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Originally Posted by stunsworth
Hi Greg, it won't be an issue. I've just checked with a DOF calculator and focussed at 3 feet and f16 the DOF is 1.12 feet to infinity. The dust spots will only be inches from the plane of focus.
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Hi Leo,
I use my fisheye-elmarit very often, mostly at f8 to f16. Although the front lens is clear and clean in the morning, more and more dust can be found there, the later it is.
On the slides I only see big spots of water on the front lens. Such small particles can hardly be seen, even on my all-sky-pictures of athmospheric phenomena.
Replacing the front lens will be very, very expensive.
If you only care about the results and if you'll use the lens not very often -- go for it!
Regards
Torsten