Hi, I'm posting for my first time with a request for some helpful advice please. I got out my S2 Nikon, equipped with SC 1.4 5cm Nippon Kogaku and tried shooting with it for the first time in many years. Four or so frames into the film I noticed a reluctance of the aperture ring to move smoothly ; thinking this stiffness was due to not having been used for a while I attempted to ''exercise'' it and , horrible to say, I've ended up with a bunch of scrunched-up iris blades visible through the front of the (otherwise perfect) lens. Can anyone recommend a repairer to sort out this mess ? Such an unexpected disaster to occur to my highly valued Nikon RF kit... I'm in the UK .