1) Obtain some high quality jeweler's screwdrivers. Do not
use cheap screwdrivers or you'll just end up stripping the heads
of the screws leaving your camera unserviceable. The 12 piece
Micro Screwdriver Set available at Sears works well and is reasonably
priced at around $20.
2) Ground yourself using a grounding strap.
3) Remove any film that may be in the camera.
4) Open the battery cover and remove the battery. Notice the
silver pins that are used as hinges for the battery cover. Use
a screwdriver to push the pins toward the center and remove
them. Do one pin at a time because there is not enough room
in the groove to do both simultaneously. Press down the release
latch on the left side and remove the film back.
5) While making sure to apply adequate pressure to prevent
stripping of the screw heads, remove the screw near the battery
hinge, the screw in the bottom left corner normally covered
by the film back, and the screw on the bottom right side of
the camera which is normally covered by the battery cover. Be
sure to remember where each screw goes.
6) Gently pry up the right side of the back shell. Lift it
up, push it to the left so the shell clears film back release
latch, and then remove it completely.
7) Turn the back shell over and you will see a metal piece
of stamped sheet metal attached to the panoramic selector switch.
Notice that this piece has a rectangular slot used to mate the
panoramic selector switch with a lever on the camera which operates
the film mask. By enlarging this slot, we can make sure the
lever on the camera will not be actuated no matter what position
the panoramic selector is in and thus the mask will be disabled
and the camera will capture all images at full frame.
8) Remove the screw that holds down the metal piece and pull
the metal piece off. Using a Dremel tool or a small file, enlarge
the rectangular slot (towards the screw hole) just enough so
that the lever on the camera never comes in contact with it
when the switch is slid to the panoramic position. You may have
to reattach it and and test it several times to make sure the
masks don't come down but it's important that you don't enlarge
it any more than you need to.
9) Reassemble the camera by reversing the steps above.
Your Ricoh R1 should now be able to capture full frame images
at both the 24mm and 30mm focal lengths.