ZWO ASI 294 MM-P astronomy cameras opinie

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The ZWO ASI 294 MM Pro camera is a monochrome version of the ZWO ASI 294 MC Pro model, which has consistently received very good reviews.

The use of an optical sensor built using "back-illuminated" technology has achieved unprecedented sensitivity, allowing the detection of even the weakest signals from the most distant deep-space objects. A 14-bit ADC with a wide dynamic range is responsible for processing the signal from the sensor.

A two-stage cooling system based on Peltier cells is responsible for maintaining a low dark current of the sensor even during long exposures, ensuring absolutely negligible noise at the level of 0.0022 e/s/pix.

The most important features of the ZWO ASI 294 MM Pro camera

• monochrome version of the incredibly popular ZWO ASI 294 MC Pro camera
• huge capacity of the potential well, amounting to as much as 66 ke
• 14-bit ADC for wide dynamic range
• 512 MB DDR3 memory acting as a buffer ensuring stable data transmission
• very efficient, two-stage cooling system based on the Peltier module
• polyamide heater preventing condensation of water vapor on the matrix window

Technical parameters

• matrix: Sony IMX294 (monochrome)
• matrix type: CMOS
• matrix size: 19.1 x 13.0 mm (4/3" format), diagonal 23.2 mm
• matrix resolution: 11.7 MPix, 4144 x 2822 px
• single pixel size: 2.3 µm (bin 1)
• capacity of the potential well: 66.0 ke
• peak quantum efficiency: 90%
• exposure time: 32 µs - 2000 s
• ROI (Region of Interest Selection): yes
• shutter type: rolling shutter, electronic
• back focus: 6.5 / 17.5 mm
• ADC: 14 bit
• buffer size: 512 MB DDR3
• compatible operating systems: Windows, Mac OS, Linux
• ports: 1x USB 3.0 (in), 2x USB 2.0 (out), ST4
• cooling system: 2-stage, Peltier cells, maximum power consumption 12 V / 3 A
• camera power consumption: 5V, 650 mA
• minimum permissible operating temperature: -5°C
• maximum permissible operating temperature: 45°C
• connector: M42x0.75
• dimensions: 78 x 73.5 mm
• weight: 420 g

Set components

• ZWO ASI 294 MM Pro camera
• cover for transport and storage
• 1.25" nose
• 1.25" plug
• USB 3.0 cable (2 m)
• USB 2.0 cable (0.5 m)
• adapter ring T2 21 mm
• adapter ring T2-M48, 16.5 mm
• M42 - M48 adapter
• T2 adapter - 1.25"
• user manual

Guarantee

24 months

Our tests

(Object: America Nebula / Pelican Nebula, constellation of Cygnus; click to see full-size image; see also on Astrobin [CLICK] )

A multi-test photo, while checking:
• Askar 108 FRA600 tubes for a potential customer
• reducer dedicated to FRA600 (is it cool)
• ZWO 294 MM-P cameras for calibration due to customer difficulties
(see: [Link in Astropolis] and [link KNOWLEDGE BASE teleskopy.pl]
• do small filters - 1.25" - from ZWO "do it"

It turned out quite well (a good indication of which is that the author - Przemysław M. - received first a Top Pick Nomination and then a Top Pick distinction in Astrobin [LINK]) . You could say: the tube works :-)

NB: Below is the full setup. It's worth noting that aside from the tube (the Askar FRA600 is a mid-range astrophotography product) and the mount (the same Sky-Watcher EQ6-R), the remaining components are among the cheapest (a ZWO EFW 5x1.25" telescope, ZWO HSO+IR 1.25" filters, ZWO 178 MM for guiding, and ZWO 294 MM-P as the main camera). We recommend this setup for consideration by those who believe that equipment can replace understanding the principles of astrophotography and thorough processing. The ZWO filters are a particularly pleasant surprise, as few people rely on them because they're so inexpensive.

• Object: America Nebula / Pelican Nebula, constellation of Cygnus
• Main telescope: ASKAR FRA600 F5.6
• Main cameras: ZWO ASI294MM Pro
• Mounts: Sky-Watcher EQ6-R Pro
• Guide telescope: ZWO Guidescope 60 mm / 280 mm
• Guide camera: ZWO ASI 178MM
• Focal reducers: ASKAR FRA600 x0.7 f/3.9 reducer
• Software: Open PHD Guiding PHD2 Guiding 2.69; Nighttime Imaging 'N' Astronomy; Adobe Photoshop CC 5; Pleiades Astrophoto SL PixInsight 1.8 Ripley
• Filters: ZWO Ha 1.25" 7nm · ZWO S2 1.25" 7nm · ZWO O3 1.25" 7nm · ZWO IR/UV Cut 1.25"
• Accessories: ZWO EFW 1.25 x 5
• Dates: June 18, 2021, June 19, 2021, June 20, 2021

• Cages:
- ZWO Ha 1.25" 7nm: 41x300" (3h 25') (gain: 120.00) -15C bin 2x2
- ZWO O3 1.25" 7nm: 31x300" (2h 35') (gain: 120.00) -15C bin 2x2
- ZWO S2 1.25" 7nm: 43x300" (3h 35') (gain: 120.00) -15C bin 2x2

• Exposure time: 9h 35'
• Darks: ~211
• Flats: ~100
• Darks for flats: ~100
• Average age of the Moon (after new moon): 8.80 days
• Average Moon phase: 64.62%
• Bortle's sky brightness scale: 3.00
• Average SQM: 21.00
• Average FWHM: 3.00
• Temperature: 20.00

User photo

• Object : Soul Nebula - IC 1848 in Cassiopeia
• Setup : optics: TS Hypergraph 6 150 mm F/2.8, mount: Losmandy GM8; filter: Antlia Ha 3 nm 2", sensors: ZWO ASI 294 MM-P (23 hours) + ZWO ASI 2600 MM-P (3 hours)
• Performance : narrowband in the hydrogen line, from Bortle 8 ( Warsaw, balcony , total 26 hours of acquisition)
• Author : Roman Dróżdż
Published with the author's consent

(click to see full size photo)