ASTRO 60D(Cooling Modified Canon eos 60D)

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Canon’s high performance CMOS and more improved NR technology

The EOS 60D features a new, Canon-designed 18.0 Megapixel APS-C size CMOS sensor that captures such a high level of resolution, it’s easy to crop images for enlargement without concern of losing detail. A major factor in reducing noise, the CMOS sensor assures that images shot at highest sensitivity will be remarkably smooth.
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he more integration of pixels make drop the light gathering ability of the sensor. To overcome this defect canon applied a new micro lens design and excellent noise reduction processing of DIGIC4 made possible 1stop expended ISO setting in usual mode.

ISO 6400 with low noise gives more potential to Astro photographers. In addition to this our new TEC cooling module for 60D you can make a high quality astro photography using only one shot image. It’ll be very useful to comet catcher or constellation shot with landscape.

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The magnesium alloy construction that featured in previous models, replaced by a lighter weight polycarbonate shell reinforced with fiber glass. Camera weight became more lighter. it made possible to cut more easily and exact cutting edge by CNC machine when modify the camera body.As a result the external appearance of astro60D became more elegance.

Big Vari-angle LCD
A first for any EOS, the EOS 60D features a bright, high resolution, flip-out Vari-angle 3.0-inch Clear View LCD monitor for shooting at a variety of angles. By easily switching between low and high angles, the EOS 60D freely enables angle adjustments even if the camera is mounted on refractor or newtonian telescope.

Improved EOS HD video mode
EOS 60D can capture 1920 x 1080 Full HD video at frame rates of 30 (29.97 fps), 24 (23.976 fps) and 25.0 frames per second, for up to 4GB per clip. Video footage is saved as MOV files and can be viewed in Full HD through the EOS 60D DSLR’s HDMI output. 24/30 fps delivers cinema-like motion, while 60 fps is perfect for footage being uploaded to video-sharing websites.
DSLR video capture has a weakness the limited shooting time caused by rising temperature of CMOS sensor. Astro60D overcame this limit of DSLR movie.
Through the peltier cooling Astro60D made possible continuous HD shooting with absolutely low noise.

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New Powerful Cooling
CentralDS Cooled DSLRs have TEC cooling system applied peltier effect of P,N semiconductor. Astro60D use high performance peltier module of TE Technology, Inc. USA. It has high temperature difference (DTmax=71°C) and big heat pumping capacity (Qmax=16watts).

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Astro50D’s cooling module has heat transfer sequence of [CMOS – Cold finger – Peltier element – Airtight chamber body – Heat sink]. The new concept of Astro60D is [CMOS – Cold finger – Airtight chamber body – Peltier element – Heat sink] we removed 1step(=Airtight chamber body) and made a direct contact Peltier to Heat sink.Therefore – 26°C below Ambient air temperature cooling is realized. It’s 150% cooling performance than that of Astro50D
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Spectrum enhanced UV/IR blocking filter
Tho Low-Pass-Filter of image sensor(=CMOS or CCD) designed to looks like color feeling of human eye. In this case the camera makers use IR absorbing glass and it cuts off not only IR but also the ray from yellow to red band broadly.
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Original Canon’s Low Pass Filter cuts a lot of H alpha line (656nm) and the total amount of Ha reached CMOS is only 30%. We replaced this filter to UV/IR blocking filter.The spectrum enhanced UV/IR blocking filter installed at Astro60D pass the visible ray 400nm~670nm with very high and stable transfer rate(=98%) and applied AR coating on both side too. This filter is optimum filter for Astro photography. Great nebular images with rich color of our customers are the evidence.


Perfect Anti-Dew system
Anti-dew is very important matter of our cooled DSLR. Using micro film heater and the long temperature slope of cold parts,from the Peltier to CMOS. We realized very simple and safe anti-dew without chemical desiccant. We practice serious inspections about sealing of airtight chamber and attained to dew-free sensor cooling module.


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Protection of the optical axis

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Astro60D has aluminum heat sink for low weight and the cover housing is seen as a big one. but it’s only a aluminum cover housing of heatsink and light weight. and The weight balance from CMOS center is improved than Astro40D or 50D. The moment of power is smaller than that of Astro50D with copper heatsink . And at astro 60D to keep parallelism between CMOS and lens mount we separated cover housing from airtight chamber and CMOS modules. and it protect the direct shock to airtight chamber and make safe the optical axis.

More lighter Heatsink
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Heatsink performance is determined by heat transfer efficiency and the size of heat radiation area. In former AstroDSLRs we used thin copper heat sink for smaller size and fast heat transfer.

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cooljag’s skiving fin copper heatsink is very good for our purpose. We changed Astro60D’s concept to lighter and higher cooling power. And we choose the big size aluminum skiving fin heatsink of COOLJAG, TAIWAN. This new heatsink has light and wider fin distance and radiation area. These made possible more fast and silent airflow with no vibration and contributed to jumped cooling power of Astro60D.


Safe Modification
To install the sensor cooling module at camera we must secure the space around image sensor. This is very troublesome for us.


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Steel frame cutting and PCB modification can’t be helped. These work is very dangerous and high risk.
In case of Astro60D we greatly reduced these electric circuit modification of camera. For this we moved the EXcooler from side to back of camera.


User Interface
The thermometer became one to Excooler made possible easy check of cooling temperature and the disappeared wire to thermometer help photographer to tidy and simplified the shooting environment.
There are several pointing out about the air direction of excooler the blow to photographer’s face. The Airflow of Astro60D’s Excooler is designed in consideration of user’s this need and more comfortable operating is possible.


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< Astro60D, Dark Frame shot  cooling ON/OFF Comparison>


*Cool down the temperature of CMOS sensor about 26 Celsius degree(±2℃) from that of ambient air.
*Absolutely high-Quality image in B-shutter use compared with uncooled DSLR
*Realtime monitoring of the temperature of CMOS sensor
*Use of high efficiency Peltier module of TE Technology, Inc. USA.
*Power: 12V, 3.6A DC
*Spectrum Enhanced UV/IR blocking filter modification included.
*Optimal design by 3D CAD modelling
*Precision manufacturing by CNC machine
*Perfect tuning of optical axis of CMOS sensor by 3 point alignment method
*Permanent Anti-dew system applied.
*Excooler and camera body became one.
*Live-view Focus function alive.
*18.0 Megapixel CMOS sensor and DIGIC 4 Imaging Processor for high image quality and speed.
*ISO 100 – 6400 (expandable to 12800) for shooting from bright to dim light.
*Improved EOS HD Video mode with manual exposure control
*Vari-angle 3.0-inch Clear View LCD monitor
*weight: 1,100 g