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5D Mark IV is high end DSLR of Canon with new technology 30MP(5.36μm pixel size) Full Frame CMOS. Thanks to upgraded Dynamic Range and image processing algorithm, 5D Mark IV deliver high quality low light performance compared to that of 5D Mark III. 4K Movie, Bulb timer etc., many new helpful functions were added, but the weight is 60gram lighter than 5D MArk III.
Astro 200D, Astro 80D are the cooled camera version of canon’s 80D and 200D APS-C sensor DSLRs.
These two models are equipping new upgraded CMOS sensor applied On-Chip ADC technology and give us higher low light performance and good Dynamic Range compared to former canon’s DSLR’s.
The launch of Sony’s A7s this year is remarkable because of it’s very good low light performance and 4K movie mode with it’s Full Frame image sensor.
The A7s 12 megapixels is small compared to other full frame digital cameras but this camera is special to amateur astronomers because of it’s ultra high iso (up to 409,600).
Astro6D is a cooling modified Canon EOS 6D.
Up until now we have used two methods to modify Canon DSLR’s to a cooled configuration.
The first is to insert a cooling module into the camera body, whilst the other is a reconfiguration of the camera system, as in the case of CDS-5D.
The inner space of the 6D and A7s is so tight that we have introduced a new modification concept for these cameras.
At last we launched the upgraded CDS-600D with new design as the name of CDS-600D II and CDS-600D II Pro with more powerful cooling.
Drop-In filter holder for 2 inch astronomical filters is equipped in these cameras.
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