining stability. Equipped with diffraction-limited optics, the parabolic primary mirror is housed in an aluminum cell fitted with six “push/pull” collimation knobs so that you can collimate without tools.

Focuser

The dual-speed 2″ Crayford focuser includes linear bearings and a monorail that create a sturdy draw tube and reduce drag under heavy loads. Achieve focus with the larger of the two knobs, and then tweak your focus with the small 10:1 micro-focusing knob. The two other knobs on the focuser are a tension knob, allowing adjustments for the drag on the draw tube to match the weight of the load, and a focuser lock. A 35mm extension tube and a 2″ to 1.25″ compression ring adapter are included to add to the OTA’s viewing capabilities.

Mounting the Apertura OTA

The 8″ Newtonian can be attached to a wide variety of equatorial mounts. A pair of felt-lined split tube rings is included with the OTA. These rings can be attached by using either the Vixen-sized dovetail that is included or add your own Losmandy-style dovetail plate to the rings (sold separately). The High Point 8″ Newtonian OTA also has a dovetailed finder adapter attached and accepts the included 50mm finderscope bracket. An 8×50 straight-through optical finderscope slides easily into this bracket.

Cooling Feature

Sometimes it seems to take forever for your telescope to cool to ambient temperature. The High Point 8″ f/4 Imaging Newtonian has a built-in cooling fan will help get your imaging faster. This low-vibration fan is mounted on the primary mirror cell and is powered by a battery pack that holds eight (8) AA batteries (batteries not included).

This Product Comes with the Apertura Absolute Warranty!

• Two-Year Warranty against product defects.

 

• Three-Year Accident Replacement Program that begins after your initial 2 year warranty expires.

 

• Your Apertura Absolute Warranty is transferable.

 

Download a copy of the Apertura Absolute Warranty for more information on this program, how to make a claim, and why it is important to keep your original receipt and the product’s original boxes & packaging!