On 24 Aug 2004 at 0:38, Alan Chan wrote:

> If I guess correctly, you need to remove the front filter retaining ring, 
> then you can access to 3 screws which holds the focus mechanism in position.
> Somehow they have been shifted and needs to be adjusted (mounted on camera). Low
> strength threadlock has to be applied afterward. You should not need to actually
> get inside the helicoid.

I suspect this is correct, it's likely that the fine threaded component of the 
focus assembly has become misaligned with the helicoids. This can be a real 
pain to set, if you don't have a collimated light source you need to experiment 
to set the infinity focus point unfortunately.


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

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