User manual OLYMPUS OM-1

[. . . ] With its many system components, the OM-1 permits an infinite range of photographic capabilities . . . To get the optimum results from your OM-1, carefully study this Owner's Manual. It is well worth your time, and will provide a sound basis for years of fine OM-1 photographs. 1 DESCRIPTION OF CONTROLS Film Take-Up Spool Viewfinder Eyepiece Frame Battery Check Lamp (P. 9, P 44) (P. 58) Refer to pages in parentheses for detailed explanations of each part. (P. [. . . ] When using flash that is not connected to the accessory shoe, remove or cover the shoe. page 21. ) 46 THE MOST IMPORTANT FEATURE OF THE OM-1-TTL DIRECT(OTF)LIGHT MEASURING Diagram of light path in conventional SLRs Before shutter release Light Sensor Position Diagram of light path in OM-1 Before shutter release Stray Light The instant the shutter has been released (A memory device controls the shutter speed, based on the light reading taken before actual exposure. ) The instant the shutter has been released Light Sensor Position In the automatic mode, the OM-1 measures the subject brightness very differently from any other automatic camera -- faster and with much more accuracy. With the OM-1, light entering the lens is measured directly at the film plane by the sen47 sors at the precise moment the film is being exposed. When sufficient light has reached the film, the electronic brain senses the information and instantly closes the shutter. Exposure range of OM-1 in automatic mode Exposure range of conventional Shutter Speed at F1. 2 AE SLRs Advantageous Points of Through-The-Lens Direct (off-the-film) Light Measuring Method 1. The OM-1 sensors respond instantly to changes in the light during exposure and feed back the be automatically exposed for up to 120 seconds at F1. 2. The Method excludes all possibilities of stray light leaking through the camera eyepiece and affecting the exposure reading. The Method gives correct exposures even when the clear-field type focusing screen is in use. information to the shutter control mechanism. 2. The sensors measure flash intensity as it builds up and cut off its light at the source when the correct exposure level is reached. Even during 5-frame-per-second motor drive operation, this Method insures correct ex- posure for each frame individually. The Method operates accurately in far dimmer light than other systems. ASA 100 film can 48 OM SYSTEM The OM System is comprehensively arrayed to meet an ever-expanding universe of photographic conditions for any subjects from the stars to microorganisms. A full-scale system camera is distinguishable by some of the prerequisite characteristics as broadly mentioned below: · Interchangeability of focusing screens. 0 ) ZUIKO MC 1:1 MACRO 80mm F4 ZUIKO MC MACRO 135mm F4. 5 9° at highest mag. 18° W/Auto Bellows & PM-MT ob W/Auto Bellows or 65-116 W/Auto Bellows or 65-116 max. 18 × 12mm 72×48mm 320g(11. 3) MC stands for multicoating. Automatic correction design against close distance aberrations. 53 LENGTH MAX. DIAMETER HOOD ------ ------ FILTER Built-in Built-in 72mm 55mm 49mm 55mm 49mm 49mm Compatible : The meter needle indiFOR SHIFT LENS FOR TELEPHOTOGRAPHY & ASTROPHOTOGRAPHY FOR MACROPHOTOGRAPHY & PHOTOMICROGAPHY FOR CLOSE-UP & MACROPHOTOGRAPHY FOR ENDOSCOPIC PHOTOGRAPHY 82mm 42mm 43. 5mm 102mm 59mm 62mm 60mm 59mm 60mm 59mm 60mm cates correct light readings. In the combination 49 72mm Screw-in 55mm Slide-on 49mm Screw-in 55mm Screw-in 49mm Screw-in 31mm 48mm marked with *, microprism, split-prism and edges of the finder will darken. Compatible: The meter in the OM-1 and OM-1 (on MANUAL) cannot be used. On AUTO, the OM-1 makes correct exposures, but the meter needle does not indicate correct 31mm 43mm 31mm 42mm 33mm 58mm 47mm 39mm 59mm 60mm 59mm 49mm Screw-in 49mm Screw-in 55mm Screw-in 51mm Slide-on 49mm Slide-on 57mm Slide-on 51mm Slide-on 68mm 65mm 60mm 59mm 60mm 67mm 49mm 55mm 49mm 49mm 55mm 49mm 49mm 49mm shutter speeds. 31mm 40mm 51mm Slide-on ---- 60mm Slide-on Built-in Built-in 49mm Screw-in 49mm Screw-in Built-in Built-in Built-in Built in Built-in Built-in Built-in Built-in BuiIt-in 74mm 196mm 48mm 48mm 80mm 73mm 124mrn 127mm 105mm 63mm 70mm 60mm 50mm 55mm 49mm 55mm 49mm 49mm 55mm 49mm 72mm 55mm 49mm 61mm 60mm 80mm 67mm 62mm 181mm 255mm 377mm 662mm 20mm 28mm 33mm 47mm 80mm 80mm 110mm 110mm 32mm 43mm 72mm 72mm 100mm 100mm 21mm Slide-on 32mm Slide-on 49mm 55mm ---- ---- ---- 57mm Slide-on 59mm 60mm (Specifications subject to change without notice. ) 54 INTERCHANGEABLE LENS GROUP UNITS Lens Hoods Lens hoods protect against extraneous light striking the lens and causing unwanted glare. Hoods for standard lenses are cover types and can be reversed to provide easy storage even when the camera is in the case. Five lens hoods are optionally available (see TABLE OF INTERCHANGEABLE LENSES on pp. 53-54). Camera Body Cap Rear Lens Cap Front Lens Caps (49mm, 55mm, 72mm 100mm in diameter) and Filters Filters are essential to the effective rendition of photographic subjects. In controlling contrast and eliminating unwanted haze in black and white photography, the use of the correct filter often means the difference between a good photograph and a great one. In color, where the balancing of the light with the film emulsion is absolutely necessary for cor- Adapter Ring 49 72mm A lens hood/filter mount for the 18mm F3. 5 lens. rect color, conversion and light balancing filters are the only ef- fective way of achieving the desired results. * Be careful not to use two filters simultaneously in order to avoid unintentional cut in the periphery of a photograph. [. . . ] Holds OM Compartment Case M A soft shoulder case with parti- Compartment Case L A hard shoulder or hand-carried case with two adjustable partitions. Holds two OM Bodies, two interchangeable lenses (including 300mm telephoto lens), electronic flash, large format camera, and other equipment. Body with two interchangeable lenses and filters, or with Electronic Flash T32 and Bounce Grip. tions and two pockets. Holds OM Body, three interchangeable lenses and various auxiliary equipment including electronic flash. It also accommodates clothing and toiletry for travelling, in addition to photographic Camera Holder for Case M Besides the camera holder provided with the Case M, one more camera holder is attachable on the right or left wall of the case as preferred. [. . . ]