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Pentax S M42 "Screw Mount" Prime Focus Kit (1.25")

KPSM

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This Prime Focus Kit is suitable for: Prime Focus – In this imaging method the camera is connected directly to the telescope and placed at the "prime" focus of the telescope. The telescope becomes the camera lens. No eyepiece is used in this method. for Pentax S M42 "Screw Mount"

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$49.95

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Prime Focus Kit (1.25") for Pentax S M42 "Screw Mount" SLR Cameras



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If your scope accepts 2" eyepieces consider our True-2 adapter instead. If your scope accepts only 1.25" eyepieces this is the correct setup for Prime Focus. The included parts will allow you to couple your SLR or DSLR camera to a standard 1.25" eyepiece port for "prime focus" astrophotography. The money saving combo includes our popular 1.25" prime focus adapter (#T125) packaged along with the appropriate T-Ring for your brand of camera. Parts are "T" threaded for compatibility with many other adapters. All parts are CNC machined of aluminum, coated with a durable black anodized finish and internally baffled to reduce reflections. The 1.25" barrel is threaded to accept standard 1.25" Eyepiece Filters. See our optional clear glass Dust Filter (#T1FLT), recommended to help keep dust out of your camera.

This kit is suitable for:
Prime Focus – In this imaging method the camera is connected directly to the telescope and placed at the "prime" focus of the telescope. The telescope becomes the camera lens. No eyepiece is used in this method. This method provides the widest possible field of view, the shortest possible exposure time and moderate magnification. Typically used for imaging nebulae, galaxies and other large (but dim) deep sky objects.

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IMPORTANT: Additional parts may be required to reach photographic focus with certain telescope types:
SCTs and Maks generally have enough focus range without any additional optical or physical extensions.
Reflector type telescopes will typically require the use of a Barlow Lens (#BAR1).
Refractor type telescopes will typically require the use of an Extension Tube (#EXT126).

Alternative Solutions:
See our Deluxe Adapter Kit which is suitable for both “Prime Focus” and “Eyepiece Projection” imaging.

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Setup Diagram

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