Hi!!
Ref.: 'Restoration of rear lens cap'.
The BEST and SAFEST method to restore RLC is as follows.
Take a GOOD 'two tube EPOXY' mix a small amount* apply on
the top surface of the RLC * allow 24 hours to DRY in an pen
area, preferrably under/ around a light bulb * Once its dry,
FIle off excess and polish the surface till the cap sits
tight on the lens rear without slipping.
It WORKS great and is applicable for most Bayonet type RLC.
TAKE CARE, make sure the EPOXY is completely dry before
fixing lens.
This should last for a couple of years or at least a
thousand lens changes.
Sunil Manga.
vonstahl@xxxxxxxxxxxxxxx wrote:
>
> After using rear lens caps for some time they tend to not be able to attach
> firmly to the lens any more, which is due to that the three plastic pieces
> located inside the cap and which go along the edge of the cap, have been
> worn down.
>
> An easy way to fix this is to use a pair of pliers to press these three
> pieces of plastic somewhat flatter and due to that they also will get wider
> and thus will be able to hold the cap firmly onto the lens again. The right
> point to apply pressure at is where these three pieces of plastic do a sharp
> 90 degree bend to the covered side of the cap.
>
> I use a pair of pliers which are about 3 mm (1/8") wide at the top and put
> something soft (a piece of hard erasing rubber or similar) between the outer
> edge of the cap and the tool to avoid marks on the outer surface of the cap.
>
> By using the methode described above I assume (although I have not tested it
> yet), that it would be possible to apply pressure onto these three pieces of
> plastic not in the proximity of the 90 degree bend but slightly before, thus
> making the cap to "snap" when it has been turned to the position which will
> fasten it fully to the lens.
>
> Boris von Stahl
> Stockholm, Sweden
>
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