Optical Tube Assemblies
Wednesday 08 July, 2020
25mm Silver Series Plossl – 1.25”
4.5 f/5 O.T.A.
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The Parks 4.5" f/5 Optical Tube Assembly (OTA) is ideal for the novice observer. It features the same high quality components and craftsmanship used on larger Parks telescopes.
Primary Mirror Diameter: 4.5"/114mm
Focal Length: 22.5"/570mm
Focal ratio: f/5
Magnification (with 25mm eyepiece): 23x
Secondary Mirror: 1.33"/34mm
Obstruction of Primary by Secondary: 9%
Tube Length: 22"/56cm
Tube OD: 5.5"/14cm
Focuser: 1.25" with 2" of travel
Ocular: One 25mm focal-length, 1.25" Parks Optical Gold Series
Finderscope: 6x30 Polar Finderscope
Weight: 6 lb
All product specifications, prices and shipping charges are subject to change without notice. Prices, in US Dollars, do not include any applicable state taxes and/or customs fees. Shipping/Handling estimates are intended for the 48 Contiguous US States only. Alaska, Hawaii and international shipments are quoted on a case by case basis. Please contact Parks Directly -
10 f/5 O.T.A.
10 f/4 & f/15 HIT O.T.A.
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