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APM M63 Riccardi APO Reducer – Small

|, APM, Telescope Accessories, Reducers|APM M63 Riccardi APO Reducer – Small

APM M63 Riccardi APO Reducer – Small

$684

Out of stock

APM M63 Riccardi APO Reducer – Small for APO telescopes shortens the focal length by a quarter and corrects the image circle – thereby converting telescopes into fast astrographs!

Out of stock

SKU: APM-RIRED-M63-small Categories: , , ,

Description

APM M63 Riccardi APO Reducer – Small

APM M63 Riccardi APO Reducer – Small for APO telescopes was calculated from master optical designer Massimo Riccardi.  This 3 element 0.75 x Apo-Reducer/Flattener Corrector is suitable for all TMB-APM-LZOS Apochromatic Telescopes. Tests show that it also works on Apos from other manufacturers as well. The reducer shortens the focal length by a quarter and corrects the image circle – thereby converting your telescope into a fast astrograph!

The connection to your telescope and camera occurs over an M63 x 1 thread. For the correct adjustment of the reducer/flatener we can offer you an adjustment flange.

Usually the reducer is screwed onto the focuser. The reducer can also be installed inside the focuser barrel, if the free aperture is equal to or larger than 68mm.  Please reference the Backfocus Data Chart to locate the correct backfocus for a particular telescope model.  The total optical path of reducer plus backfocus plus focus change is between about 160mm and 180mm.

Correction is made for chips up to the full-format and perfect for the best known Kodak KAF 8300 chip.  Please reference Riccardi Adapter Data to locate the correct adapter for a particular camera/telescope combination.

Additional information

Weight1.9 lbs

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Package Includes:

  • Reducer
  • Two Dust Caps

Product Specifications:

Connection to camera: M63 x 1 ID-Thread
Connection to telescope: M63 x 1 OD-Thread
Coating: Fully multicoated
Housing material: Aluminium
Recommended distance from focal plane to connecting thread: See PDF
Focal length reduction: 0.75 x
Lenses: 3 Lenses
Optical length without collimation flange: 180.05mm
Optical length with collimation flange: 189.05mm
Fully corrected field: 40mm
Length: 71.7mm (with Dustcaps 75mm)
Diameter: 67mm
Weight: 17.5 oz (with Dustcaps 18.9 oz)

APO Spot Diagrams

APO Doublet Spot Diagram

APO Doublet Spot Diagram

APO LZOS Spot Diagram

APO LZOS Spot Diagram

Riccardi Backfocus Data

Riccardi Adapter Data