Hello Bernd! Now that makes perfect sense. I think you`re right that the rear element floats, because my K-mount specimen had a loose filter ring on it, Dean (my repairman) took it apart and told me to hold the front element group while he tightened some screws, and I don`t remember him fighting any springs in the process. The nice thing about this list-you`ll get to the bottom of it, no matter what. Steve Larson Redondo Beach, California ----- Original Message ----- From: "HUDERER Bernd" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, June 12, 2002 12:00 AM Subject: RE: Vivitar Series 1 28/1.9 Lens Focusing
> Hi Steve and all Vivitar users, > > yes it's normal and due to the floating element. IIRC, the rear element is > the floating one. If you turn the focus ring, you can see that from a > specific point, the rear element is moving ( or was it the front element ?). > As it gets hold in normal position by springs, you have to apply the extra > force from the specific point of focussing to stretch this springs. > As I openend some time ago my sample, I know a little bit more than one can > see from the outside. > > Bernd H. > > > Steve Larson wrote: > > > Normal. Both of mine do this, and others I`ve handled also do it. > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
