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Ihagee Photoklapp Patent Duplex 710 (6.5x9)
The Ihagee Photoklapp Patent Duplex cameras were produced between 1914 and
1939 by IHAGEE, Dresden. They were made in 4 different formats, 6.5x9 (710),
9x12 (720), 10x15 (730) and 13x18 (740). The 710 (6.5x9) was added in 1925 to the series. The long name refers to the features of the camera. Photoklapp refers to a folding drop bed, Patent refers to the automatic infinity stop which was patented by them and Duplex refers to the double extension.
The Patent Duplex are mid to top level cameras with luminous lenses for the top models and double
extension. This is a 6.5x9 710 model, it's
in very nice shape.
Lens: Zeiss Tessar 1:4.5 10.5cm, F4.5-36
Shutter:
Compur rim set 1-1/250 B T (working)
Weight: 771gr.
Size: 115x93x50
Some photos:
Camera closed. No tripod socket on the bed, one on the bottom of the
housing.
Camera back.
Seen from the right. Brilliant finder with spirit level, can be switched
to landscape format. The distance scale on the bed has a stop which is hit extending the camera. As soon as you pull out the focussing wheel on the left, it moves out of the way, for closer focussing. This is the patent the camera name refers to. It's handy, no tab to press for unblocking.
On the left side there is a tripod socket for landscape
format on the housing and an early acessory shoe.
Wire frame and viewer extended.
Front.
Lens and shutter. According to the lens number the camera dates from late 1930. The change from dial set shutters to rim set shutters happened the year before
Rise/fall and shift movements are possible. Risen.
Shifted.
Focussed to ~ 60cm.
The camera has double extension. On this camera the "rest" part of the rails moves out as well.
Back, hood open.
Ground glass deposed.
The
camera opens via a button on the top. Lower the bed
until it clicks into place. Squeeze the tabs on the front standard and
extend, there is an automatic stop. You can either use the finder and
the distance indications or the ground glass to focus. Set shutter
speed and aperture, cock the shutter. Put a film holder into place,
lift the dark slide and take your photo. Do not forget to put the dark
slide again. To shut the camera, push the front standard over the end
of the bed into the housing, press the hinges of the bed and it will
close.
6.5x9 is no longer made on a regular basis. So you would have to build
a stock whenever it is available. Think of searching for the inch
equivalent, 2.25x3.25. Or you get
yourself a 6x9 roll film holder. Rada and Rollex made them, some are
branded Plaubel. They tend to be on the expensive side and add size to
the camera. Browse old camera part sales. But maybe an old roll film
folder would be a better choice.
These cameras are
about a century old. The lenses are uncoated and the shutters are simple.
Nevertheless they are still nice cameras. Most of these
cameras are very cheap. They are
simple to use and can give a lot of fun.