On 20/5/04, VARIOUS PDML TINKERERS, discombobulated, offered: >The three screws system is common to "A" lenses but I've not seen a "K" >lens that it applies to. > >The best bet is to take the whole thing apart. :)
Thanks guys. I've sorted it. Basically, twirling the front element does not remove it. I suspect it's trying to disengage from the next group or something, but can't because the groups are all still in situ in the lens body. I went in through the back end, which was pretty easy. The hard part was putting it back together :-( The three screw are there, but they are below the level of the focussing ring - so even at closest focus, they don't 'surface' from behind the focus ring. Loosening the screws that hold the 'guides' in place inside - they keep the inner barrel laterally stationary while focussing takes place, means that on focussing closer than normally permitted, the screws become visible from behind the focus ring. In fact I had three screw recesses but only 2 screws! Nothing rattling around inside so it must have been left out on a previous strip down (not by me I hasten to add!) - fortunately I have a box of spare screws and found a match. This gave me a good opportunity to clean off some of the internal elements as well - removing some dust in the process. The spring that keeps tension on the aperture blades was weak - I re-sprung it and after a few goes found the sweet spot. I'm just waiting for the EOS - K adapter plate to dry - I've painted the visible edges black from silver for a nicer match when mated to the body. Should look rather good. I've just saved myself a few quid doing that - took about 2.5 hours so not bad. Thanks for the thoughts from those who responded. Best, Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=====| www.macads.co.uk/snaps _____________________________
