Cosmorex Se Owners Manual
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cloth. Photographing a dark mineral speci- men? Try putting it on a light-colored fabric for the picture. The contrast be tween your subject and the background will make your subject stand out much more clearly... and appear even sharper. R emember to take the meter "reading" for the subject. At distances closer than two feet, your meter is "seeing" an area slightly higher than your lens. Ordinarily, this is overcome very easily by simply tilting your cameras meter down towards your subject when taking your "reading" then raising the camera to the desired posi tion for the final exposure. U se extra lighting if possible. Close-up photographs taken indoors are sharper and clearer when extra lighting is used. For copying 2- dimensional subjects (such as maps, documents, or photographs), an excellent (and quite inexpensive) indoor lighting setup can be made using two Number "1" photoflood lamps, available from your dealer. These bulbs can be used in ordinary goose-neck lamps, or in "clamp-on" sockets that easily attach to chairs, tables, or whatevers handy. To arrange lights, just position both lamps on opposite sides of the subject, aimed at the center of the subject ( a 45 0 angle is best). Make sure both lamps are at about the same distance from the sub ject - this prevents one side of the picture from being lighter or darker than the other. Excellent close-up and copy pictures can be taken with color film, using the techni ques suggested above. If youre shooting indoors and using photofloods, always use an 80B filter (available from your dealer) when using daylight-type color film. This manual created and owned by www.butkus.org/ chinon 49
A NOTE ON FRAMING ... As with virtually all modern single-lens reflex cameras, the Cosmorex viewfinder shows an overall area somewhat smaller than the total film area. In practical picturetaking, this in sures that everything you see in the viewfinder appears in the finished print or slide, despite the fact that slidemounts and masks in print ing equipment actually cover some of the films image. The illustration above shows the total film area, the smaller area visible in a mounted slide, and the area displayed in your cameras viewfinder. Use this illustration as a guide in framing for critical close-up photo graphs. PHOTOGRAPHY THROUGH YOUR MICROSCOPE (Photomicrography) Your versatile Cosmorex camera can even take pictures through a microscope! For pictures at moderate magnifications, no accessory is needed other than a rigid tripod or copystand to hold your camera (with lens attached) over the eyepiece of the micro scope. For professional photomicrography or photomicrography at higher magnifications, the camera body is attached directly to the microscope by means of a thread-mount Microscope Adapter available from your dealer. Detailed information on this fascina ting area is also available from your dealer. 50
USING FILTERS AND LENS HOODS ON YOUR COSMOREX The 58mm f/2.0 automatic lens supplied with your Cosmorex accepts standard 52mm screw-in filters and lens accessories. Filters can be divided into two basic types: color conversion filters, designed to con vert color films balanced for a specific light source for use with other light sources, and color correction or special-effects filters, de signed to change the overall colors of a scene and give more pleasing or dramatic effects. M any photographers find a 1A Skylight fil ter the most useful single type; this reduces the excess bluish content often found in sunlight, requires no increase in exposure, and may be kept on the lens at all times for protection. See filter chart for infor mation on other filters. L ens hoods are simply shields which screw into your lens, and protect it from glare caused by light entering the lens from above and the sides. While under certain conditions all photographic lenses show some glare (Flare these inexpensive aids prevent it in most instances. Both folding rubber and rigid metal types are available from y our dealer. This manual created and owned by www. butkus.org/chinon
FILTER REFERENCE CHART For Filter Type Appearance Purpose Film Types Exposure Increase* f/Stops Factor 1A (Skylight) Pale Amber Improves colors outdoors when light is blue All 00 UV (UV16) Colorless Warms colors at high altitudes or when subject is in shadows All 00 81 A Red/Yellow Gives most pronounced warming effect; use on overcast or rainy days. Color /z 1.4 82A Light Blue Reduces excessive reddishness of day- light in early morning, late evening. Color % 1.5 80A Med. Blue Converts Daylight color films for use with 3200K floodlamps. Color 1/z 3.2 80B Dark Blue Converts Daylight color films for use with standard 3400K floodlamps (No. 1, 2, BEP). Color 1 2.0 85A Orange Converts Type A color films for use in daylight or with electronic flash. Color 1 2.0 85B (TypeB) Red-Orange Converts Type B color films for use in daylight or with electronic flash. Color 1 2.0 FL-D Pink Converts Daylight color films for use under fluorescent lighting. Color 1 2.0
For Filter Type Appearance Purpose Film Types Exposure Increase* f/Stops Factor Polarizer Neutral Eliminates reflections, glare from water, glass, metal; darkens sky, makes clouds more prominent, im proves color saturation. All 1/-2 3.0-4.0 K2 (Y2) Yellow Darkens sky, makes clouds stand out clearly. B&W 1 2.0 02 (G) Orange More pronounced cloud /sky separation. B&W 2 4.0 R2 (25A) Red Most pronounced cloud/sky separation. B&W 3 8.0 G2 (X1) Green Lightens trees, grass, foliage; shows flesh tones more clearly where foliage is visible. B&W 1 2.0 *Tocompensateforthelightabsorbedbythefilter,anincreaseinexposureisrequired(exceptfor1Aand UVfilters).Toobtainthis,either(a)determineexposureinnormalway,thenopenuplensthenumberof f/stopsshown,or(b)divideASAFilmSpeedbythe"Factor"listed,settheresultant(lower)filmspeedonyourExposureMeteror Flash Calculator, and then determine and set exposure in the normal way. (Please consult Film Instruction Sheet for recommendations for specific film types.)
CHOOSING FILMS/PROCESSING Your Cosmorex camera accepts all standard 35mm film cassettes. Choose from these three basic film types: Color Negative Films are designed princi pally for making color prints. These are ordinarily returned to you (along with your negatives) in 3/2x5" size - excellent for albums. From your color negatives, smaller or larger prints may also be ob tained (or ordered at any future time). Todays color negative films are medium speed types, ranging from ASA 80 to 100. Theyre quite practical for use outdoors, or indoors with flash (no filter is necessary). Their wide latitude generally provides good results even if somewhat under or over exposed - a valuable extra "insurance" of good pictures. In addition, fine-quality color slides can be made from most color negatives at moderate cost, should this later be desired. Color negative films can be processed through your dealer or at home. Color Slide Films are normally returned as mounted color transparencies for use in hand viewers or slide projectors. Many types are available, ranging from relatively slow-speed (ASA 25) to ultra-speed (ASA 160 or more). Generally, most photographers find medium- speed types (ASA 64-100) most pleasing for a majority of picture-taking situations. Usually, slide films are "Daylight" balanced (making them suitable for use with electronic flash without filters, too); some films are balanced for photo flood lamps, and require a filter when used in daylight. All slide films may be processed through your dealer, and several at home, too. This manual created and owned by www. butkus.org/chinon
BlackandWhiteFilms producenegatives from whichprintsaremade.Filmtypes rangefrom slow-speed, ultra-fine-grain emulsions (ASA 32) to films fast enough to make most indoor pictures possible without flash (ASA 400). Normally, your dealer makes 3 1 /2x5" prints; enlargements are easily obtainable as well. Black-and white films are the simplest, and most economical, of all film types for home processing and enlarging. Standard 35mm films are supplied in 20 and 36 exposure rolls. If you use lots of film, ask your dealer about a Bulk Loader which lets you load your own cassettes from long "bulk" film rolls, in any length up to 36 exposures. This can reduce the cost of black-and-white film even further. DOING YOUR OWN PROCESSING AND ENLARGING For many photographers, one of the major joys of photography lies in processing and printing their own pictures ... something thats simpler, and in many instances, more economical, than ever before. Even if youve never "processed your own" before, youll find yourself producing excellent negatives and prints - including color prints - almost from the beginning with todays simplified processing and printing equipment. ( Details on the comprehensive Omega system of en largers, accessories, and color processing materials may be obtained without cost by writing to our sister company, Berkey Marketing Companies, Inc., Omega Division, 25-20 Brooklyn-Queens Expressway West, Woodside, New York 11377.) Talk it over with your dealer - youll be surprised at how easy, and how satisfying, it is to do your own developing and printing.
TECHNICAL SPECIFICATIONS Camera Type ...................................... 35mm single-lens reflex camera with interchangeable lenses, focal-plane shutter, and built-in exposure meter. Format ................................................ 24x36mm; accepts standard 35mm 20 or 36-exposure cassettes. Standard Lens ..................................... Automatic Cosmogon 58mm f/2.0; 6-elements in 4 groups. Hard-coated, color-corrected. Angle of view 42 0. Minimum Focus ................................ 21.2" (0.54m) from film plane. Aperture Range .................................. f/2.0 - f/16; positive click stops at full and inter- mediate apertures. Filter/Accessory Size .......................... 52mm x 0.75 screw-in. Diaphragm Type ................................ Fully automatic, instant-reopen; optional manual aper ture control. Lensmount ......................................... Universal Thread Mount (42mm); accepts standard single-pin Automatic lenses and accessories. Flange/Film Distance ......................... 45.5mm. Shutter ................................................ Horizontally-traveling cloth focal plane; speeds B, 1130 t 1/60, 1/125, 1/250, and 1 /500th second. This manual created and owned by www.butkus.org/chinon
Flash Synchronization .......................... Full M/X Synchronization at 1/30th second via selector switch. Flash Contact ................................. PC outlet accepts all standard flash cords. Viewing/Focusing System ................ Eye-level pentaprism shows upright, laterally-correct image at life-size (1x) with 58mm lens; instant-return mirror. Focusing Screen ............................. Central Microprism surrounded by fine groundglass collar. Exposure Meter ............................. Built-in selenium-cell meter, with match-needle shutter/aperture readout. ASA Film Speed Range 25-500. Equivalent DIN indices ( 13-28). Calibrated for aper tures from f/2.0 to f/32, shutter speeds from 30 seconds - 1/500th second. Loading ....................................... Hinged back, multi-slotted take-up spool. Exposure Counter ........................... Additive 0-36, manual resetting type. Transport ....................................... Two-stroke ratchet-action lever advances film, winds shutter, counts exposures, prevents double exposures. Unloading ..................................... Locking rewind release control; elevating rewind knob rises above camera body for convenient access.
Self-Timer ..................................... Built-in with approximately 10 seconds delay. Maybe disengaged without firing shutter if desired. Tripod Socket ............................... Standard 1 /4x20, accepts all standard tripod and bracket retaining screws. Construction ................................. Metal alloys used throughout. Finish .......................................... Satin chrome, with black leather-grain trim. Dimensions ................................... Body Only: 2"x3.9"x5.4" With Lens: 3. 7 "x3.9"x5.4" Weights ......................................... Body Only: 24.5 oz. Standard Lens: 10.3 oz.