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Comment by PentaxUser posted on istDs shooting half the picture taken at 16/08/2011 - 22:14
SMCP-K 500mm 1:5.6 is my choice. I've used mine twice since acquiring it, but I will not part with it.
Comment by PentaxUser posted on Least used, but difficult to part with ? at 01/02/2010 - 15:44
Remove the lens, set exposure mode to M or Tv, set a long shutter speed of >2 seconds, look into mirror box and press the shutter release.
If the shutter sticks, you'll see it.