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(360 products)

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Availability

In stock (224)
Out of stock (174)

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Brand

10Micron (2)
Antlia (31)
Askar (57)
Baader Planetarium (2)
Celestron (6)
Daystar (16)
DwarfLab (1)
iOptron (1)
Optolong (18)
QHYCCD (1)
Sharpstar (5)
Sky-Watcher (5)
ToupTek (26)
Touptek (3)
WarpAstron (3)
William Optics (47)
ZWO (133)

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Optical thickness

5 mm (1)
7.5 mm (1)
10 mm (1)
20 mm (5)
Optical thickness: 0 mm (3)
Optical thickness: 1 mm (1)
Optical thickness: 2 mm (3)
Optical thickness: 8.3 mm (2)
Optical thickness: 10 mm (1)
Optical thickness: 10.6 mm (1)
Optical thickness: 10.8 mm (1)
Optical thickness: 11 mm (2)
Optical thickness: 11.5 mm (2)
Optical thickness: 14 mm (1)
Optical thickness: 15 mm (2)
Optical thickness: 16.5 mm (2)
Optical thickness: 17.5 mm (1)
Optical thickness: 21 mm (3)
Optical thickness: 22.5 mm (1)
Optical thickness: 26.5 mm (1)
Optical thickness: 29 mm (2)
Optical thickness: 31 mm (1)
Optical thickness: 34.5 mm (1)
Optical thickness: 37 mm (2)
Optical thickness: 38.5 mm (1)
Optical thickness: 41.5 mm (1)
Optical thickness: 48.5 mm (1)

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Aperture

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Optical design

Achromatic Doublet (1)
Apochromatic doublet (8)
Apochromatic Petzval (3)
Apochromatic Petzval quadruplet (9)
Apochromatic Petzval quintuplet (8)
Apochromatic Petzval sextuplet (1)
Apochromatic Quintuplet (6)
Apochromatic septuplet (3)
Apochromatic sextuplet (2)
Apochromatic triplet (11)
Apochromatic Triplet (2)
Corrected Cassegrain astrograph (2)
Doublet (4)
Dual telephoto & wide-angle lenses (1)
H-alpha apochromatic doublet (3)
Newtonian (2)
Schmidt-Cassegrain (2)

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Focal length

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Focal ratio

f/3.5 (1)
f/3.75 (1)
f/3.8 (2)
f/4 (2)
f/4.5 (3)
f/4.6 (1)
f/4.8 (10)
f/4.9 (3)
f/5 (4)
f/5.5 (1)
f/5.6 (4)
f/5.9 (5)
f/6.4 (3)
f/6.5 (2)
f/6.7 (1)
f/6.8 (1)
f/6.9 (3)
f/7 (7)
f/7.5 (5)
f/7.7 (1)
f/7.8 (1)
f/10 (2)
f/15.5 (2)
f/17.5 (1)

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Mount type

Alt-Azimuth (1)
Computerized Altitude-Azimuth Dual Fork Arm (1)
Dobsonian (2)
Equatorial (5)
Equatorial / Alt-Az (1)
Equatorial / Alt-Azimuth (3)

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Payload capacity

80 kg (1)
13 kg with counterweight (1)
20 kg with counterweight (1)
30 kg with counterweight (1)
8 kg without counterweight (1)
15 kg without counterweight (2)
20 kg without counterweight (2)
22 kg without counterweight (2)
30 kg without counterweight (2)
Payload: 18 kg (1)
Payload: 25 kg (1)
Payload: 34 kg (1)
≤2.5 Nm (5kg) (1)

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Encoders

Encoders: None (9)

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Counterweight shaft

19 mm (2)
20 mm (3)
25 mm (1)
32 mm (1)

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Bit depth

12-bit (33)
14-bit (12)
16-bit (19)

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Pixel size

1.45 µm (2)
2.0 µm (6)
2.4 µm (1)
2.9 µm (13)
3.45 µm (1)
3.75 µm (2)
3.76 µm (24)
4.0 µm (2)
4 µm (1)
4.4 µm (1)
4.63 µm (3)
5 µm (2)
5.86 µm (2)
9 µm (1)
2.3 / 4.63 µm (3)

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Resolution

656 x 520 (2)
1280 x 960 (2)
1280 x 1024 (1)
1608 x 1104 (1)
1920 x 1080 (9)
1936 x 1216 (2)
2704 x 1536 (1)
3008 x 3008 (5)
3552 x 3552 (2)
3840 x 2160 (11)
3864 x 2192 (1)
4128 x 2808 (2)
4144 x 2822 (4)
5496 x 3672 (1)
6224 x 4168 (3)
6248 x 4176 (8)
6280 x 4210 (1)
8192 x 5460 (1)
8288 x 5644 (3)
9568 x 6380 (3)
9576 x 6388 (3)
11656 x 8750 (1)

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Quantum efficiency

75% (2)
77% (2)
79% (1)
80% (17)
81% (6)
83% (6)
84% (1)
89% (1)
90% (5)
91% (17)
92% (3)
>80% @ 1200 nm (3)

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Sensor diagonal

4.12 mm (1)
6 mm (1)
6.14 mm (1)
6.39 mm (4)
6.45 mm (4)
8.2 mm (1)
8.47 mm (2)
8.81 mm (3)
8.86 mm (2)
9.02 mm (1)
10.04 mm (2)
12.8 mm (1)
12.84 mm (5)
13.2 mm (2)
15.9 mm (1)
15.97 mm (2)
16 mm (3)
17.6 mm (1)
23.1 mm (5)
23.2 mm (1)
28.3 mm (11)
28.43 mm (1)
43.2 mm (3)
43.3 mm (4)
55 mm (1)

Clear

FPS

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Filter size

1.25" (36)
2" (39)
31 mm (12)
36 mm (19)
47.4 mm (2)
50 mm x 50 mm square (7)
65 mm x 65 mm square (2)
50 mm round (14)
EOS C (3)
EOS Full Frame (3)
EOS R (1)
Nikon Full Frame (2)
Sony Full Frame (1)

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Bandpass (FWHM)

2.5 nm (4)
3 nm (11)
3.5 nm (2)
4 nm (1)
4.5 nm (4)
5 nm (1)
6.5 nm (3)
7 nm (5)
11 nm (1)
20 nm (2)
25 nm (1)
~0.5Å (3)

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Apparent FOV

60° (1)

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Colour or Monochrome

Colour (31)
Monochromatic (2)
Monochrome (32)

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Cooled

Cooled (37)
Non-cooled (27)
TEC cooled (ΔT of 35°C) (1)

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20% off

ZWO M54 TO M48 21mm EXTENDER
Very low stock (1 unit)

Sale price $39.00AUD Regular price $49.00
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Up to 21% off

ZWO ASIAIR PRO SHUTTER RELEASE CABLE

(1)

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17% off

ZWO NIKON LENS ADAPTER FOR EFW 2"
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8% off

MULTI-CONNECTION PLATE 150 FOR ASKAR FRA500/600

(1)

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ZWO NIKON T2 TO M42 ADAPTER
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11% off

ZWO CANON LENS ADAPTER FOR EFW 2"

Sale price $79.00AUD Regular price $89.00
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ZWO VIXEN DOVETAIL SADDLE FOR ASIAIR PLUS

(1)

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26% off

ZWO REPLACEMENT FAN FOR COOLED/PRO CAMERAS

(1)

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ZWO DC Y-SPLITTER CABLE FOR ASIAIR

(3)

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14% off

ZWO T2 1.25" FILTER ADAPTER
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ZWO 1.25" ATMOSPHERIC DISPERSION CORRECTOR

(2)

Very low stock (1 unit)

Sale price $189.00AUD Regular price $199.00
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ZWO FILTER DRAWER FOR CANON LENS

Sale price $149.00AUD Regular price $175.00
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ANTLIA OIII 3nm PRO ULTRA NARROWBAND FILTER
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Sale price From $419.00AUD Regular price $459.00
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ANTLIA SII 3nm PRO ULTRA NARROWBAND FILTER
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ANTLIA Ha 3nm PRO ULTRA NARROWBAND FILTER

(2)

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ANTLIA 3nm PRO ULTRA NARROWBAND SET Ha + OIII + SII

(5)

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Sale price From $1,249.00AUD Regular price $1,349.00
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DAYSTAR QUARK H-ALPHA FILTER

(1)

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7% off

DAYSTAR QUARK GEMINI H-ALPHA DUAL FILTER
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DAYSTAR COMBO QUARK H-ALPHA FILTER
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DAYSTAR QUARK MAGNESIUM I b2 FILTER
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DAYSTAR QUARK SODIUM D FILTER
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Sale price $2,149.00AUD Regular price $2,349.00
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8% off

DAYSTAR SOLAR SCOUT 60MM DS H-ALPHA TELESCOPE
In stock

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DAYSTAR ENERGY REJECTION FILTER FOR REFRACTORS
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DAYSTAR OFF-AXIS ENERGY REJECTION FILTER FOR SCT
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Up to 31% off

DAYSTAR IMAGING FLAT CAP

(1)

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ASKAR FMA180 PRO F/4.5 APO REFRACTOR

(4)

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7% off

ZWO SPARE 2" FILTER HOLDER FOR FILTER DRAWER V2

(2)

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DAYSTAR SOLAR SCOUT & SOLARQUEST MOUNT BUNDLE

(1)

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ZWO EAF BRACKET FOR TAKAHASHI

(2)

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ZWO EAF HAND CONTROLLER

(1)

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40% off

ZWO EAF TEMPERATURE SENSOR

(1)

Very low stock (1 unit)

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ZWO 2" TO 1.25" FILTER ADAPTER RING
In stock

Sale price $25.00AUD Regular price $29.00
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24% off

ZENITHSTAR 61 II F/5.9 APO DOUBLET

(4)

Gold

Sale price $989.00AUD Regular price $1,299.00
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FLUOROSTAR 132 F/6.9 APO TRIPLET
Gold Red Space Grey
Backordered

Sale price From $7,219.00AUD Regular price $7,999.00
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FLUOROSTAR 156 F/7.8 APO TRIPLET
Gold Red Blue
Backordered

Sale price $13,029.00AUD Regular price $13,999.00
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Up to 3% off

UNIGUIDE 50mm GUIDE SCOPE

(1)

Black Gold Red
In stock

Sale price $279.00AUD Regular price $289.00
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WILLIAM OPTICS DSD VIXEN DOVETAIL 210mm

(4)

Red Black
In stock

Regular price $79.00AUD
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Up to 11% off

WILLIAM OPTICS DSD VIXEN DOVETAIL 245mm

(1)

Red Black
In stock

Sale price $79.00AUD Regular price $89.00
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FLAT6AIII 0.8x REDUCER FOR GT71, GT81, Z81, Z103
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WILLIAM OPTICS COPPER M48 T-RING FOR CANON
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WILLIAM OPTICS M48 T-RING FOR CANON EOS-R
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