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| ITEM IS SHIPPED WITH A LOW VALUE!!! |
| Category:
Lenses
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| Start Price: |
USD 119.99 |
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| Current Price: |
USD 119.99 |
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| Start Time: |
11/11/2008 |
| End Time: |
11/30/2008 |
| Location: |
Clear Skies! |
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Meade F6.3 CCD Focal Reducer/Field Flattener #07545 Brand New In Box!!! This item sells for $139.99 USD in stores!! (Excellent to use with the Meade DSI and PRO Imagers and other imaging systems!) Item# 07545 ALL ITEMS ARE SHIPPED WITH A LOW VALUE!!! The Meade Series 4000 f/6.3 Focal Reducer/Field Flattener (FR/FF) is designed for use with Schmidt-Cassegrain telescopes, of any aperture, using standard 2-24 (2-inch diameter, 24 threads per inch) models and on other SCT brands as well. The FR/FF unit consists of four lenses in two groups, with all air-to-glass surfaces being multi-coated for maximum light transmission and image contrast. The FR/FF not only reduces the effective focal ratio of the main telescope's optical system by a factor of 0.63, but it significantly improves edge-of-field resolution by flattening the slightly curved focal plane inherent in the Schmidt-Cassegrain design. It yields many of the advantages of an f/6.3 SCT telescope. Visual UseFor visual observing applications thread the FR/FF on to the SCT's rear cell, followed by the telescope's 1.25-inch diagonal prism or 2-inch diagonal mirror, followed in turn by an eyepiece. Use of the FR/FF in a visual mode results in 36 percent lower magnifying power and 56 percent more field of view than use of the same eyepiece without the FR/FF. Photographic UseThe FR/FF may be used in conjunction with a standard T-Adapter or Off-Axis Guider on f/10 SCT's and in such applications the unit reduces effective photographic exposure times by about 60%. Astrophotographers will find that they not only achieve a much wider actual field of view but also that guiding is much less demanding at the shorter effective focal length, and for shorter periods of time, than is the case without the FR/FF. The FR/FF will achieve satisfactory photographic results with an f/6.3 SCT, but the edge of the photographic field will be vignetted. CCD ImagingThe FR/FF is a particularly valuable accessory when used in conjunction with a CCD imager. Its reduced image size helps in locating and centering an image on a relatively small CCD chip. Payment Methods: Paypal Money Order (Please make sure its an international MO!) Personal Check (Purchases made with personal check or money order must be deemed negotiable before any goods can be shipped out!) MasterCard/Visa Taxes: Canadian Residents: Ontario 8% PST, 5% GST, Maritime Provinces 13% HST, Rest Of Canada 5% GST. United States: No Taxes! International: No Taxes! Shipping Cost: Shipping (Free) in the United States and Canada. (Excluding Hawaii, Alaska and Canadian Northern Territories!) International orders $15.99 USD (Air Delivery!) Interested in other astronomy items then the ones you see I have listed! Feel free to email me I can usually get accessories for $10.00 to $20.00 dollars off regular dealer prices, I will make an EBay listing for you!
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