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0 mm (1)
0.5 mm (1)
1.5 mm (1)
3 mm (1)
5 mm (1)
10 mm (1)
15 mm (1)
20 mm (5)
30 mm (1)
32 mm (1)
Optical thickness 7.3 mm (1)
Optical thickness: 0 mm (19)
Optical thickness: 0.1 mm (1)
Optical thickness: 0.15 mm (1)
Optical thickness: 0.15 - 1 mm (1)
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Optical thickness: 0.3 - 1.0 mm (4)
Optical thickness: 0.4 mm (1)
Optical thickness: 0.5 mm (4)
Optical thickness: 0.5 - 13.5 mm (1)
Optical thickness: 0.6 mm (1)
Optical thickness: 0.7 mm (1)
Optical thickness: 0.8 mm (3)
Optical thickness: 1 mm (15)
Optical thickness: 1.4 mm (1)
Optical thickness: 1.5 mm (4)
Optical thickness: 2 mm (20)
Optical thickness: 2.1 mm, 6.2 mm (1)
Optical thickness: 2.5 mm (5)
Optical thickness: 3 mm (13)
Optical thickness: 3.5 mm (3)
Optical thickness: 4 mm (11)
Optical thickness: 5 mm (26)
Optical thickness: 5.5 mm (3)
Optical thickness: 6 mm (4)
Optical thickness: 7 mm (10)
Optical thickness: 7.5 mm (2)
Optical thickness: 8 mm (9)
Optical thickness: 8.3 mm (8)
Optical thickness: 9 mm (9)
Optical thickness: 9.5 mm (2)
Optical thickness: 9.50 - 10.25 mm (3)
Optical thickness: 10 mm (14)
Optical thickness: 10.5 mm (1)
Optical thickness: 10.6 mm (1)
Optical thickness: 10.8 mm (1)
Optical thickness: 11 mm (8)
Optical thickness: 11.4 mm (1)
Optical thickness: 11.5 mm (3)
Optical thickness: 12 mm (3)
Optical thickness: 12 - 16 mm (1)
Optical thickness: 12 - 17.4 mm (1)
Optical thickness: 12.5 mm (6)
Optical thickness: 12.7 mm (2)
Optical thickness: 13 mm (4)
Optical thickness: 13 - 31 mm (1)
Optical thickness: 13.5 mm (1)
Optical thickness: 14 mm (4)
Optical thickness: 14 mm, 20 mm (1)
Optical thickness: 15 mm (7)
Optical thickness: 15 - 18 mm (4)
Optical thickness: 15 - 20 mm (2)
Optical thickness: 16.2 mm (1)
Optical thickness: 16.5 mm (2)
Optical thickness: 17 - 23 mm (1)
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Optical thickness: 19 mm (1)
Optical thickness: 20 mm (4)
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Optical thickness: 21 mm (3)
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Optical thickness: 28 mm (2)
Optical thickness: 29 mm (2)
Optical thickness: 29 - 35.5 mm (2)
Optical thickness: 29 - 46 mm (1)
Optical thickness: 30 mm (8)
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Optical thickness: 34.5 mm (1)
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Optical thickness: 38.5 mm (3)
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Optical thickness: 40 mm (4)
Optical thickness: 47 mm (4)
Optical thickness: 50 mm (2)
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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Alt-Azimuth (21)
Alt/Az (4)
Center-Balanced Equatorial Mount (1)
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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Resolution

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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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