Letus 35 extreme, User Manual

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Letus35 Extreme User Guide
8
If you are still unable to achieve Infinity Focus repeat these steps. Once 7.
you are able to achieve Infinity Focus, next, repeat 1. Checking The
Focus for accuracy of your lens Focal Marks. If the lens Focal Marks are
inaccurate, follow Case 1 adjustment steps.
NOTES:
Be VERY careful pulling the Ground Glass
(GG) posts away from the adapter body. Avoid
touching the Ground Glass (GG) with bare fingers
as it will transfer oils to the Film Plane and may
cause unwanted effects in your image. If, by ac-
cident, you happen to pull one of the posts from
its socket DO NOT PANIC! Remove the Rubber
Boot from the post VERY carefully, then, with a
toothpick or the allen wrench you received with
your adapter, gently tuck the Rubber Boot back
into the mounting hole. Then, carefully re-insert
the Aluminum Post into the rubber boot. DO NOT
attempt to force the Aluminum Post with Rubber
Boot attached into the mounting hole for risk of
damaging the boot and Ground Glass (GG) mount-
ing system. Take your time and be very careful.
Cleaning The System: VI.
We try our best to ship each unit free of dust in the
Optical Path. However, the Magic of Dust Particles
is always surprising. In which case you may need to clean the optical path, refer
to the steps listed below: NOTE: If the dust moves when the unit is operating
it will more than likely be located on the Ground Glass (GG) and you will only
need to perform steps 1 – 3.
Open the front tube of the Letus35 Ex- 1.
treme 35mm DOF Adapter by removing
the four (4) screws and VERY carefully re-
move the tube. You will see the Ground
Glass (GG).
Clean the ground glass if you find the dust 2.
there. Only go on to next step if the speck
is stationary when the ground glass is ro-
tating, if it is clean, put the tube back on. If not, continue to step 3.
Clean the top surface of the condenser (the glass right below the 3.
ground glass). If the speck goes away, you are done cleaning, put the
tube back on. If not, continue to step 4.