Here are the simple steps to clean a 1951 Nikon S Rangefinder camera. I’ve read that the Nikon One and Nikon M are similar except for the Accessory shoe does not need to be removed on the S. Also the film advance knob does not need to be removed, but for cleaning, simple loosen the set screw and unscrew the knob (ccw)
This is my fix for the Industar-69 28mm 1:2.8 pancake lens famous infinity focus problem. I read several tutorials and pieced them together and came up with this non-destructive hack that still allows an infinity stop and close focus stop with only one minor setback of the aperture scale mark.
I used a digital camera for this fix which I suppose 90% of the uses for this lens is but, if you have an old 35mm film camera with the M39, Leica screw mount (with a hinged or removable back plate) you can use this lens too, just use a frosted glass plate of some kind, a removable SLR focus screen works good, or I’ve even used scotch tape pulled tight over the film guides to focus test lenses.
Giving my 1937 Zeiss Ikon Contax II as best of a CLA (clean, lube, adjust) as I could without dismantling the mechanism itself, I doused with lighter fluid twice, avoiding the shutter slats, tapes and glue, which is fairly easy as, everything is on one side. then I oiled a few choice spots, avoiding escapements.
With the help from forum friends, I fixed a problem with the Infinity on the RF, the previous hacker put the longer screws on the RF side of the front plate and they were preventing the plano-convex lens from traveling all the way to the side. Continue reading 1937 Zeiss Ikon ~ Contax II CLA→
The Leica lens, E. Leitz Wetzlar “Summar” 50mm (5cm) f/2 is notorious for having internal haze, clouding images sometimes giving a desired warmth called “Leica Glow”. Some desire it for using as a portrait lens or other such use as the effect is warranted.
Before I show you how I got my 1939 Leica Summar lens apart to clean the haze, I first cleaned some kind of dried gunk on the front element that resembled very bad cleaning marks.
I had seen it before on my former 1936 Summar and other people complaining about their’s calling it cleaning marks, so it must be a somewhat common thing. This time it was more crusty, uneven looking that led me to believe it wasn’t just the glass itself.
I’ve given my 1953 Leica IIIf “red dial” a CLA, or Clean Lube and Adjust and now I need to replace the half-mirror, or beamsplitter in the rangefinder. The beamsplitter gives the double image that moves back and forth as you focus the lens until the two images become one, then it is focused. On older cameras, the beamsplitter, which is a half-mirror, or partially silvered so it is transparent as well as reflective, looses some it’s reflectiveness and is hard to focus.
After completing the service, cleaning, repair, adjustment on the 1936 Leica IIIa, I shot a test roll to see if everything was working as it should. There are a lot of things that can be wrong on an 80 year old camera. A test roll can show if the film is advancing correctly, getting the proper space between images on the negative, shutter speeds are correct, the rangefinder and lens are in good sync so the images come out good and clear. etc…
The first test roll showed that the shutter was at the right speed but on the faster speeds, it was not adjusted correctly. The second or “closing” curtain was catching up with the first curtain part way across the film area.
Before giving my Leica IIIa a semi-complete CLA, I want to tackle the slow speeds being sluggish problem. Thanks to the Internet, I found a few sites that explained how truly easy it is. I mean, anybody can do this task and perhaps bring their 75-80 year old camera back to it’s former glory.
Two screws to get started is all it takes. The hardest part is putting it back in and that just takes some dexterity. This method is possible without a complete removal of the body shell as is needed for the newer IIIb. IIIc, IIIf, IIIg, but if you are planing a shell removal for whatever reason, CLA, investigation of a problem or the like, then by all means, wait until then, it would just be easier to put it back in but taking it out makes no difference.
Giving my 1936 Leica IIIa a CLA. It basically works fine, the shutter fires on all speeds but the slow speeds are sluggish. The curtains have previously been changed, maybe even twice in it’s 78 year history and look good. Overall there is brassing on the top and bottom plates but from normal heavy usage telling me it was well loved. From what I can see, the inside looks clean-ish, no major rust or anything like that.
Above, showing the external condition, dirt and a reddish oxidation to the Vulcanite (red circle) and dirty internal glass.
I recently acquired a 1957 Canon L2 from a fellow in Japan. As the listing stated, it is fully functional in every way. It is a joy to use. Smooth, well built, balanced. It’s only flaw is the same as every camera I’ve gotten, Hazy viewfinder. I did some research and found not much at all on this model but similar models share the same rangefinder set up, but the top plate is slightly different on them. The following is the method I used to get at the insides of the top plate.
start by removing the front RF collar. It unscrews counter clockwise (ccw) with just your fingers After removing the collar, remove the lens, it should be tight but it just slips out and under that is a ring that holds the lens. A spanner wrench is required to remove it. The lens has spanner slots too, this can be aligned with the ring underneath and both unscrewed at the same time if you have the right tool. Also the lens spanner slots makes it possible to realign the vertical RF image by rotating it until the image is correct.
After film testing my Tower 43, I was getting pictures back from the Lab that the frames were only half exposed and with an obvious hunk of broken film wedged in the area between the image aperture and the pressure plate. It was possible that the film piece was fouling the shutter curtains, so after removing the film piece I tried another roll but got the same results, just not as bad.