ASA - 4" Ritchey-Chrétien Field Flattener

Be the first to review this product

Review and collect 50 points. Call for pricing.

When utilizing a Ritchey-Chretien telescope system, it should be utilized with a field-flattening accessory lens to accomplish a bigger useful field of view over a truly flat image plane.

SKU: ASA-4RCKORRFL
Manufactured by:
ASA - Astrosysteme Austria
 

Product Description

ASA 4" Ritchey-Chrétien Flattener Corrector

 

When utilizing a Ritchey-Chretien telescope system, it should be utilized with a field-flattening accessory lens to accomplish a bigger useful field of view over a truly flat image plane. This is due to the fact that a Ritchey-Chretien scope without a corrector is just barely superior to an established 2-mirror Cassegrain scope. ASA gives this corrector lens, the 4" Ritchey-Chretien Field Flattener, which will impressively enhance your imaging results. This corrector lens will flatten the last picture over a 80mm diameter image circle on your Ritchey-Chretien scope.

Given its extensive cell width, this ASA 4" Ritchey-Chretien Field Flattener will create an 80mm image circle which is more than sufficient coverage for a Kodak KAF-16803 CCD Sensor (which is 36.8mm x 36.8mm in size)! This ASA lens is somewhat not the same as the different correctors, in that it is fabricated from two lenses, each 92mm (3.622") in diameter, which can be incorporated into a corrector framework which is specific to the customer's current telescope and application! By adjusting the air space between these lenses, ASA can tailor this flattener lens to suit any bigger Ritchey-Chretien telescope.

Information acquired by ASA's physicist and architect, Philipp Keller demonstrates that even at a field radius of 30mm, the vast majority of the energy contained inside of a well-focused star image falls inside of the Airy diffraction plate at a particular wavelength. The outcomes are pinpoint stars from the edge of your CCD's field all the way to the center of the image. A (Ritchey-Chretien) telescope framework with this field flattening lens installed will provide imaging performance which is vastly improved than typical seeing limits will allow. Your star pictures will thus be limited primarily by seeing conditions at any given time.

Specifications

Name ASA - 4" Ritchey-Chrétien Field Flattener
Manufacturer ASA - Astrosysteme Austria
Model ASA-4RCKORRFL

Reviews

How do you rate this product? *
Quality
Value