Adjusting a Gaoersi lenscone

Discussion in 'Large Format Cameras and Accessories' started by Richard Man, Apr 26, 2013.

  1. Richard Man

    Richard Man Member

    Messages:
    401
    Joined:
    Sep 24, 2005
    Shooter:
    Multi Format
    Please pardon my ignorance with this subject. LF is new to me and I just got a Gaoersi 4x5 "P&S" to complement my Chamonix 4x5 F1 (for long and night exposure). Anyway, I am trying to follow the instructions here:
    http://bhcamera.us/install-lens.php

    I am not sure exactly what I did, but currently the focus ring can be "taken off" the helical, i.e. it can rotate quite a bit without actually moving the helical focus. The infinity is also about 250 degrees away from the focus mark when the cone is at infinity.

    It's night now, and I can't check whether the infinity is correct now, but I needed to do something to move the infinity a wee bit. In the middle of the page referenced, supposedly one can loosen the retenting ring inside the lenscone by using a pair of scissor, but I cannot get it to budge.

    Appreciate any help you can give. Thanks.