Rick Geyerman wrote:
OK. Next question, if that's OK...

I've read (here) about dust contamination on a digital camera's CMOS
sensors. Is it a big issue to swap these lenses back and forth in a
relatively quiet space? Or, are we talking *surgically clean.

My pictures are mostly for home use, but I've published magazine photos and
that was the purpose of my new purchase.

Dust is mostly an over rated problem, I rarely even think about it. I
am swaping lenses all the time and have very little trouble.

Pretty much the only problems you will run into is higher f numbers,
like f/16 and
even then it is normally not a big problem.

And cleaning the sensor is not all that hard either.

Scott