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Select a product from the list below in order to see the detailed product review.

RITCHEY CHRETIEN

> RC-360AST

> RC-360SIT

> RC-400ASTL

> RC-400MA

> RC-400AST

> RC-400SI

> RC-250MA

> RC-250ASL

> RC-250AS

MAKSUTOV CASSEGRAIN

> MC-250QZ

DSC

> DSC-200/250

APOCHROMATIC REFRACTORS

> 806

> 1026

> 1056

> 1157

> 1306

> 1307

> 1528

Model: RC-360AST

Description :

14" f/8 LK-5 Astrosib optics

(interferometric test report on request)

carbon tubes truss design, all CNC aluminium and stainless

(focuser optional)

Model: RC-360SIT

Description :

14,5" f/7,9 Astrositall Star Instruments optics

(with interferometric test report)

carbon tubes truss design, all CNC aluminium and stainless

(focuser optional)

Model: RC-400ASTL

Description :

16" f/8 LK-5 Astrosib optics

(interferometric test report on request)

carbon tubes truss design, all CNC aluminium and stainless

(focuser optional)

Model: RC-400MA

Description :

16" f/8 Astrositall Marcon optics

(interferometric test report on request)

carbon tubes truss design, all CNC aluminium and stainless

(focuser optional)

Model: RC-400AST

Description :

16" f/8 Astrositall Astrosib optics

(interferometric test report on request)

carbon tubes truss design, all CNC aluminium and stainless

(focuser optional)

Model: RC-400SI

Description :

16" f/8,4 Astrositall Star Instruments optics

(with interferometric test report)

carbon tubes truss design, all CNC aluminium and stainless

(focuser optional)

Model: RC-250MA

Description :

10" f/8 Astrositall Marcon optics

(interferometric test report on request)

all CNC aluminium and stainless

(focuser optional)

Model: RC-250ASL

Description :

10" f/8 Astrositall LK-5 optics

(interferometric test report on request)

all CNC aluminium and stainless

(focuser optional)

Model: RC-250AS

Description :

10" f/8 Astrositall Astrosib optics

(interferometric test report on request)

all CNC aluminium and stainless

(focuser optional)

Model: MC-250QZ

Description :

10" f/12,5 Quartz Intes-Micro optics

(with interferometric test resport, better than 1/10 ptv)

all CNC aluminium, carbon fiber and stainless,

Feather Touch 2” focuser

Weights and dimensions :

outside carbon tube diameter: 304 mm

maxium diameter: 330 mm

total length (w/o focuser and dewcap): 783 mm

weight: 22 kg

Optional Accessories :

- aluminium case with wheels

- aluminium dewcap

Model: DSC-200/250

Description :

The pure Schmidt is considered one of the better instrument for astrophotography thanks to very high brightness and large, true pin point, correct field.

Many of the "old" plates obtained in the past with Schmidt telescopes still today as reference for resolution and field extension. This optic scheme is also very "simple": only one mirror and one corrector plate!

This you guarantee the maximum light transmission.

With this optics Astrotech introduce a modern tool for the imaging of the sky.

The high brightness joined to the sensitivity and dynamic of CCD can be now used to grab the sky trough very narrow band filters. To examine the hidden details of nebulas or to fight the most light polluted skies.

Each OTA is CNC machined to the highest tolerances and is computer optimizing for lightweight operation with structural rigidity. The primary mirror support system, corrector plate support system, spider, CCD support, front and rear rings and all small parts are fully CNC machined from aluminum, stainless steel or brass. The OTA is entirely realized in carbon fiber for the maximum lightness and to make absolutely stable the focus position thanks to the thermal expansion characteristics of this material.

The primary mirror support cell has absolutely no mirror-shift or mirrorflop. The fixed primary mirror also has axial and radial support. The primary mirror support and rear assembly are designed to provide excellent ventilation and removal of internal residual heat. Air circulation is

accomplished via three axial fans. Included is an external on/off and speed control for the fans. Three adjustable rear assembly openings provide thermal convention adjustments to the primary mirror. Three point collimation of the primary mirror, each can be locked into place once collimation is achieved.

The support of the CCD at camera focus is a true mechanics masterpiece.

The mechanics allow the micrometrical setting of centering and perpendicularity of the focus plane and, keeping the obstruction to the least possible, contains an innovative, motorized, high precision focusing system (based on Robofocus electronics). Standard 2" filters can be easily installed or removed in the front of CCD through two comfortable openings side by side, useful also for every kind of internal maintenance.

All parts are anodized or multi-coat painted.

The light path is fully baffled and coated with a very high quality opaque paint to provide the highest degree of protection from stray light.

At primary focus is present a CCD chosen for the little dimensions, the low heat production, the high sensitivity and the greater available ratio between the overall dimension and the extension of sensitive surface.

The CCD is the Starlight Xpress SXv-H9 (or H9C) model.

CCD main characteristics:

-Large, high resolution Exview CCD chip, with 1392x1040 6.45 micron square pixels in a 9x6.7 mm array

-Exceptionally high QE over an extremely wide spectral range from near UV to deep IR

-Exceptionally low dark signal - No dark frames necessary for most deep sky objects

-Exceptionally effective anti-blooming with minimal effect on linearity and no lost active area

-Built-in very high speed USB 2.0 interface (USB 1.1 compatible) for sub-4 second downloads

-Single USB cable control for all features - get rid of that dangerous cable tangle!

-Very low power consumption. Less than 1 amp at 12v DC

Weights and dimensions :

outside carbon tube diamter: 304 mm

maxium diameter: 330 mm

length: 1107 mm

weight: 25 kg

Technical Details :

- corrector plate clear aperture : 200 mm

- primary mirror diameter : 250 mm

- focal lenght: : 500 mm

- focal ratio: : f/2,5

- spatial resolution : 2,6 arcsec/px

- coverage : 1°x0,75°

Model: A & M 806

Description :

80 mm f/6 TMB triplet (with interferometric test report),

carbon tube/CNC aluminium,

four internal baffles

VARIANTS:

A&M 806F with 2” dual speed Feather Touch Focuser

A&M 806K with 2” Crayford focuser

Weights and dimensions:

A&M 806F: kg

A&M 806K: kg

outside tube diameter: 90 mm

outside dewcap diameter: 107 mm

Optional Accessories :

- CNC single ring

- HPRC resin case

- softcase

- 532 nm laser finder with bracket

- W30 bracket for 30 mm finder

Model: A & M 1026

Description :

102 mm f/6,6 Astreya triplet (with interferometric test report),

carbon tube/CNC aluminium,

3 internal baffles

Dual-speed William Optics 4” focuser

Focal Lenght: 670 mm

Aperture: 102 mm

Color Correction: APO

RMS (not worse): 0.03 lambda

Strehl Number (not worse): 0,96

Multicoating

Weights and dimensions:

A&M 1026: 5,3 kg

outside tube diameter: 113 mm

outside dewcap diameter: 140 mm

length dewcap close: 57 cm

Model: A & M 1056

Description :

105 mm f/6,2 TMB triplet (with interferometric test report),

carbon tube/CNC aluminium,

3 internal baffles

Dual-speed William Optics 4” focuser

Aperture: 105 mm

Focal length: 650 mm

F/ratio: f/6.2

Optical Design: triplet air-spaced Super ED Apo

Multicoating: Ja en

Coating: Multicoating

Strehl: above 95 %

Weights and dimensions:

weight: 5,5 kg

outside tube diameter: 113 mm

outside dewcap diameter: 140 mm

length dewcap close: 55 cm

length dewcap open: 70 cm

Optional Accessories :

- Water-jet tuberings

- aluminium case

- Field Flattner

Model: A & M 1157

A&M 1157F3 (version with 3.5” FT focuser)

A&M 1157F2 (version with 2” FT focuser)

Description :

115 mm f/7 (f.l. 805 mm) TMB triplet (with interferometric test report),

carbon tube/CNC aluminium,

3/4 internal baffles

VARIANTS:

A&M 1157F2 with 2” dual speed Feather Touch Focuser

A&M 1157F3 with giant 3.5” dual speed Feather Touch Focuser

A&M 1157M25 with giant 2.5” dual speed MoonLite focuser

A&M 1157W4 with giant 4” dual speed William Optics focuser

Weights and dimensions:

A&M 1157F2: 5,3 kg

A&M 1157F3: 7,2 kg

A&M 1157M25: 5,7 kg

A&M 1157W4: 6,5 kg

outside tube diameter: 123 mm

outside dewcap diameter: 150 mm

Optional Accessories :

- Water-jet tuberings

- aluminium case

- FFA (focuser flange adapter):

FFA2 for 2” Feather Touch Focuser

FFAM for 2.5” MoonLite Focuser

FFAW for 4” William Optics focuser

- Field Flattner

Model: A & M 1306

Description :

130 mm f/6 TMB triplet (with interferometric test report),

carbon tube/CNC aluminium,

3 internal baffles

VARIANTS:

A&M 1306F2 with 2” dual speed Feather Touch Focuser

A&M 1306F3 with giant 3.5” dual speed Feather Touch Focuser

A&M 1306M25 with giant 2.5” dual speed MoonLite focuser

A&M 1306W4 with giant 4” dual speed William Optics focuser

Weights and dimensions:

A&M 1306F2: 7,6 kg

A&M 1306F3: 9,5 kg

A&M 1306M25: 8,0 kg

A&M 1306W4: 8,8 kg

outside tube diameter: 134 mm

outside dewcap diameter: 175 mm

Optional Accessories :

- Water-jet tuberings

-DX CNC tuberings

- aluminium case

- FFA (focuser flange adapter):

FFA2 for 2” Feather Touch Focuser

FFAM for 2.5” MoonLite Focuser

FFAW for 4” William Optics focuser

- 78 mm giant Field Flattner

Model: A & M 1307

Description :

Lenses such as "SuperAPO", in comparison with usual apochtomats, have a W-shaped chromatic curve about much smaller scope, than at apochromats, as determines their advantage. The high degree of chromatic correction in SuperAPO is achieved by use 4-elements the optical circuit with application of special marks of glasses.

130 mm f/7 Astreya, super-apo four lenses

(with interferometric test report),

carbon tube/CNC aluminium,

five internal baffles

Optical design: 4 elements

Focal Lenght: 910 mm

Aperture: 130 mm

Chromatic Correction: SuperApo

RMS (not worse): 0,03 lambda

Strehl Number (not worse) - 0.96

Multicoating

VARIANTS:

A&M 1307F2 with 2” dual speed Feather Touch Focuser

A&M 1307F3 with giant 3.5” dual speed Feather Touch Focuser

A&M 1307M25 with giant 2.5” dual speed MoonLite focuser

A&M 1307W4 with giant 4” dual speed William Optics focuser

Weights and dimensions:

A&M 1307F2: 7,9 kg

A&M 1307F3: 9,8 kg

A&M 1307M25: 8,3 kg

A&M 1307W4: 9,1 kg

outside tube diameter: 134 mm

outside dewcap diameter: 175 mm

Optional Accessories :

- Water-jet tuberings

-DX CNC tuberings

- aluminium case

- FFA (focuser flange adapter):

FFA2 for 2” Feather Touch Focuser

FFAM for 2.5” MoonLite Focuser

FFAW for 4” William Optics focuser

Model: A & M 1528