It’s a cold and foggy morning, not nice mist but thick fog. I took a couple of pictures for your edification or perhaps not.
CRANE FLY IN WEB.
I am waiting for the fog to clear and then I’ll go out for a proper walk. I have too many things on the go so will get a few off the list. I’ll get the video finished that has to go onto a DVD in PAL. I’ll do some more Blendering as the firework video has taken a back seat, when they are done I’ll have a serious think about making a camera shutter speed analyser. A week ago I was offered a pair of Kiev 4 rangefinders one with a lens and one without; they both have broken shutter tapes. I can get silk tape to replace them and it doesn’t look a big job…….be one of those jobs that when you have done it once thereafter it should take an hour or two. These shutters are a metal roller screen with a gap in….Like a roller shutter door but smaller with a few slats missing…..The tape appears to hold them together and also re-cock the shutter. Not like a DSLR where there are two solid doors on levers. Not like the Bronica where there is a Seiko leaf shutter, I won’t be attempting to repair one of the latter anytime soon or ever given my hamfistedness.
The idea is to shine a laser light through the camera and then have a photo transistor behind a pin hole and couple the transistor to an oscilloscope. I should get a constant flat line until the shutter opens then a dip or peak then flat whilst the shutter is open then back to constant. It ought to be easy to read the shutter speed. The problem is the oscilloscope bit. They are very expensive but I found a Chinese kit for under twenty pounds. I am not sure of my ability to build it and make it work so the alternative is a small hand held unit for £50.00p I will have to check I can read the screen….I am also trying to source some Kevlar ribbon 3mm x 0.3mm, a metre should see me out even if I find a Contax or two with the same problem. Kevlar or a Carbon/Kevlar composite should last forever.
That’s all for today.