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Product no.: 92734

Reducer 0.75x 91F

$ 316.00 incl. VAT plus shipping costs
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short-term
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  • Optimised for Askar 91F: Shortens the focal length to f/5
  • Camera connection: M48x0.75
  • Telescope connection: M59x1
  • Working distance: 55 millimetres from M48 thread
  • M48 filter thread

Product description

The reducer shortens the focal length of the telescope and is therefore also called a focal reducer. This makes the optics "faster" for photography and the image brighter. It also increases the field of view.

Since a stronger signal is captured in the same exposure time with a reducer, you can expect a higher signal-to-noise ratio and thus better detail in your images.

Specifications

Capacity


Appropriate for telescopes
Askar 91F (Refractor)
Connector (at camera end)
M48
Focal length reduction
0,75
Backfocus (mm)
55
Number of lenses
3
Coating of optical system
FMC
Filter thread
yes

General


Type
Flatteners, Correctors, Reducers
Type of build
Reducer
Weight (g)
300
Outer material
Aluminium

Product safety

Manufacturer: SHARPSTAR OPTICS CO.,LTD, 3/F, No.5 building , Science and Technology Center, No.79 Jin-Sui Road,, 314001 Zhe-Jiang, CN, http://www.sharpstar-optics.com
Responsible person: NIMAX GmbH, Otto-Lilienthal-Str. 9, 86899 Landsberg am Lech, DE, [email protected]
Askar Reducer 0.75x 91F
Example of use
Askar Reducer 0.75x 91F
Installation
Askar Reducer 0.75x 91F
Spot Diagram

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