{"id":16975,"date":"2026-09-19T11:14:22","date_gmt":"2026-09-19T09:14:22","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=16975"},"modified":"2026-11-02T11:56:10","modified_gmt":"2026-11-02T10:56:10","slug":"zwo-asi183mm-pro","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/zwo-asi183mm-pro\/","title":{"rendered":"ZWO ASI183MM Pro"},"content":{"rendered":"

ZWO ASI183MM Pro: 2.4 \u00b5m pixels for short focal lengths<\/h3>\n

The ASI183MM Pro is a cooled monochrome camera whose Sony IMX183 sensor offers 5496 \u00d7 3672 pixels on a 13.2 \u00d7 8.8 mm area. Its unique feature lies in its small 2.4 \u00b5m pixels: they allow for fine sampling without requiring a long focal length. It is therefore worth considering for use with a short, well-corrected telescope when seeking to preserve detail in the structures of nebulae or in small objects within the field of view.<\/p>\n

Choosing a Camera and Instrument Combination<\/h3>\n

About 20 megapixels at this format don\u2019t provide the same field of view as a large sensor. Before making your choice, simulate the framing using the actual focal length, including the teleconverter. At long focal lengths, these pixels can lead to oversampling: tracking demands increase without necessarily revealing more detail amid turbulence. Precise focusing and consistent tracking are therefore just as important as resolution. This model stands out for the fineness of its pixel pitch, not for a universal promise of superior resolution.<\/p>\n

Monochrome: Organizing Color and Narrow Stripes<\/h3>\n

Without a color filter array, the sensor is used for luminance acquisitions or behind selected filters. A color image requires separate series of exposures and their combination, for example in RGB or with a selection of narrowband filters suitable for emission nebulae. Allow sufficient time per channel and plan for the installation of a filter wheel if your project requires it. The built-in USB 2.0 hub allows you to connect accessories, while the main USB 3.0 connection transfers images to the acquisition system.<\/p>\n

Calibration should be performed as soon as the photo is taken<\/h3>\n

The advertised maximum capacity is 15,000 electrons, and the conversion is performed using 12 bits. Bright stars can therefore require shorter exposure times than the faint extensions of the target alone would suggest. Readout noise depends on the gain; ZWO quotes 1.6 electrons at 30 dB. The buffer and internal processing limit amp-glow, but this model is not advertised as being free of this glow. Take dark frames with the same exposure time, temperature, and settings as your images to calibrate this signal consistently.<\/p>\n

Cooling and Additional Uses<\/h3>\n

Active cooling helps control thermal noise during long exposures. The product datasheet specifies a temperature difference of 35 \u00b0C below ambient; it is important to maintain a control margin rather than systematically aiming for the lowest possible temperature. ZWO requires an external power supply of 11 to 14 V, even when cooling is not in use, and recommends a suitable 12 V power supply. Do not rely solely on the USB cable.<\/p>\n

The advertised frame rate reaches 19 frames per second at full resolution, with higher frame rates in a reduced window. This also makes it suitable for lunar imaging, but the camera is primarily intended for finely sampled deep-sky imaging. An important point for another application: ZWO notes a possible grid pattern in H-alpha solar imaging and recommends using flat-field images. It is therefore not the simplest choice for this specialty; furthermore, all solar imaging requires appropriate and properly installed solar filters.<\/p>\n

Documentation and Compatibility: ZWO official data sheet<\/a>.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

The ASI183MM Pro is a cooled monochrome camera featuring a Sony IMX183 sensor with a resolution of 5496 \u00d7 3672 pixels and a pixel pitch of 2.4 \u00b5m, making it suitable for high-resolution imaging at short focal lengths. It allows for filter-based image acquisition, requiring careful calibration of amp-glow and verification of the risk of oversampling at long focal lengths.<\/p>","protected":false},"featured_media":16974,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[893],"product_cat":[768],"product_tag":[],"class_list":["post-16975","product","type-product","status-publish","has-post-thumbnail","product_brand-zwo","product_cat-ciel-profond","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/16975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=16975"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/16974"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=16975"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=16975"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=16975"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=16975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}