The Olympus Pen F, Pen FT and Pen FV are very similar half-frame 35 mm single-lens reflex (SLR) cameras with interchangeable lenses produced by Olympus of Japan between 1963-1966 (Pen F), 1966-1972 (Pen FT) and 1967-1970 (Pen FV).
The original Pen F has a double-stroke film advance and a distinctive logo rendered in a gothic font. The later Pen FT added a single-stroke film advance, and an uncoupled, integrated light meter, which uses a system of exposure numbers rather than f-stops. The exposure numbers were added to the aperture rings of later Pen F lenses; the rings could be pulled out and rotated to show conventional f-stops instead. A side-effect of the FT's light meter was a dimmer viewfinder. The Pen FV was essentially a Pen FT with the light meter deleted and the F's brighter viewfinder reinstated.
Half frame means that the camera uses an 18×24 mm vertical (portrait) format, producing twice the pictures on a roll of 135 film as the regular 36×24 mm format. The smaller image format also allows for a smaller camera and lenses, making the Pen F system one of the smallest SLR systems ever made; the Pentax Auto 110 was smaller, but with a much more limited range of lenses and accessories, and smaller 110 film.
These cameras are somewhat exceptional since they used a rotary focal-plane shutter, rather than the two-curtain focal-plane shutter commonly used in other SLRs at that time. Since this one-piece shutter opens fully before it starts to close, it can synchronize to electronic flash at all shutter speeds.
Pen-F series cameras are occasionally modified to mount standard motion picture camera lenses for use as film test cameras with 35mm motion picture films. The Pen-F frame size is close to the 35mm motion picture Super 35 frame.
Lens manufactured for the Olympus Pen F System
|Angle of view||Gr.-El.||TTL-No.||F/stop range||Min. Focus||Filter||Weight|
|Wide||G.Zuiko Auto-W||20mm F3.5||28mm||73°||6-7||0-4||3.5–16||0.2m||43mm||145g|
|E.Zuiko Auto-W||25mm F4||35mm||62°||5-5||0-4||4–16||0.25m||43mm||120g|
|G.Zuiko Auto-W||25mm F2.8||35mm||62°||5-7||0-5||2.8–16||0.25m||43mm||160g|
|Standard||F.Zuiko Auto-S||38mm F1.8||55mm||43°||5-6||0-6||1.8–16||0.35m||43mm||135g|
|G.Zuiko Auto-S||40mm F1.4||58mm||41°||6-7||0-6||1.4–16||0.35m||43mm||165g|
|H.Zuiko Auto-S||42mm F1.2||60mm||39°||6-8||0-6||1.2–16||0.35m||49mm||255g|
|Telephoto||G.Zuiko Auto-T||60mm F1.5||85mm||28°||5-7||0-6||1.5–16||0.8m||49mm||270g|
|F.Zuiko Auto-T||70mm F2||100mm||24°||5-6||0.5-7||2–22||0.8m||43mm||230g|
|E.Zuiko Auto-T||100mm F3.5||140mm||17°||4-5||1-6||3.5–22||1.5m||43mm||250g|
|E.Zuiko Auto-T||150mm F4||210mm||12°||4-5||1-5||4–22||1.7m||49mm||380g|
|Super Telephoto||E.Zuiko T||250mm F5||360mm||7°||3-5||1-6||5–32*M||3.5m||58mm||800g|
|E.Zuiko T||400mm F6.3||570mm||4°||4-5||1-5||6.3–32*M||5m||72mm||1750g|
|Zoom||Zuiko Auto-Zoom||50–90mm F3.5||70–130mm||34–19°||8-10||0.5-4||3.5–16||1.5m||49mm||420g|
|Zuiko Zoom||100–200mm F5||140–280mm||17-9°||9-12||1-6||5–32*M||1.7m||49mm||700g|
|Others||E.Zuiko Auto-S||38mm F2.8||55mm||43°||4-5||0-5||2.8–16||0.8m||43mm||70g|
|D.Zuiko Auto-S||38mm F2.8||55mm||43°||3-4||0-5||2.8–16||0.35m||43mm||125g|
|E.Zuiko Auto-Macro||38mm F3.5||55mm||43°||4-5||0-4||3.5–16||0.156m||43mm||200g|
- *M=manual diaphragm
- Nakamura, Karen (2005). Classic cameras: Olympus Pen F. PhotoEthnography.com. Retrieved on November 13, 2005.
- Gandy, Stephen (2003). Olympus Pen F, FT, FV: Largest Half-frame System. CameraQuest.com. Retrieved on November 13, 2005.
- McGloin, Joe (2004). Olympus Pen F Cameras. The Sub Club. Retrieved on November 13, 2005.