If the sampling accuracy achieved with the 2.3um pixel size falls into a reasonable range, then the unlocked Bin1 mode will enhance object details. When the gain value is 120, the magical HCG high gain mode is turned on, the readout noise is significantly reduced (as low as 1.2e), and the dynamic range basically unchanged. It ensures a very high dynamic range of up to 13 stops, which significantly reduces overexposure probability and helps achieve richer colour gradation. The full well capacity of 66387e of ASI 294MM Pro is among the best ASI DSO cameras. The ZWO ASI 294MM Pro has a large well depth capacity, low read-out noise and high dynamic range. Unlocked Bin1: 12bit ADC, 2.3um pixel size, 47 megapixels, 8288*5644 resolution, 14k full well capacity.īin2 (The default mode): 14bit ADC, 4.6um pixel size, 11.7 megapixels, 4144x2822 resolution, 66k full well capacity.Ĭompare the performance charts below to learn more about the differences between unlocked Bin1 and Bin2 modes. The default setting is Bin2 which gives 4.6um pixels, but you can switch to Bin1 mode in software to use the native pixel size of 2.3um. A back-illuminated structure minimises the degradation of sensitivity to optical angle response while also increasing the amount of light that enters each pixel due to the lack of obstacles, such as metal wiring and transistors that have been moved to the reverse of the silicon substrate.Ī special feature of the ASI294MM-Pro is the switchable pixel size. With a conventional front-illumination structure, the metal wiring and transistors on the silicon substrate surface that form the sensor’s light-sensitive area (photo-diode) impede photon gathering carried out by the on-chip lens. It retains the advantages of CMOS image sensors, such as low power consumption and high-speed operation. The back-illuminated CMOS sensor improves sensitivity and noise reduction – key factors to enhancing image quality - while radically realigning their fundamental pixel structure from front-illumination to back-illumination. Both have 14-bit ADC and a high dynamic range of 13 stops (even higher than the ASI1600MM Pro camera).Ĭamera Field of View Simulator Backlit Sensor The Mono ASI294MM Pro has very similar parameters as the colour version. Compatible with Windows / Mac OS / Linux.AR-coated protective window - all light can pass.USB3.0 Port (back compatible with USB2.0).Electronic shutter - no issues with vibrations sometimes found in mechanical shutters. 14Bit ADC - provides real 14bit dynamic range.
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