TLR Mirror Replacement - A Suggestion

Discussion in 'Classic Manual Cameras' started by John Seaman, Aug 25, 2018.

  1. I've acquired a very beaten up Rolleicord 2 along with a much nicer Rolleiflex Original which I'm hoping to try out soon. The Rolleicord mirror was very poor, and was clearly a replacement as it was silvered on the rear surface rather than the front, so I decided to renew it. The only time I ever tried to get front silvered glass from an old Polaroid camera, as is often suggested, ended in frustration. I couldn't even get the mirror out in one piece, let alone cut it to shape.

    I began to wonder if a better alternative might be available nowadays. A local plastics supplier showed me some Silver Mirror HIPS Sheet (HIPS = High Impact Polystryene Sheet) which is silvered on the front, but they only had it in large expensive sizes. An internet search revealed a source of A4 size 1mm thick sheets, and I bought two of these for a very few pounds.

    MirrorA.jpg

    Upon arrival I was disappointed to find the 1mm material probably too flexible for what I had in mind, and also carrying a slight natural curl. But then I had the idea of cutting out two pieces and gluing them together back-to back, both stiffening them and hopefully, cancelling out the curl.

    The material has a protective film on the silvered side, and is easy to cut to size with a craft knife. I cut out two pieces the same size as the old mirror, stuck them together with a thin layer of impact glue, applying pressure with a heavy book until it set. Then I peeled off the protective film to reveal the shiny surface.

    MirrorB.jpg

    The resulting 2mm thick mirror was just about the right thickness, but it still didn't look optically flat enough. However I installed it in the camera, and refitted the hood and ground glass screen – in use the slight unevenness did not seem apparent, perhaps because of the short distances involved. It seemed to sit more evenly without the springy "frog" which normally sits behind these mirrors.

    MirrorC.jpg

    It remains to be seen how well it performs in practice. There are a few more issues to resolve with the camera first.
     
    stuart_pratt likes this.
  2. Wow... Great result I think. I found a "mylar" material.. I believed I posted it here I believe in a reply, although I never tried it. This was highly reflective. It was to be used with pouring wine to stop drips. This looks even better. Keep me posted!! I have a the first Rolleicord Art Deco in pieces for over 10 years now.. waiting for a mirror... maybe my ship has come in. To be truthful... I received two mirrors that may be close, but I never got around to trying them. I broke three of the four screws that hold the hood on. so although I've drilled out the screws very carefully, I now need these long brass screws.. I need to measure the one and find three replacements. tic tic tic ...another 10 years passed...
     
  3. Keep us informed. I have some old 6cm cameras with oxidized mirrors and would love to re-animate them!

    Thanks!
     
  4. m42dave

    m42dave Dave E.

    This mirror from a reflex Polaroid would probably work fine too. You can find them at thrift stores for a few dollars.

    Polariod Mirror.JPG
     
    Last edited: Aug 25, 2018
  5. You can get front surface mirrors from kaleidoscope making supply shops. They're available in glass and plastic substrate. Also try science and telescope making supply shops. Here one source:

    Front Surface & Kaleidoscope Mirrors

    These are 1.25mm thick. If you have several TLRs and SLRs that need new mirrors, you can buy a sheet and cut your own. You'll probably want to get a carbide cutter if you're cutting glass substrate mirrors.
     
  6. I've had some time now to try out the plastic mirror, despite the problems with the Rolleicord which include a slightly cloudy viewing lens, and a missing focus magnifier. I have to say that glass is king. The view on the GG screen looks bright enough, but focusing is vague and unsatisfactory. I don't think the surface is optically quite up to it. Heigh-ho.
     
  7. I guess you have to ask your self ... is the finder brighter and easier to use than with the oxidized silver that was in there before... . Ok maybe your material isn't optimal.... but heigh-ho.. it's still a step up!
    I recall a few years back where someone would cut custom mirrors for any size you like... apparently he advertised same on ebay. I seem to recall the gentleman was in Atlanta Ga.. maybe someplace else in the south. I'll look into it!
    While the glass is probably deserving of a better solution... your working camera is still a giant step forward.

    I found the link Fleetwood, North Carolina ( not too far south )

    Custom Cut TLR replacement mirrors | eBay
     
  8. Thanks for the info Chuck. I've decided to treat it a new mirror from him.
     
  9. Well, I received the new glass front-silvered mirror yesterday from the seller suggested by Chuck - remarkably quickly, as I'm in the UK. Having just installed it in the camera, focusing is now reasonably "snappy" and normal for a TLR,. So the plastic mirror was not "up to snuff".

    The non-Fresnel ground glass screen doesn't make for the brightest of views, but it will do. The focus agrees with the scale pretty well.
     
  10. That'S a blessing that the focus agrees with the glass. There'S the old saying about pigs and lipstick, but a Rolleicord'/flex ain't no pig.
    Our own Rick Oleson offers replacement fresnel screens ..for a reasonable price. If this is a keeper it's probably worth the investment, if good enough is Ok then in the fabled words of Paul McCartney Let it Be.

    Custom Fitted Focusing Screens
     

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