Orion 5564 Users Manual

: Orion Orion-5564-Users-Manual-497730 orion-5564-users-manual-497730 orion pdf

Open the PDF directly: View PDF .
Page Count: 1

IR-Cut Filter

Transmission

Spectrum

ULTRAVIOLET INFRARED

Wavelength (nm)

400 500 600 700 800

VIOLET BLUE GREEN YELLOW ORANGE RED

IN 322 Rev. B 02/09

Luminance / IR

Cutoff Filter, 1.25"

#5564

INSTRUCTION MANUAL

The Orion Luminance/IR (infrared) Cutoff filter is a useful accessory

for any monochrome imaging system that does not feature an inte-

grated infrared blocking filter. The filter has been designed to block all

infrared light with a wavelength above approximately 700 nanometers

(nm). Since monochrome CCD cameras are sensitive to all light, infra-

red light can contaminate digital images of the night sky by causing

image blurring, glare, abnormal color, reduced contrast, and bloated

stars. By preventing infrared light from being absorbed by an imaging

chip, the Luminance/IR Cutoff filter enables you to create images of

the highest quality and detail. Of course, if you wish to image the sky

in the infrared portion of the spectrum, make sure the filter is removed.

It is also a good idea to remove the Luminance/IR Cutoff if using a line

filter, such as an H-alpha line filter, as these generally have IR cutoff

features built-in. The Luminance/IR Cutoff filter may interfere with the

performance of such line filters.

The Luminance/IR Cutoff filter is a dichroic filter design which features

multiple-layer coatings to ensure maximum transmission of desired

wavelength light, while reflecting unwanted infrared light completely.

Due to the dichroic design, the Luminance/IR Cutoff filter has a reflec-

tive appearance. Dichroic filters have hard microscopic layers of coat-

ing that do not fade significantly with proper care and usage.

In order to image through the Luminance/IR Cutoff filter you will need

to install it directly to your imaging camera. Install the filter by thread-

ing it onto the inserted “nosepiece” section of the imager. With the filter

installed, all light collected by the imager will be filtered appropriately.

Customer Support (800)676-1343

E-mail: support@telescope.com

Corporate Offices (831) 763-7000

89 Hangar Way, Watsonville, CA 95076

Providing Exceptional Consumer Optical Products Since 1975

One-Year Limited Warranty

This Orion Luminance/IR Cutoff Filter 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 to:

Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076.

This warranty specifically does not cover abuse, modification, mishandling, self-repair, or normal wear and tear (includ-

ing mold growth).

If the product is not registered, proof of purchase (such as a copy of the original invoice) is required. This warranty

gives you specific legal rights, and you may also have other rights, which vary from state to state. For further warranty

service information, contact: Customer Service Department, Orion Telescopes.