OddCameras.com
Olympus Pen FT
The
Oympus Pen series is a brand name for half frame compact cameras from
1959 until the early 1980s by the Olympus Co, Tokio, Japan, an old
camera company. The original Pen was introduced in 1959. It was
designed by Yoshihisa Maitani, and was the first half-frame camera
produced in Japan. It was one of the smallest cameras to use regular
35mm film. A series of Pen models followed, some easier to use with
automatic exposure.
The Pen F is a half frame SLR camera, introduced in 1963. It is also designed by Yoshihisa Maitani
(who later created the OM-1 and the XA). The original model has a big
golden gothic letter F engraved on the right on the front plate. It's a
quite compact camera with an unusual viewfinder with no prism. The
reflex mirror flips sideways, which makes it more compact.. The Pen F
has a bayonet mount for interchangeable lenses. The focal plane shutter
is unusual as well, it's a rotating metal disc, synchronised at all
speeds.
The Pen FT with a built-in, non-coupled TTL exposure meter replaced
the Pen F in 1966. The finder image is slightly dimmer, since some
light is directed to the meter. The Pen FT also introduced a
single-stroke advance and a self-timer. It's the model presented here.
The Pen FV was launched in 1967. It's a Pen FT without the light meter,
but with the single stroke lever and the self-timer. It is the most
rare of the three models. Unfortunately in 2016 Olympus introduced a
digital Micro Four Thirds camera with the iconic Pen F name which
leads to quite some confusion.
The main features are:
Shutter: rotary, metal, speeds: 1 - 1/500s and B
Viewfinder: Porroprism with microprism and fresnel
Light-meter: TTL, non-coupled
Focus: manual
Film speeds: 25-400 ISO
TTL meter, non coupled, PC socket (fully synchronized), mechanical self-timer, tripod mount
Some photos:

A nice set of lenses and accessories.

A
nice and stylish little camera. On the bottom of the lens barrel: up
left left lens release, up right depth of the field test (closes the
aperture).

The iconic gothic letter F on the lens cap.

Camera
front. A 25mm lens, a good choice for the half frame format which gives
a moderate wide angle. Top right: self timer. To the left: speed
setting.

ISO setting between B and 1s of the speed setting. To change, lift the upper part and turn.

Lens front.

Camera
back. Viewer and advance lever. The camera has no accessory shoe. There
was an etxra shoe to be sqeezed tightly onto the plastic viewer frame which
often damaged it.

Camera
bottom. Battery
compartment, takes a PX675 mercury battery. There are replacements
available. And there are loads of discussions about it. Rewind release, Tripod socket. On the lens barrel: EV setting numbers.

Seen
from above. Rewind, shutter release and film counter,

Camera mount.

Camera with the 38mm pancake lens, not so common and quite expensive today. It only sticks out 18mm.

Lens front.

Seen from above. EV values.

Seen from below. Aperture values.

The lens is really small and weighs only 70gr.

Camera with 100mm tele lens. The equivalent in full format is 143mm.

Lens front.

Fully extended, 1.5m. On the small camera it seems big and heavy, it weighs 250gr.

Camera with 50-90mm zoom lens and shade,

Shade deposed. It's bigger and heavier than the 100mm, it weighs 420 gr and has 10 lenses in 8 groups.

Lens front.

And not to forget: the film plane.
This is regarded as the summum of the half frame cameras although
launched about 60 years ago. It is a very nice and very small SLR
camera with very good lenses and it
still works nicely after so many years. Seen today's film prices, half
frames are sought after. This led to high prices for this specific
model.
Handling is easy and logic. Once you get used to the meter system, it's
a good feature in my opinion. Even if the screen is slightly dimmer,
it's not true that half of the light goes to the meter system as some
websites claim. There are 2 ways to use the meter. The system is speed
priority, you set the speed first and it's open aperture focussing and
measuring. With Olympus Pen lenses you watch the needle, it should be
between 0 and 5, otherwise change the speed. Then set the number you
read on the meter to the EV scale of the lens. Fire and done.
With non-Olympus lenses focus at aperture full open, then close the
aperture until the needle is between 0 and 1 (0 for the more luminous
lenses). You can do the same with Olympus lenses without taking the
camera off your eye. Just push the depth of the field control, it
closes the aperture and the needle should go up towards 0.
There is a lot of discussion about the battery. I do not use slide film
except for stereo cameras. Modern negative film is easy within 1 or 2
apertures. So no problem with a new U 675 battery. But I have ordered
an adapter to 1.3 V and I will report back later.
You can find an accessory page here.
In any case: it's a cute little wonder. I'm very fond of it.