Now we are studying to release cooled 5D MarkIII.

Below images the prototype design of  it and be possible to be changed.

Prepare LR44 battery 2ea, Micro size hex L wrench set (1.27, 1.5, 2, 2.5mm …)

1. Unscrew four M2 screw using 1.27mm hex wrench.

2.Unscrew M3 Socket Set Screw using 1.5mm hex wrench.

3.Open the cover plate.

4.Detach the thermometer panel from body.

5.Open the battery cover.

6.Replace the battery.

7.Assemble in reverse order.

* Baader 2″ UV/IR Blocking filter(48mm thread) installed for Astro-imaging only.

Telescope + 2″ Astronomical Filter + Camera

Camera Lens + Camera

Camera Lense + 2″ Astronomical Filter + Camera

＊Optically polished Hoya MC clear filter installed.

Telescope + 2″ Astronomical Filter + Camera

Camera Lens + Camera

Camera Lense + 2″ Astronomical Filter + Camera

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Microscope image of eos 40d CMOS sensor surface.
You can see micro lenses removed area and micro lens remainded area.
Dark area are microlens on CFA layer. 1unit of color Filter pattern is Green/Green/Blue/Red.

Dark Frame Comparison

We compared the dark frame shots of unmodified camera and cooling modified camera and the models are EOS 1100D(= Rebel T3, Kiss X50 ) and CDS-1100D / EOS 600D (=Rebel T3i, Kiss X5) and CDS-600D / EOS 60D and Astro60D.The images were taken at indoor dark room and the exposure time was 450sec ( 7.5 minutes).We croped 224×224 pixels in center area of original images and not resized.

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Prepare the tools and insulted gloves for the work.

Prepare double-sided adhesive tape for screw capturing. All removed screw must be stored in order.

Unscrew the 2 small hex screws.

You can see the folded cables at the backside of  Excooler label removed.

Using pinset carefully and slowly pull out the heat shrinkable tube covered cable connections.

Please remove the shrinkable cable covering and capture the photo of the cable connections for safe reconnection.

Using soldering iron detach the cable connection. Remember the original cable connections.
Please attach the identification labels to the separated cables.

Remove two fixing screw at the LCD hinge .

Remove the hinge cover.

Remove the 3 screw on bottom of camera.

Open the battery cover and memory slot cover. Turn the LCD to 90degree.

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Hold the excooler housing firmly and lift up the back cover very very slowly.

Slightly open the back cover to exposure the LCD connector.

Release the FPCB connector from Main Board. Using pinset hold and Lift up.

Remove the back cover from the slowly.  The separated cables must be arranged for reassemble.

Please check this connector . disconnect-> reconnect 

Reassemble the camera.

Re-assembly process is the reverse order of disassembly.

Important things on your resemble work.

Check the connector coupling; LCD to M/B, trash button connector.

The right +,- soldering and insulation of temperature sensor, Peltier, Anti-dew heater cable.

I pray for your success in DIY repair. God bless you.

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