A bit of a historical side trip...
rgrenaderphoto wrote:
... Ansel Adams's photographic gear:
"... Item: One Koniflex 35 millimeter camera... "
This is probably a typo. More likely, that was a "Contaflex" camera.
That same inventory (purportedly from 1957) was published on the George Eastman House museum website some time ago, during an Adams exhibit.
There was a "Koniflex" 35mm camera around close to that time... but only a couple of them were produced as prototypes. Instead, when put into production in 1960 the model was called the "Konica F", as seen here:
However, the Konica F wasn't produced until 1960, when it was the first camera to offer 1/2000 shutter speed and the first Japanese 35mm SLR to have a built-in, cross-coupled light meter. It also used a precursor to the Copal Square shutter that revolutionized 35mm SLRs in the 1960s, that's the basic design for the shutters used in most SLRs after that and even those found in most DSLRs today. The Konica F was also one of the first SLRs to have 1/125 flash sync (others only had 1/30 or 1/60 at that time... some still did even 15 years later). The Konica F was only produced for one year and in very small quantities (it's estimated that might be as few as 500 or 600, likely no more than 1000, even though serial numbers as high as 1500 are known).
In the mid-1950s there were also Koniflex and Koni-Teleflex twin lens reflex (TLR), medium format cameras, 6x6 cm format (
http://camerapedia.wikia.com/wiki/Koniflex).
And, there was a low cost, basic "Konilette 35" rangefinder (1959):
Very likely it's the similarity of the names of these other models that the Konica F name was used instead (not to mention Nikon had introduced their own "F" about a year earlier).
Close inspection and identification of the camera shown in the Ansel Adams film isn't easy, due to the image quality.... But it doesn't look like a Konica F or the Koniflex prototypes. Instead it's most likely a Zeiss Ikon "Contaflex" III (meterless) or IV (built-in, uncoupled meter), introduced in 1956. There also seem to be some accessory lenses with Adams' camera, which were first made available with these two models. (Prior Contaflex models only had a fixed, non-interchangeable lens.) These were actually "lens heads", rather than fully interchangeable lenses: 35mm, 50mm, 85mm and 105mm focal lengths, plus a macro. With this design, the lens heads all utilize the same rear elements with integral leaf shutter assembly. More info here:
http://pacificrimcamera.com/pp/zicontaflex1.htmPlus, one of Ansel Adams' very first cameras in the 1930s was a Zeiss.... So he already had some history using them.