Too much dust inside the inner lens of an Oly 12-40 f2.8 Pro ?

Started 2 months ago | Discussions thread
cba_melbourne Senior Member • Posts: 3,140
Re: Too much dust inside the inner lens of an Oly 12-40 f2.8 Pro ?
1

meow wrote:

Funny Valentine wrote:

petergerritsen wrote:

When zooming to 40mm the tube has a little play/wobble/rattle. maybe thats the reason dust can come in?

Sheers Peter

I agree, the 12-40 has a lot of barrel wobbling/play issue. It's potentially a way of entry for large dust particles to get under the hydrophobic mesh and inside the lens.

Is mine the only copy that doesn't wobble? Strange.

Hmm. I just checked my 12-40. The wobble is 0.8mm fully extended.

My little 12-32 has fully extended 0.7mm wobble. But it is a silent wobble.

The 12-40 has a noisy wobble, that is why it appears much more than it really is.

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