Optec NextGEN WideField 0.5X Telecompressor Lens

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Optec NextGEN WideField 0.5X Telecompressor Lens
$295.00
Item # OP-17406
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  • The Optec NextGEN WideField 0.5X Telecompressor Lens has improved color correction and back focus.
  • Especially designed for the Meade & Celestron f/10 SCT and SBIG ST-series CCD cameras.
  • The Optec NextGEN WideField 0.5X Telecompressor Lens provides a wide flat field across CCD chips having diagonals up to 17.5mm.
  • The system is optimized specifically for f/10 Schmidt-Cassegrain telescopes to allow for correction of the field curvature and spherical-chromatism.
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Optec NextGEN WideField 0.5X Telecompressor Lens

The Optec NGW (Next Generation WideField) telecompressor increases the effective speed of the Meade and Celestron Schmidt-Cassegrain telescopes from f/10 to f/5. This 1/2 times reduction in focal length allows for 4 times greater field area and 1/4 reduction in exposure time for extended surface objects such as bright nebulae. The system is optimized specifically for f/10 Schmidt-Cassegrain telescopes to allow for correction of the field curvature and spherical-chromatism that afflicts these types of instruments. At f/5, the maximum corrected field has a diameter of 17.5 mm at the image plane which makes the optic suitable for CCD cameras with imaging chips of the same diagonal dimension or smaller.

The optical design of the NextGEN 0.50X was done with Zemax and optimized for four field points using wavelengths of 450, 550 and 650 nm. The goal was for the smallest blur diameters for the four field points. The system was modeled using the actual optical prescription for a SCT with the inherit aberrations of this telescope. The resulting lens curvatures of this design was made without adjusting the radii to the optical lab's tool list. Custom tools were made for all surfaces

You will need to order a NEXGEN CCD Mounting Plate in order to attach this telecompressor to your CCD camera. Choose from a selection of mounting plates listed in the "Accessories" tab to your left.

If you do not see the mounting plate for your CCD camera, or you have any questions, please feel free to contact our Internet Sales Department by email or by phone at 1-800-483-6287. Thanks!

Optec Product Number: 17406

Additional Information

Additional Information

SKU OP-17406
Manufacturer Optec
Barrel Size Thread-on
Warranty 1 Year Warranty
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Included Items

Included Items

  • Optec NextGEN WideField 0.5X Telecompressor Lens
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