On 20 Mar 2006 at 20:53, Jostein wrote: > Gang, > > Just an observation from prolonged camera exposure to temperatures > around -15°C, in windy conditions. The clutch focus mechanism becomes > too tight, so that the AF motor in the *istD hardly manage to drive > it. Just to check that it was not the batteries acting up, I changed > to FA*400/5.6 and Sigma EX 70-200/2.8. The AF responded swiftly and > without problems with both lenses. Considering that I've never had to > touch up the focus manually while working with AF, the clutch-focus > mechanism is suddenly a feature I wish I didn't have.
Very interesting, not that I expect that I'll ever have to endure such lack of heat :-) Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
