(a) Transport mechanism. Remove the lens from the camera. Lock the
mirror in the up position. Swing open the back of the camera body. Blow
out any dust or foreign matter that may be inside the camera body.
(b) Pressure plate (figure 125). Gently wipe the surface of the
pressure plate with a clean piece of lens tissue. If further cleaning is
required, moisten a piece of lens tissue with lens cleaner and wipe the
pressure plate. Remove any moisture with a piece of dry lens tissue.
(1) Metal surfaces. Clean the outside metal surfaces of the lens.
Follow the procedure for exterior cleaning as described in a(1) above.
Dust particles are abrasive and can damage optical
surfaces. Fingermarks and other foreign matter should be
removed carefully as soon as possible. Do NOT use tissue
or cloth intended for eyeglass cleaning. Such materials
usually contain silicone which will leave a deposit
damaging the coating of the lens. Do NOT use more lens
cleaner than necessary to moisten the lens tissue. Excess
liquid may seep between the elements, dissolve the binding
medium, and damage the lens.
(2) Optical surfaces.
(a) Front surface. Brush the surface with a clean camel's hair brush.
If further cleaning is required, breathe lightly on the surface and wipe
with a clean piece of crumpled lens tissue. If foreign matter still
remains, moisten a piece of lens tissue with lens cleaner and wipe the
surface. Remove any moisture with a fresh piece of lens tissue.
(b) Rear surface. Clean the rear surface as described in (a) above.
(c) Eveready case. Wipe down the interior and exterior surfaces with a
clean, lintfree cloth. Remove dirt from around the snaps. Blow dust from
inside the case. If necessary, the exterior of the case may be cleaned with
a damp cloth and mild soap. Remove all soap with a clean damp cloth.