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0 mm (1)
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1.5 mm (1)
3 mm (1)
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10 mm (1)
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Optical thickness: 2.1 mm, 6.2 mm (1)
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Optical thickness: 12 mm (3)
Optical thickness: 12 - 16 mm (1)
Optical thickness: 12 - 17.4 mm (1)
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Optical thickness: 109 mm (1.25" barrel) (1)
Optical thickness: 112 mm (1)
Optical thickness: 121 mm (2" barrel) (1)
Optical thickness: 131 mm (1.25" barrel) (1)
Optical thickness: -65.5 mm (1)

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Computerized Altitude-Azimuth Dual Fork Arm (1)
Dobsonian (17)
Equatorial (29)
Equatorial / Alt-Az (1)
Equatorial / Alt-Azimuth (9)
Pantograph (1)

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Encoders

Encoders: Absolute on both axes (13)
Encoders: Incremental on RA axis (1)
Encoders: None (39)
High-resolution absolute encoders (10)

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Counterweight shaft

16 mm (4)
18 mm (6)
19 mm (2)
20 mm (12)
25 mm (11)
28 mm (7)
30 mm (7)
31.5 mm (6)
32 mm (8)
38.1 mm (2)
40 mm (4)
50 mm (3)
60 mm (3)

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Bit depth

10-bit / 12-bit (2)
12-bit (40)
12-bit / 16-bit (1)
12-bit / 8-bit depending on model (28)
12-bit per ADC; 16-bit HDR (1)
14-bit (19)
16-bit (50)
16-bit (12/16-bit ADC selectable) (1)
8, 10, 12, and 16 bits selectable (1)
8-bit / 12-bit switchable (1)

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Pixel size

1.45 µm (2)
2.0 µm (6)
2.4 µm (1)
2.74 µm (1)
2.81 µm (1)
2.9 µm (13)
3.45 µm (31)
3.75 µm (2)
3.76 µm (57)
4.0 µm (2)
4 µm (1)
4.4 µm (1)
4.5 µm (2)
4.63 µm (3)
5 µm (4)
5.86 µm (2)
5.94 µm (1)
6.5 µm (1)
9 µm (2)
9.76 µm (1)
3.76 μm (2)
2.3 / 4.63 µm (3)
3.45 μm × 3.45 μm (1)
5.86 µm × 5.86 µm (2)
6.5 µm × 6.5 µm (1)
9 μm × 9 μm (1)
9µm × 9µm (1)

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Quantum efficiency

75% (2)
77% (2)
79% (1)
80% (23)
81% (6)
83% (6)
84% (1)
87% (1)
89% (1)
90% (6)
91% (18)
92% (3)
89% @ 610 nm (1)
>77% @ 1200 nm (3)
>80% @ 1200 nm (3)
FSI: ~62% / BSI: ~95% (1)
FSI: ~74% / BSI: ~95% (1)
MONO: >70% / UV: optimized for 200–400 nm / EUV: up to 170 nm (1)
~60% (1)
~61% (14)
~62% (1)
~64% (2)
~65% (5)
~66% (9)
~77% (1)
~80% (12)
~84% (1)
~90% (5)
~91% (12)
~95% (1)

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Sensor diagonal

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FPS

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Filter size

1.25" (70)
2" (74)
31 mm (31)
36 mm (37)
46 mm (2)
47.4 mm (4)
50 mm x 50 mm square (25)
65 mm x 65 mm square (14)
50 mm round (33)
EOS C (3)
EOS Full Frame (3)
EOS R (1)
Nikon Full Frame (2)
Sony Full Frame (1)

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Bandpass (FWHM)

0.2 - 0.8 Å depending on configuration (1)
2.5 nm (4)
3 nm (15)
3.5 nm (4)
4 nm (6)
4.5 nm (4)
5 nm (2)
5.5 nm (1)
6.5 nm (3)
7 nm (6)
7.5 nm (1)
9 nm (1)
11 nm (1)
20 nm (3)
25 nm (1)
60 nm (1)
3.5 - 4 nm / 6.5 nm (3)
~0.5Å (3)

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Apparent FOV

40 - 60° (1)
44° (1)
48° (7)
48 - 68° (1)
50° (8)
52° (3)
56° (3)
58° (3)
60° (10)
65° (3)
68° (9)
70° (2)
72° (2)
76° (6)
82° (11)
100° (2)
110° (4)

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Barrel size

1.25" (79)
2" (47)

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Colour or Monochrome

Colour (62)
Monochromatic (2)
Monochrome (80)
Monochrome (Polarized, 4-direction filter) (2)

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Cooled

Active cooling (36)
Cooled (62)
Fan-cooled (8)
No (8)
Non-cooled (28)
None (QHY174 GPS models are not cooled) (2)
Passive cooling (aluminium housing, no TEC) (1)
TEC cooled (ΔT of 35°C) (1)

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BAADER ADAPTER 3.3" CELESTRON NUT
Very low stock (1 unit)

Regular price $129.00AUD
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BAADER ADAPTER 3.3" SC FEMALE - M68 FEMALE
In stock

Regular price $229.00AUD
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BAADER ADAPTER 60.2mm - 2" FOR PENTAX REFRACTORS
Backordered

Regular price $65.00AUD
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BAADER ADAPTER FOR STEELTRACK RT & SKYWATCHER 80ED / 100ED
Very low stock (1 unit)

Regular price $75.00AUD
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BAADER ADAPTER M42 FEMALE TO 2" SC MALE 1mm
In stock

Regular price $45.00AUD
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BAADER ADAPTER M42 MALE - M42 MALE WITH 1.25" FILTER THREAD
In stock

Regular price $59.00AUD
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BAADER ADAPTER M48 FEMALE - M42 MALE
In stock

Regular price $55.00AUD
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BAADER ADAPTER M48 MALE - M42 FEMALE

(1)

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Regular price $45.00AUD
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BAADER ADAPTER M48 MALE - M42 MALE
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Regular price $55.00AUD
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BAADER ADAPTER M48 MALE TO M42 FEMALE 2.5mm
In stock

Regular price $39.00AUD
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BAADER ADAPTER M54 FEMALE - M42 MALE
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BAADER ADAPTER M54 FEMALE - M48 MALE
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BAADER ADAPTER M54 FEMALE - S52 MALE

Regular price $65.00AUD
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BAADER ADAPTER M54 MALE - M48 FEMALE
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BAADER ADAPTER M68 FEMALE - M63 MALE
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Regular price $99.00AUD
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BAADER ADAPTER M68 FEMALE - M74 FEMALE
In stock

Regular price $79.00AUD
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BAADER ADAPTER M68 MALE - 2" SC FEMALE
Very low stock (1 unit)

Regular price $89.00AUD
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BAADER ADAPTER M68 MALE - M48 MALE
In stock

Regular price $89.00AUD
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BAADER ADAPTER M68 MALE - M54 MALE
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Regular price $89.00AUD
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BAADER ADAPTER M68 MALE - M62 MALE
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Regular price $99.00AUD
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BAADER ADAPTER M68 MALE - T2 (M42) MALE
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BAADER ADAPTER M88 x 1 FOR STEELTRACK RT & VIXEN REFRACTORS

Regular price $169.00AUD
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BAADER ADAPTER M90 x 1 FOR STEELTRACK RT & GSO
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Regular price $69.00AUD
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BAADER ADAPTER M93 x 1 FOR STEELTRACK RT

Regular price $209.00AUD
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BAADER ADAPTER S52 - M68 MALE FOR BAADER WIDE T-RINGS
In stock

Regular price $79.00AUD
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BAADER ADAPTER SC 3.3" FEMALE - M68 MALE
In stock

Regular price $229.00AUD
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BAADER ADAPTER SCT 2" MALE TO M48 FEMALE
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Regular price $49.00AUD
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BAADER ADVANCED SLIT-DOME 3.2m
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BAADER ADVANCED SLIT-DOME 4.2m
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BAADER ADVANCED SLIT-DOME 5.3m
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BAADER ADVANCED SLIT-DOME 6.15m
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BAADER ADVANCED SLIT-DOME 8.5m
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BAADER ALLSKY CLAMSHELL DOME 2.3m
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BAADER ALLSKY CLAMSHELL DOME 4.5m
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BAADER ALLSKY CLAMSHELL DOME 6.5m
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BAADER ASTROSOLAR PHOTO FILM OD 3.8

(1)

In stock

Regular price $59.00AUD
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BAADER ASTROSOLAR SAFETY FILM OD 5.0

(4)

In stock

Regular price From $29.00AUD
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BAADER AUTOMATIC SLIT-DOME 2.1m
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BAADER AUTOMATIC SLIT-DOME 2.6m
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BAADER BESSEL B PHOTOMETRIC FILTER
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BAADER BESSEL I PHOTOMETRIC FILTER
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Regular price From $279.00AUD
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