38. Place LCD unit over two metal
posts and attach with three screws:
39. Solder metal shielding at
lower right corner:
40. Install ribbon cable from
camera back LCD display to hinged type connector. Be sure that
the cable inserts all the way into the connector...keep pushing
it in until it is fully seated in the connector and lock cable
in place by closing the black hinge on the connector.
41. Snap back cover into place
on camera. This is a good time to visually check the CF Card Cover
Switch as shown below. The purpose of this spring loaded switch
is that if the camera is powered on and the CF Card Cover is opened,
the switch pops outward and turns the camera off as a safety feature.
I updated this step
based on a note from Denis Slattery:
CF-card cover didn't work as designed when I first reassembled
the camera: popping it open is supposed to cause a power-down.
After a lot of squinting I found the cause. There's a tiny spring-loaded
plunger switch that pokes up through a hole and engages with a
tab on the CF cover. If it's not aligned right it gets squished
down and won't detect when the CF lid is popped. I took off the
camera cover again and had to tease the plunger assembly a little
toward the edge of the camera to get it to line up. Now it works."
Denis also commented
on an advantage of this switch not working:
it allows you to pop the CF card without powering down and I took
that to be a plus! BUT -- you can't do a firmware upgrade/hack
if that switch doesn't work. Something in the camera's operating
system looks to that switch for a trigger to load the .FIR file
in the root directory. I found out because no matter what I did
I couldn't get the hacked firmware to load until I fixed the switch,
whereupon it worked immediately."
42. Install rubber port cover
into slot in camera body and snap black piece over it:
43. Install two screws in CF card
44. Install two screws in plastic
port cover on side of camera. Note that the longer screw is for
the top hole near the neck strap bracket and small screw goes
in bottom hole near remote port:
45. Install three screws at the
bottom of camera:
46. Install last screw on back
and insert grey plug. Install the battery and CF card. All done!
Next is the anxious moment.......turning
the camera on and testing it to see if all works well. When I
turned my camera on, I got a message to reset the date and time.
This is normal since the battery had been out for a long time.
I reset both and the camera functions all worked well.
Here's another comparison showing
that focus of the original camera has been made. The "After
Modification" image is much redder with the camera's
auto white balance setting. The "After Mod. w/WB"
image is an image after the modification but with the camera set
at "Custom White Balance" and a Baader IR filter used
with the camera lens. The Rebel's "Custom White Balance"
involves taking a photo of a white card and setting the camera
to use this image to correct the white balance. The Custom White
Balance setting is stored in the camera so the color of daytime
images with the camera are well balanced.
Page 8 for methods of Correcting
Color Balance including use of color correcting filter and Page 10 for daytime testing with color
Modification__________After Mod. w/ WB
on above images for larger images
If you completed the modification
and would like to let me know how it went for you, you can contact
me at the following email address:
I will add any comments to the
modification instructions that might be helpful to others and
a link to your site if you wish.
For comments from those that have
done the modification CLICK
HERE for links to web
sites of others who have done the mocification.
See my plans for peltier cooling
of the CMOS imaging chip and check back for astrophotographs taken
with the modfied camera.
2: Plans for Peltier Cooling
------Order these two guides by Jerry
Lodriguss for DSLR Astro-imaging------
So you now have a modified DSLR
for astro imaging. If you are a beginner to DSLR astrophotography,
your next best step is to learn all you can about using your modified
DSLR. When I complete camera modifications for owners, I get many
questions afterward about how to use the camera, including: How
to get precise focus? Which exposure settings to use? How to calibrate,
align and stack exposures? How to adjust white balance? How to
I am happy to advise and welcome
all questions, but the best advice I can give is to order "A
Beginner's Guide To DSLR Astrophotography". The book
on CD-ROM is authored by Jerry Lodriguss, a professional photographer,
amateur astronomer and astrophotographer. Based on his over 25
years of astrophotography experience, he makes it an easy learning
process to capture and process astro images. Jerry also has a
more advanced book on CD-ROM available: "A
Guide to Astrophotography with DSLR Cameras". Consider
arming yourself with both these books on CD-ROM, read them at
your leisure and maximize your potential for capturing and creating
the most spectacular DSLR astro images your modified camera can
in the United States can place orders for Jerry's Books on CD-ROM
Domestic orders for "A Beginner's
Guide To DSLR Astrophotography".
Domestic orders for "A Guide to Astrophotography
with DSLR Cameras".
outside of the United States can place orders for Jerry's Books
on CD-ROM here:
Foreign orders for "A Beginner's
Guide To DSLR Astrophotography".
Foreign orders for "A Guide to Astrophotography
with DSLR Cameras".
My Astrophotography & Digital Imaging Home Page
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