Apertura Adjustable Flattener for 60EDR and 72EDR

Apertura Adjustable Full Frame Flattener
for 60EDR or 72EDR Refractors

The Apertura Adjustable Flattener is designed to flatten the photographic field when used with either the Apertura 60EDR or the Apertura 72EDR refractor telescopes and your DSLR camera. This is a full frame flattener and is threaded to accept 2" filters.

The camera side of the adjustable flattener presents M48 threads to accept a wide (M48 instead of M42) T-ring (sold separately) that will, in turn, mount to your DSLR camera body.

The telescope side of the full frame flattener includes a built-in M54 threaded adapter that accepts the rotator of the 60 mm or 72 mm EDR telescope. To access the rotator threads, simply remove the end collar. The inside of the M54 adapter is threaded to accept 2" filters.

In order to achieve the proper back focus, the flattener has approximately 5 mm of adjustability. The adjustment distances listed below assume a starting point of 55 mm, which is standard for a DSLR with T-ring. Therefore, keep in mind that if you use an imaging camera instead of a DSLR, you will need to use spacers to reach 55 mm, and then make adjustments on the flattener itself to accommodate the 60EDR or the 72EDR.

• 60EDR Flattener Adjustment: 3 mm

• 60EDR Total Backfocus: 58 mm (55 mm + 3 mm)

• 72EDR Flattener Adjustment: 1.5 mm

• 72EDR Total Backfocus: 56.5 mm (55 mm + 1.5 mm)

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!