Field Flatteners and Coma Correctors

9 Matching Products

Celestron Reducer / Corrector f/6.3

Find out more about the Celestron Reducer / Corrector f/6.3

This combination focal reducer and field corrector lens makes it possible to have a dual focal ratio instrument, without sacrificing image quality.If offers wide fields of view with any Schmidt-Cassegrain telescope and when used for astrophotography, it reduces exposure time by a factor of 3.

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£149.00

1x Celestron Reducer / Corrector f/6.3

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Celestron Reducer / Corrector f/6.3

Optical Vision Field Flattener

Find out more about the Optical Vision Field Flattener

The Sky-Watcher Field Flattener is a superb quality, non-focal reducing field flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5.5 to f6.0. Will also provide much improved results on refractors with focal lengths narrowly outside this optimised f/range. Integral T-Ring adaptor thread. High quality CNC machined body with gloss black anodised finish.

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£95.00

1x Optical Vision Field Flattener

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Optical Vision Field Flattener

Sky-Watcher Coma Corrector for Newtonian Reflectors

Find out more about the Sky-Watcher Coma Corrector for Newtonian Reflectors

This Sky-Watcher Coma Corrector is optimised for all Sky-Watcher fast-ratio f/5 Newtonian Reflectors / Dobsonians, with 2” focuser. Delivers stunning wide-field views with pinpoint stars to the edge of the field. Magnification remains unaltered. Supplied complete with necessary adaptors for visual use. For imaging use with a DSLR camera, a suitable M48x0.75 adaptor is required to match your ...

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£169.00

1x Sky-Watcher Coma Corrector for Newtonian Reflectors

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Sky-Watcher Coma Corrector for Newtonian Reflectors

Sky-Watcher 0.85x Focal Reducer/Corretor for Evostar-80ED DS-PRO

Find out more about the Sky-Watcher 0.85x Focal Reducer/Corretor for Evostar-80ED DS-PRO

Designed for serious Astro-Imagersand optimised for the Evostar-80ED PRO, the Sky-Watcher 0.85x Focal Reducer/Corrector effectively reduces the telescope's focal length by a factor of 0.85x and provides much improved field-edge correction. Use in conjunction with Sky-watcher's M48 Canon or Nikon T-ring adaptors (product codes 20237 & 20238).

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£219.00

1x Sky-Watcher 0.85x Focal Reducer/Corretor for Evostar-80ED DS-PRO

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Sky-Watcher 0.85x Focal Reducer/Corretor for Evostar-80ED DS-PRO

Sky-Watcher 0.85x Focal Reducer/Corrector for Evostar-120ED DS-PRO

Find out more about the Sky-Watcher 0.85x Focal Reducer/Corrector for Evostar-120ED DS-PRO

Designed for serious Astro-Imagers and optimised for the Evostar-120ED PRO, the Sky-Watcher 0.85x Focal Reducer/Corrector effectively reduces the telescope's focal length by a factor of 0.85x and provides much improved field-edge correction. Use in conjunction with Sky-watcher's M48 Canon or Nikon T-ring adaptors (product codes 20237 & 20238).

Special OrderFree delivery available
£219.00

1x Sky-Watcher 0.85x Focal Reducer/Corrector for Evostar-120ED DS-PRO

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Sky-Watcher 0.85x Focal Reducer/Corrector for Evostar-120ED DS-PRO

Sky-Watcher f/4 Aplanatic Super Coma Corrector

Find out more about the Sky-Watcher f/4 Aplanatic Super Coma Corrector

Optimised for Sky-Watcher superfast f/4 Quattro imaging Newtonians, delivering stunning wide-field views with pinpoint stars to the edge of the flat field, leaving the magnification unaltered.

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£220.45RRP £239.00

1x Sky-Watcher f/4 Aplanatic Super Coma Corrector

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Sky-Watcher f/4 Aplanatic Super Coma Corrector

Sky-Watcher M48 Field Flattener for Esprit 150

Find out more about the Sky-Watcher M48 Field Flattener for Esprit 150

Sky-Watcher M48 field flattener designed to optically match Esprit-150ED Triplet Refractor Telescope.Threaded especially for the Esprit-150ED with a M48 camera thread, with 2 multi-coated lenses housed in an aluminium body.

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£299.00

1x Sky-Watcher M48 Field Flattener for Esprit 150

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Sky-Watcher M48 Field Flattener for Esprit 150

Sky-Watcher 0.77 Reducer / Flattener for Esprit-120ED

Find out more about the Sky-Watcher 0.77 Reducer / Flattener for Esprit-120ED

http://www.opticalvision.co.uk/astronomical_accessories-camera_adaptors_and_imaging_products/077x-reducerflattener-for-esprit-120ed-triplet.html

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£329.00

1x Sky-Watcher 0.77 Reducer / Flattener for Esprit-120ED

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Sky-Watcher 0.77 Reducer / Flattener for Esprit-120ED

Sky-Watcher 0.77 Reducer / Flattener for Esprit-150ED

Find out more about the Sky-Watcher 0.77 Reducer / Flattener for Esprit-150ED

http://www.opticalvision.co.uk/astronomical_accessories-camera_adaptors_and_imaging_products/077x-reducerflattener-for-esprit-150ed-triplet.html

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£329.00

1x Sky-Watcher 0.77 Reducer / Flattener for Esprit-150ED

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Sky-Watcher 0.77 Reducer / Flattener for Esprit-150ED