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2. Manual focus - Wikipedia

   en.wikipedia.org/wiki/Manual_focus

   Focusing screens, in their simplest form, consist of a matte glass or plastic surface on which the image can be focused. Other devices, such as split-image prisms or microprisms, can help determine focus. Manual focus lenses can also be used on modern digital cameras with an adapter. Zeiss, Leica and Cosina Voigtländer are among current ...

3. Canon EF-M camera - Wikipedia

   en.wikipedia.org/wiki/Canon_EF-M_camera

   The Canon EF-M was a manual-focus 35mm film, SLR camera which used the Canon EF lens mount. It was introduced in 1991 for export to the non-Japanese market, and was the only manual focus camera in the EF line. It was not sold as part of the EOS range; the camera's official name was Canon EF-M rather than Canon EOS EF-M.

4. Olympus OM-4 - Wikipedia

   en.wikipedia.org/wiki/Olympus_OM-4

   Frontal view of an OM-4 camera body, without lens attached Top view of an OM-4 camera body, showing controls. The OM-4 used a horizontal cloth focal plane shutter with a manual speed range of one second - 1/2000 second (up to 240 seconds was possible in automatic mode), plus bulb and flash X-sync of 1/60 second. Unlike most SLRs of the era, the ...

5. List of Mamiya products - Wikipedia

   en.wikipedia.org/wiki/List_of_Mamiya_products

   Mamiya Mammy (1953) — zone focus system; Mamiya Speed Shot Special (a.k.a. Mamiya Pistol Camera) (c. 1954) — half-frame; rare police model; not sold to public; Mamiya Automatic 35 EEF (Tower 39, Tower 41) (1961) — zone focus system; Mamiya EE Merit (Honeywell Electric Eye) (1962) — zone focus system; Mamiya 135 EF (1979) — zone focus ...

6. Pentax K1000 - Wikipedia

   en.wikipedia.org/wiki/Pentax_K1000

   The K1000 is an almost-all metal, mechanically (springs, gears, levers) controlled, manual-focus SLR with manual-exposure control. [4] It is completely operable without batteries. [5] Batteries are only required (one A76 or S76, or LR44 or SR44, silver oxide 357 or 303) for the light metering information in the viewfinder.

7. Nikon EM - Wikipedia

   en.wikipedia.org/wiki/Nikon_EM

   It was an electromechanically-controlled, manual-focus camera powered by button batteries. The EM featured a lightweight, compact copper-aluminum alloy body and fiberglass-reinforced polycarbonate plastic top and bottom covers, plus aperture priority semiautomatic exposure control governed by a built-in 60/40 percent centerweighted, silicon ...