Astronomy Specialist

APM RICCARDI 0.75x REDUCER M63 FOR ESPRIT & GSO RC

$799.00
SKU: APM-RIRED-M63-small

APM


 

The APM Riccardi 0.75x Reducer M63 is a high quality triplet ED reducer/flattener for apochromatic refractors. It is compatible with the Sky-Watcher Esprit 100, 120 and 150, along with many other apo refractors which have an M63 x 1 thread. It is also compatible with GSO Ritchey-Chretien telescopes from 10" and larger.

Designed by legendary optical designer Massimo Riccardi, this reducer provides a large corrected field and transforms your telescope into a true astrograph. By contrast, the Sky-Watcher reducers only cover a 34mm field, making them unsuitable for use with full-frame sensors.

The APM Riccardi Reducer features multi-coatings optimized for the spectral range of modern sensors. An optional tilter is available for precise adjustment of the field to optimize star shapes in the corners of the frame.

Note: For use with the Esprit 100, 120 or 150, the optional M74 to M63 adapter is required. For easy connection to common camera setups, an optional M63 to M48 adapter is also available.


Specifications

 

Telescope side connection
M63 x 1 male
Camera side connection
M63 x 1 female
External diameter reducer 67mm
Depth female thread 3.6mm
Height male thread 4.6mm
Telescope side free aperture 55mm
Backfocus distance Varies (see "Backfocus" tab)
Coating
Multi-coating
Reduction factor
0.75x
Corrected field
40 mm for refractors, up to APS-C for RC
SKU APM-RIRED-M63-small
Backfocus

 

Sky-Watcher Esprit 100 80 mm from end of M63 threads
Sky-Watcher Esprit 120 77.1 mm (approximately) from end of M63 threads
Sky-Watcher Esprit 150 74 mm from end of M63 threads
GSO RC 10" 70.55 mm from end of M63 threads

 

See this PDF for more telescope configurations.

APM RICCARDI 0.75x REDUCER M63 FOR ESPRIT & GSO RC.

APM RICCARDI 0.75x REDUCER M63 FOR ESPRIT & GSO RC

$799.00

Optical design

Image circle

Focal ratio

Aperture

Focal length

Optical thickness

Threads

M63 x 1 Male, M63 x 1 Female

Cooled

Colour or Mono

Pixel size

Sensor dimensions

Resolution

Sensor diagonal

Quantum efficiency

Read noise

Fullwell capacity

Bit depth

FPS

Camera backfocus

Filter size

Filter size

Bandpass (FWHM)

Bandpass (FWHM)

Glass thickness

Mount type

Payload capacity

Latitude range

Dovetail saddle

Slew speed

Encoders

Periodic error correction

Counterweight shaft

Azimuth adjustment range

Internal diameter

Illuminated diameter

Compatible telescope external diameter

Weight

Length

Width

Height

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