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4.5 f/5 Parabolic Primary Mirror Item #: 601-20500
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MSRP:	$475.00
Sale Price:	$245.95
You Save:	$229.05

Shipping Price:

$16.37

Product Description

PARKS 4-1/2" f/5 Primary Mirror, focal length 22"/570mm.

Parks Parabolic Primary Mirrors are made of premium fine annealed, low expansion Pyrex, with a full 1:6 ratio of thickness to diameter. Individually hand-figured by a skilled optician, each disk produces a good diffraction ring with no turned edges or edge zones. The optical surface exhibits straight Ronchi bands edge to edge under the sensitive double pass auto-collimation test. Aluminized and silicon monoxide over coated for long lasting performance.

PARKS OPTICAL Certificate of Optical Quality and Authenticity

It is hereby certified that this mirror has passed a series of critical optical precision tests and carries a full lifetime warranty from PARKS OPTICAL against manufacturing and material defects. PARKS OPTICAL further guarantees that this mirror:

* Was manufactured from fine annealed, low-expansion Pyrex glass.
* Is guaranteed to be diffraction-limited for superb visual and photographic images.
* Passes the sensitive, double-pass autocollimation test with a 200 Line Ronchi Grating.
* Passes the Foucault test for paraboloidal accuracy.
* Will meet or surpass the Rayleigh Criterion of optical precision.
* Was individually figured, tested, and serialized by Parks Optical.

Shipping/Handling

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 - Click Here.