Hey, great news! Now the next question. Where did the foam come from?
Chuck Norcutt
Philip Pemberton wrote:
> Hi folks,
> Well, I've sorted it. Took apart the back section of the lens and had a
> look at the aperture slats - hmm, not a speck of oil on them - just a
> clean, uniformly black iris. Not only that, but when I manipulated the lever
> with a small pair of tweezers, it felt completely smooth. So I did the next
> logical thing - I pulled the mounting base apart.
>
> After I did that, the cause of the stickiness was immediately apparent. Two
> pieces of oily yellow foam had wedged themselves inside the aperture return
> spring. Needless to say, these quite sizable pieces of foam were reducing the
> spring's effectiveness to the point where the aperture would not spring back
> open properly on the smaller apertures (anything smaller than f8). Removing
> the foam with a toothpick seems to have sorted the spring out - now the
> aperture is working well enough to make the lens usable without the "lens
> dance".
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|