Sir Gstutz44 . . . .
Should it be that you haven't touched the unit yet . . . do observe these precautionary
CAVEATS.
Get good lighting for initial observations and note the convex lens.
It is being electromechanically and magnetically controlled such that it can make
MICRO, and that is
HEAVEEEEE on the
micro movements, such that it can slightly move in both the X and Y planes, in addition to moving the lens up and down / in -out for FOCUS.
The X plane movement relates to a dual symbiotic working relationship between the use of a lead screw drive , that is always playing " catch up " to the limited electromechanical movement range that can be made to the lens positioning by its electromagnetic mechanical positioning .
Working in tandem, they combine to make a smooth reading / tracking of the units lens to the disc surface.
If the top of the lens has eventually accumulated debris resting upon its top, it's just like having a dirty pair of reading glasses. . . . relating to the adverse effect of the
CLOSE proximity of that deteris to the lens of the eye.
A pencil held at an arm's length is no great impediment to your eyes panoramic view, but one held at nose length is creating one hell of a blockage of vision.
Plus, the condition can be further aggravated by airborne drifting of cooking greases, cigar or cigarette smoke and their accompanying residue depositing upon the lens top within the unit.
Wood burning fireplaces say . . . me too . . . ME TOO !
Plus . . . . every one . . .particularly as a child . . . has seen STRONG direct sunlight flooding into a room and the resultant micro crud fibers that are aimlessly floating about in the air, after a person has moved thru their path.
LENS CLEANING . . .
I use a Q tip that is wetted in either denatured alcohol or ***** isopropyl alcohol *****, and I prefer the Q-tip that is a bit loose in its wound fluff, as compared to the REAL BONEY-FRIED Q-tip which seems to be quite tightly wound. In that case, I thumb-finger massage it a bit . . . . through an isolating paper towel . . . to loosen up its fluff.
Rest the side of the hand to be used, on the unit such that your grasping thumb and fingers can just reach to the lens and hen make uber controlled 1/8 inch
(seeing that you are . . . Amerikanski . . no metrics involved) circles with its tip.
Put no more pressure upon the top of the lens, than is being needed, to see the very-very short X-Y limits of movement / swing of the lens.
This
AIN'T being no Bull in the China shop category of work. Rotate the tip in quadrants so that 4 clean surfaces
get to clean the lens surface, which should be totally clean by that time.
Set aside the unit for drying time, then test out.
ILLUSTRATION . . . . .
Lens + its Mag drive coils + some lateral fibrous deteris, off to the side., now being non obstructive . . .
AT NO EXTRA CHARGE . . . . .
TIMELESS TECHNICAL TIP. . . . . or . . . . . . . a secondary use for that dormant power supply just otherwise . . . . . setting on the lab shelf
***** 100% isopropyl alcohol *****
You buy . . . velly-velly Cheeeeeeeeeeply . . . .on sale . . . .70% Drugstore isopropyl alcohol + make dual strip, close spaced long, flat plate stainless steel electrodes, with 2 connected leads and banana plugs on the leads ends + 12VDC or more power supply then leave bottles cap off and plug up the bottle tops hole and resultant 2 compressed wires at its sides with a flexible micro cellular sponge scrap plug --------> Yields ---------> electrolysis decomposes, all of the water content and is making 100% isopropyl alcohol, with time.( Watch the decline in current consumption )
73's de Edd
.....