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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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Pantograph (1)

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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)
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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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SKYWATCHER EQUATORIAL WEDGE FOR FUSION 120I
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SKYWATCHER ESPRIT 100EDX APO TRIPLET
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SKYWATCHER EVOGUIDE 50ED V2

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SKYWATCHER EVOSTAR 80 ED & ESATTO 2"
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SKYWATCHER F/4 APLANATIC COMA CORRECTOR

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SKYWATCHER FLATTENER & REDUCER FOR 100ED
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SKYWATCHER FLATTENER & REDUCER FOR 120ED
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SKYWATCHER FUSION 120i MAKSUTOV CASSEGRAIN 150
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SKYWATCHER HEQ5-R PRO DUAL SADDLE MOUNT

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SKYWATCHER HERITAGE 130mm (5") TABLETOP DOBSONIAN

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SKYWATCHER NEQ6 COUNTERWEIGHT

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SKYWATCHER NOMAD 2x FOCAL EXTENDER
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SKYWATCHER QUATTRO 200 f/4

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