Photo credit: © Mehmet Ergün The first Nikon CDS cooled Z6 mirrorless camera for astrophotography is now available for sale at Centralds - the company converted a regular Nikon Z6 to an Astro Z6 version. The price is $2,990. To achieve effective cooling, they actually moved the sensor outside of the camera and performed several other modifications: "We took out the image sensor and moved it towards the lens and made a cooling module. Extracted CMOS sensor from camera body located in front of mechanical shutter, the exposure control by mechanical shutter is impossible and can’t use optical view finder. But there is sufficient extra space between CMOS and Mount Ring, we can install Drop-In Filter system in the space. The Housing of cooling module of CDS Cooled Z6 is functioning as heatsink for heat radiation of Peltier element and it’s temperature is higher than that of ambient air.This housing deliver the heat to Clear Window in front of CMOS and make it warm. Therefore it make Anti-Dew condition of window.The temperature of CMOS surface is very low and need more special Anti-Dew solution.First we made an airtight chamber with O-ring and blocked inflow of vapor into cooling module. And we prepared cold block with large surface area at cold surface on TEC. CMOS is surrounding this cold block and cool down by the conduction from it.The surface of cold block captures vapor molecule more earlier than that of CMOS and this method prevent the dew condensation...
Published By: Nikonrumors - Wednesday, 20 May, 2020