On Oct 27, 2005, at 9:35 PM, William Robb wrote:
That reminds me. It's probably about time to clean the sensor
again. I'm guessing I end up cleaning it 4 - 6 times a year. If
I see the dust in an image, it gets cleaned right away. If I'm
making a special effort to get some shots, driving for 2 hours,
etc., it gets cleaned as a matter of preventive maintenance.
It seems more important if the lens is very long, or else if I am
shooting macro.
It's MOST important if you tend to work at small lens openings a lot.
I tend to work between wide open and f/8 most of the time with my
usual range of focal lengths.
Godfrey
