Hi I'm a little collector myself and just got original SMENA 5 in my hands it was dirty so I decided to take it apart. Although when I got into the lens, I shamefully need to agree that I can't put it back together. I'm pretty sure all parts are in the right place, but it could be positions of some of the springs that are leaning the lead (with shutter speed on). Is here anyone that could help me with putting it back together?