AMPRO EIGHT MODELS 340, 344 AND 350
Ampro Corporation, 2835 N. Western Avenue,
Chicago 18, Illinois December,
1950 - 1955
The Ampro
Corporation is as well known for their reel-to-reel tape recorders, as they
are for their amateur motion picture equipment.
Ampro began with 16mm projectors, bringing out their
Ampro Precision Projector by mid-1930. With Eastman Kodak's introduction of the
8mm format in 1932, Ampro would subsequently enter this new dimension of the
amateur market. But, it appears to have been another 18 years before they would
offer an 8mm camera. Although its actual
date of introduction is presently undetermined, by late 1950, the Ampro Eight 8mm movie camera was
available in a single-lens version designated the Model 340 and a two-lens turret version, the Model 350.
The camera was beautifully crafted from stainless steel with
leatherette panels, and utilized a pre-loaded magazine (or cartridge) for speed
and convenience. Six speeds were available
and the camera incorporated a 10-ft watch indicator to let the operator know
that the spring was winding down. One of the camera's unique features was the "Accurator", an easily
adjustable view finder that depending on the focal length of the lens being
used, scaled the field of view to represent what was actually being taken. This
was the camera's featured selling point, over conventional finders found on
competitor's cameras that never really represented the actual image taken.
Another unique feature was the film chamber's door lock,
incorporated on the door's hinge side. Rotating the lever 90 degrees permitted
the door to be opened. As the door was manually held back in the closed
position, the lever was then returned to the locked position, securing the
door.
The inside of the doors on both the Model 340 and Model
350 shown here, are stamped "Pat. Apld. For". At least eight patents have been found that
are believed to apply to the Model 340/Model 350, as these appear to be the
only camera models Ampro ever manufactured.
All of the patents were granted to Irving Cisski, with one of the
patents being shared with Abram Shapiro, Ampro's lead engineer. Pending more information, Irving Cisski is
also believed to have been a design engineer with the company. All of these
patents, with one exception, were assigned to the Ampro Corporation. Advertisements touted the
"Accurator" as a patented feature. Patent No. 2,542,939 was granted February 20, 1951 to Irving Cisski
for a "View Finder Masking Device" which covers this design. The
patent was assigned to General Precision Laboratory Incorporated, which was
Ampro's parent company.
The
"Accurator" Finder
According to a 1951 magazine advertisement, the Models
340 and 350 were equipped with Ampro-Wollensak f2.5
coated lenses and retailed for $149.50 and $169.50 respectively. A December,
1950 ad from Popular Photography
magazine, and the Directory Issue of
Popular Photography, May, 1951, lists the Model 340 the Model 350 as
retailing for $139.50 and $159.50, respectively. Ampro also offered a retrofit
kit, to easily convert the Model 340 from a single-lens to a two-lens
turret.
These prices represented somewhere in the realm of $1,500
to $1,700 in 2022 dollars. Granted, like many other products of the time, movie
cameras were sold at a discount off the retail. Despite this, at prices
exceeding a thousand dollars in today's valuation, these cameras were no small
piece of change for the average family.
The Model 340
and Model 350 examples featured
here, are equipped with Wollensak-Ampro f2.5 13mm Cine-Raptar
standard lens. Having a D-mount, any number of standard or telephoto lenses
could have been used, such as the Kinotel Anastigmat 8mm Movie 1-1/2" f3.5
lens (chrome) and the Sun-Tak Wide Angle 6.5 mm f1.9 lens (black) shown here in
some of the photos.
The Model 344
is somewhat of a mystery, as no references have been found to it in
advertisements, buyer's guides or factory literature...yet here it is, clearly
labeled "Model three forty four". This example is equipped with a Wollensak-Ampro f1.9 13mm Cine-Raptar
lens. The f1.9 13mm was an upgrade from the f2.5 on the Model 350, available by
May, 1951 (and through 1955), but appears to have never been offered as an
option on the Model 340.
Appearing identical to the Model 340, possibly the Model
344 designation meant the camera was intended for export, or because it had the
faster f1.9 lens. I'd be interested to hear from others with any information or
opinions on the Model 344. The Ampro Eight Model 340
and 350 are seen very infrequently when compared to other U.S. made 8mm's, and
are harder to locate in very nice condition. Given its obscurity and this being
the only example I've encountered, in the United States the Ampro Eight Model 344 will be the most difficult of all three known
models to locate.
Ampro
Eight Model Three Forty Four
Ampro wasn't the only company offering a well made 8mm,
and quality products were available from Bell & Howell, Wollensak, Revere
and DeJur-Amsco to name but a few. Examples from all of these manufacturers can
readily be found today, but the Ampro Eight is quite
scarce in comparison. So far, only a few advertisements have been found from
the early 1950's, beginning December, 1950. However, both the 340 and 350
models were still being offered in Popular Photography's Directory and Buying Guide, 1955 Edition, and by 1956 they
disappeared from this annual publication.
The Ampro Eight lasted
for about five years. Although priced at the higher end alongside cameras from
other makers, it apparently proved less popular as relatively few examples are
seen today.
For an outstanding history of the Ampro Corporation and
its origins, please follow the link below to the Made in Chicago Museum. This
is a great website featuring many things manufactured in Chicago, a city that
was literally the epicenter for motion picture equipment development as the
film industry surged and amateur home movies emerged:
https://www.madeinchicagomuseum.com/single-post/ampro-corp/