Camera Usage of Clear Filter mounted CDS-600D, CDS-1100D

*Optically polished Hoya MC clear filter installed.

Telescope + 2″ Astronomical Filter + Camera

Camera Lens + Camera

Camera Lense + 2″ Astronomical Filter + Camera

compare

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DarkFrame comparison :1100D,600D,60D,50D,40D

The images were taken at indoor dark room (Temperature : 20C~22C) and the exposure time was 450sec ( 7.5 minutes).We croped 224×224 pixels in center area of original images and not resized.

In order to distinguish the deferance of each shots more easily we stretched the tone levels in Photoshop program. The default value of highlight Levels is 255 and we stretched this to  30Levels. Read more

Micro lens & Color filter array on Image sensor

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.

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CDS-600D, CDS-1100D Dark Frame Comparison

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.

levels

 

 

 

 

 

 

 

 

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Images of Astro60D

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Disassembly of Astro60D for trash button DIY repair

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.

Remove the screws under right hand grip.
Remove 3 screws near view finder.
Take off the rubber cover of left side.
Remove the screws on the left side.

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.

Cooled DSLR History 5

…(1)   …(2)   …(3)   …(4)         Cooled DSLR History (5)        First Page☞

 

copper skiving fin heat sink…………………………………….06. 05. 27

To make removable cooling unit more compacted I looked at the coolers for the computers that are distributed in the market place. First the CPU coolers were getting bigger as clock is getting higher and more heat is coming out, and heatpipe products were getting main product. There were few product of VGA cooler which is small and cool but after testing it’s functions were not good enough. So I finally came up with the Taiwan’s Cooljack slim cooler product after looking at CPU with copper heat sink with great functions. With 3~4mm thick plate and soldering the cooler pin to a copper plate is normal ways of making this but this company used thick copper plate and cutted off the cooler pin to high the function of heat delivery. Read more

Cooled DSLR History 3

…(1)   …(2)     Cooled DSLR History (3)      …(4)     …(5)        Next Page☞

 

A study of cooling system using HeatPipe………………………………. 05. 10. 30.

 

Upper picture is a thin heatpipe cooler used regularly in notebook computers. I used this minicooler concept on cooling CMOS sensors.

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