Orion 5453 - User Manual

Orion
®
Premium 20-Piece 1.25"
Color Planetary Filter Set
#5453
INSTRUCTION MANUAL
IN 538 Rev. A 2/15
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Summary

Color Eyepiece Filters

How They Work

Explains how color filters enhance contrast by transmitting specific light colors and blocking others.

Attaching the Filters

Stacking Filters

Photography

Change Filters Quickly and Safely Without Interrupting Observing or Photography

Filter Descriptions

Numbering;Naming of Filters

Explains that filters are identified by color and Wratten number based on the Kodak/Wratten system.

Luminance transmittance %

Defines Luminance Transmittance (LT %) and its impact on telescope aperture and viewing conditions.

Types of Filters

Visible spectrum transmission graphs

Quick lookup matrix

Describes the matrix found in the storage box lid as a quick reference for filter usage on different celestial targets.

Description and Uses for Individual Filters

#8 Lt. Yellow

Longpass filter blocking wavelengths below 465nm, enhancing red/orange features, lunar detail, and planetary features.

#11 Yellow-Green

Color correction filter, 40% transmission, enhances lunar glare reduction and planetary detail.

#12 Yellow

Minus blue filter, 74% transmission, enhances contrast on Mercury, Mars features, and Jupiter.

#15 Deep Yellow

Longpass filter (below 510nm), 6% transmission, enhances planetary contrast and Saturn's rings.

#21 Orange

Longpass filter (below 530nm), 46% transmission, enhances planetary surface features and Jupiter's belts.

#23 A Lt. Red

Longpass filter (below 550nm), 25% transmission, enhances planetary contrast and Saturn's features.

#25 Red

Longpass filter (below 580nm), 14% transmission, enhances planetary contrast, Venus details, and Saturn's rings.

#29 Deep Red

Longpass filter (below 600nm), 6% transmission, enhances planetary contrast and collimating large telescopes.

#30 Lt. Magenta

Green absorption filter, 27% transmission, enhances red/blue features on Mars and Uranus/Neptune contrast.

#32 Magenta

Minus green filter, 13% transmission, enhances red/blue features on Mars and Uranus/Neptune contrast.

#38 A Blue

Absorbs red/green light, 17% transmission, enhances Venus/Mars features and Jupiter/Saturn belts.

#44 A Lt. Blue-Green

Minus red filter, 14% transmission, enhances lunar transient phenomenon and Mars terminator clouds.

#46 Deep Blue

Absorption filter, 2% transmission, enhances Venus features, lunar detail, and Mars blue clearing.

#47 Violet

Blue tricolor filter, 3% transmission, enhances Venus features, lunar detail, and Mars polar caps.

#56 Lt. Green

Absorption filter, 53% transmission, enhances lunar detail, Mars dust storms, and Jupiter/Saturn belts.

#57 Med. Green

Absorption filter, 33% transmission, enhances Mercury/sky contrast, lunar detail, and Uranus/Neptune contrast.

#58 Green

Green tricolor filter, 24% transmission, enhances Venus features, Mars details, and Jupiter/Saturn features.

#64 Blue-Green

Minus red absorption filter, 25% transmission, enhances ice fogs and polar hazes on Mars.

#80 A Med. Blue

Light balancing filter, 28% transmission, enhances lunar contrast, Venus glare, and planetary belts.

#82 A Lt. Blue

Cooling light balancing filter, 73% transmission, enhances low contrast areas on planets and structure in galaxies.

Care and Storage

One-Year Limited Warranty

Orion 5453 Specifications