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Reducer 0.7x EdgeHD 800
Design: four-lens reducer that retains the flat field of view of the Edge HD telescopes
105mm backfocus at f/7 (133.35mm at f/10) allows for a variety of accessories and cameras. The optional EdgeHD T adapter is in two parts and accepts DSLR cameras with T2 bayonet rings which have a flange focal distance of 55mm. This adapter therefore serves both distances.
A full f-stop faster than f/10: Reduces the exposure time by half with the same image brightness.
Enlarges the image field by 43%: Ideally suited for large field images, e.g. of large-scale galaxies and nebulae.
Glass
Lanthanumglass elements:
In the EdgeHD reducers, lenses made of lanthanum enable clear, high-contrast images with minimal chromatic aberration
Fully multi-coated lenses: All glass air surfaces are multi-coated for maximum light transmission and color fidelity
Blackened lens edges: All lenses have blackened edges to eliminate internal reflections and increase contrast
Optimized for APS-C format sensors: Fits most DSLR cameras as well as Nightscape CCD cameras
Mechanics
Aluminum housing:
CNC-machined aluminum housing for precise lens spacing and alignment.
Metal screw cap for both ends of the reducer: Protects the optics from dust and scratches.
Features:
The EdgeHD 0.7x reducer makes e.g. Your EdgeHD 1100 Schmidt-Cassergrain by a full aperture faster than f/10, halving the exposure time required to achieve the same image brightness
Optics with four lens elements
Provides a comparable flat image to the original EdgeHD optics
Enlarges the field of view by 43%
105mm backfocus, which means enough room for modern optical accessories and a variety of cameras
Allows the use of existing EdgeHD T-adapters with or without EdgeHD reducer
Reducer 0.7x EdgeHD 800
Design: four-lens reducer that retains the flat field of view of the Edge HD telescopes
105mm backfocus at f/7 (133.35mm at f/10) allows for a variety of accessories and cameras. The optional EdgeHD T adapter is in two parts and accepts DSLR cameras with T2 bayonet rings which have a flange focal distance of 55mm. This adapter therefore serves both distances.
A full f-stop faster than f/10: Reduces the exposure time by half with the same image brightness.
Enlarges the image field by 43%: Ideally suited for large field images, e.g. of large-scale galaxies and nebulae.
Glass
Lanthanumglass elements:
In the EdgeHD reducers, lenses made of lanthanum enable clear, high-contrast images with minimal chromatic aberration
Fully multi-coated lenses: All glass air surfaces are multi-coated for maximum light transmission and color fidelity
Blackened lens edges: All lenses have blackened edges to eliminate internal reflections and increase contrast
Optimized for APS-C format sensors: Fits most DSLR cameras as well as Nightscape CCD cameras
Mechanics
Aluminum housing:
CNC-machined aluminum housing for precise lens spacing and alignment.
Metal screw cap for both ends of the reducer: Protects the optics from dust and scratches.
Features:
The EdgeHD 0.7x reducer makes e.g. Your EdgeHD 1100 Schmidt-Cassergrain by a full aperture faster than f/10, halving the exposure time required to achieve the same image brightness
Optics with four lens elements
Provides a comparable flat image to the original EdgeHD optics
Enlarges the field of view by 43%
105mm backfocus, which means enough room for modern optical accessories and a variety of cameras
Allows the use of existing EdgeHD T-adapters with or without EdgeHD reducer
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