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may be reproduced, copied, modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.
A N E M P L O Y E E - O W N E D C O M P A N Y
Corporate Offices:
89 Hangar Way, Watsonville CA 95076 - USA
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International:
+1(831) 763-7000
Customer Support:
IX. Specifications
Observer 90mm EQ Refractor
Lens aperture:
90mm (3.5")
Lens assembly:
Achromatic doublet
Lens coating:
Fully MgF2 coated
Focal length:
900mm
Focal ratio:
f/10
Focuser
:
Rack-and-pinion, accepts 1.25"
accessories
Eyepieces:
25mm and 10mm Plossl, fully
coated, 1.25" barrel diameter,
threaded for Orion filters
Eyepiece magnification:
36x (25mm eyepiece) and 90x
(10mm eyepiece)
Finder scope:
6x30 achromatic
Diagonal:
90-degree mirror star diagonal
Mount:
German equatorial
Tripod:
Aluminum
Total instrument weight:
16 lbs., 12.2 oz.
Observer 114mm EQ Reflector
Primary mirror diameter:
114mm (4.5")
Primary mirror coating:
Aluminum with silicon dioxide
(SiO2) overcoat
Secondary mirror
minor axis dia.:
35.2mm
Central obstruction
37.4mm
Focal length:
500mm
Focal ratio:
f/4.4
Focuser:
Rack-and-pinion, accepts 1.25"
accessories
Eyepieces:
25mm and 10mm Plossl, fully
coated, 1.25" barrel diameter,
threaded for Orion filters
Eyepiece magnification:
20x (25mm eyepiece) and 50x
(10mm eyepiece)
Finder scope:
Red dot finder scope
Mount:
German equatorial
Tripod:
Aluminum
Total instrument weight:
16 lbs., 1.5 oz.
Observer 134mm EQ Reflector
Primary mirror diameter:
134mm (5.3")
Primary mirror coating:
Aluminum with silicon dioxide
(SiO2) overcoat
Secondary mirror
minor axis dia.:
43mm
Central obstruction
39.8mm
Focal length:
650mm
Focal ratio:
f/4.8
Focuser:
Rack-and-pinion, accepts 1.25"
accessories
Eyepieces:
25mm and 10mm Plossl, fully
coated, 1.25" barrel diameter,
threaded for Orion filters
Eyepiece magnification:
26x (25mm eyepiece) and 65x
(10mm eyepiece)
Finder scope:
6x30 achromatic
Mount:
German equatorial
Tripod:
Aluminum
Total instrument weight:
18 lbs., 4.3 oz.
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 instru-
ment that proves to be defective, 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 instru-
ment has been abused, mishandled, or modified, nor does it
apply to normal wear and tear. This warranty gives you specific
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 con-
sumer goods remain fully applicable.
For fur ther warranty information, please visit www.
OrionTelescopes.com/warranty.