Orion StarBlast II 4.5 EQ User Manual

14
9. Specifications
Primary mirror: 4.5" (114mm) diameter, parabolic, center marked
Effective focal length: 450mm
Focal ratio: f/3.9
Minor axis of secondary mirror: 1.3" (34mm)
Mirror coatings: Aluminum with silocon dioxide (SiO2) overcoat
Focuser: Rack-and-pinion, accepts 1.25" eyepieces
Eyepieces: 25mm and 10mm Sirius Plossl eyepieces, fully coat-
ed with multi-coatings, 1.25" barrel diameter, threaded for Orion
lters
Eyepiece magnication: 18x (with 25mm eyepiece) and 75x
(with 10mm eyepiece)
Finder scope: EZ Finder II reex sight
Mount: EQ-1, German equatorial
Tripod: Aluminum
Motor drives: Optional
Total instrument weight: 17 lbs.
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 benet 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 defec-
tive, provided it is returned postage paid. Proof of purchase (such as a copy of the original receipt) is required. This
warranty is only valid in the country of purchase.
This warranty does not apply if, in Orion’s judgment, the instrument has been abused, mishandled, or modied, nor
does it apply to normal wear and tear. This warranty gives you specic legal rights. It is not intended to remove or
restrict your other legal rights under applicable local consumer law; your state or national statutory consumer rights
governing the sale of consumer goods remain fully applicable.
For further warranty information, please visit www.OrionTelescopes.com/warranty.
Orion
®
Telescopes & Binoculars
Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA
Customer Support: www.OrionTelescopes.com/contactus
Copyright © 2017 Orion Telescopes & Binoculars
All Rights Reserved. No part of this product instruction or any of its contents may be reproduced, copied, modified or adapted, without the prior
written consent of Orion Telescopes & Binoculars.

Orion StarBlast II 4.5 EQ Specifications

Optical Specifications

primary mirror diameter	114 mm
effective focal length	450 mm
focal ratio	f/3.9
minor axis of secondary mirror	34 mm

Eyepieces

eyepiece diameter	1.25 inches
eyepiece magnification with 25mm eyepiece	18x
eyepiece magnification with 10mm eyepiece	75x

Physical Characteristics

total instrument weight	17 lbs
mount type	EQ-1, German equatorial
tripod material	Aluminum