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Paracorr
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TeleVue.com: Telescope Accessories > Paracorr > Imaging Use 3" |
BIG Paracorr Type-2 for 3" Focusers
Tele Vue's 3" BIG Paracorr Type-2, designed by Paul Dellechiaie, extends the Paracorr type 2's optical benefits for imaging applications by amateurs and professionals using CCD formats bigger than 30mm and as large as 52mm diagonal and paraboloids as fast as f/3. Back focal length has been extended to 80mm to allow for additional accessories to be placed in the optical path. The 5.1" length optical assembly is topped with a "stop" flange having 3.40"-24 pitch threads to mount camera adapters and spacer tubes. There is no visual advantage in using the 3" BIG Paracorr Type-2 over the 2" Paracorr Type-2.
View Big Paracorr Mechanical Drawing
From Our Blog
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BIG Paracorr User Profile: Jay Butler (5/31/17)
Jay says the BIG Paracorr Type-2 "gives me nice round stars without vignetting all the way out to the corners of my camera's KAF-16200 CCD. And whatever the seeing, the Big Paracorr gives me sharper and deeper images than I have ever been able to attain with other high-end equipment combinations."
BIG Paracorr Type-2 Product Introduction Video from Sky & Telescope
