SuperSonic Wave Filter

[Nickle S.]

I would imagine they're a lot tess than the risks involved in

cleaning the CCD on any existing digital camera. You would be
millimeters away from anything sensitive like the SWF or mirror.
And the SWF itself will be hard optical glass, not an easy to
scratch Lithium Niobate AA filter, like you have to clean on Nikon
and Canon cameras.

I must take issue with you here, Joseph. If you have the proper
tools, materials and method, I find it very difficult to damage the
AA filter. Now, will the filter show wear and tear after 10,000
swabbings? Probably, but by that time my great-grandchildren will
be shooting an Olympus QD (Quantum Digital).

The SWF runs at camera power up (or when manually triggered) not
during every exposure. So you'll get whatever dust doesn't clear
the SWF by your first exposure, or whatever new dust impacts the
SWF after the cleaning cycle.

I'm still very lost on this point. So, in other words, after the
SSW does it's thing, any rogue particles of dust, which may have
been in all the many nooks and crannies of the chamber or on the
mirror, may still be attracted to the CCD and visable in the
images?????

Now, on a Nikon D100, I do a manual cleaning (sensor swab) about

every two months. It takes longer than that for dust to reach
annoying levels.

It's just my observation that even with my 28-70F/2.8AF-S or a
prime on my D1X, several hundred photos a week will still introduce
maybe 3 to 10 particles which will be noticeable in my skies. I
feel that any pro shooting that much and changing lenses on a
normal basis will need to clean their CCD once a week or, at the
very least,

once every other week (EDITED).

Thom Hogan has said exactly the same thing over on the Nikon D-SLR forum. If you are in this as a hobby, then, yes, once a month or 2 months should be fine.

Thanks again Joseph for your expertise. This is really interesting
and even if SSW is a partial success, it still will be a fantastic
advancement for digital photography.

Nicholas