ORION TELESCOPES & BINOCULARS 5302 Instruction Manual

Field flattener for eon 104mm ed-x2 triplet refractor

orion Field Flattener for Eon

104mm ED-X2 triplet refractor

The Orion Field Flattener for EON 104mm ED-X2 was designed exclusively for the EON 104

ED-X2 Triplet Apo Refractor, to flatten the focal plane for astro-imaging without affecting the focal

length of the telescope, even on full-frame camera sensors. For photography only, not visual use,

this high-performance 2" field flattener is highly recommended for obtaining the highest-quality

images with your EON 104.

This field flattener has an optimal backfocus distance of 55mm (distance from threaded attach-

ment plate to camera sensor). It comes with interchangeable, thread-on adapter plates, one with

42mm (T-mount) male threads, the other with wider, 48mm male threads (which are equivalent to

2" filter threads).

Figure 1. The Orion Field Flattener for EON 104mm ED-X2

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copied, modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.

instruction Manual

#5302

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IN 565 Rev. A 02/16

Table of Contents

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Page 1 Field Flattener for Eon 104mm ED-X2 triplet refractor #5302 The Orion Field Flattener for EON 104mm ED-X2 was designed exclusively for the EON 104 ED-X2 Triplet Apo Refractor, to flatten the focal plane for astro-imaging without affecting the focal length of the telescope, even on full-frame camera sensors.
Page 2 attaching the Field Flattener to a Dslr camera The field flattener’s 55mm backfocus distance is designed to work with most DSLR cameras without the need for any additional extension rings (Figure 2.1). A T-ring for the make and model of your camera is the only required accessory to attach the field flattener to your DSLR camera.
Page 3 DSLR camera body Field 2" collar on telescope T-ring Adapter Flattener plate (42mm (42mm 48mm) 48mm) Figure 2.1. Using the field flattener with a DSLR camera. 42mm 48mm) Adapter Field Camera Flattener plate Distance from CCD chip to Field Flattener T-threads should be 55mm 55mm “X”mm of additional spacing may...
Page 4 one-Year limited Warranty This Orion product is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defective, provided it is returned postage paid.