Instruction d'utilisation Vivitar V-800MR

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800mm Mirror Lens
INSTRUCTION MANUAL
V-800MR

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Limited Five Year Warranty Vivitar warrants this quality product to be free of defects in material and workmanship for a period of five years f rom the d ate of purchase. During the period, Vivitar will repair or replace the product at no charge for parts or labor. TIME PERIOD OF THIS WARRANTY The time period of this warranty starts from the date of the original purchase and expires on the fifth anniversary date of purchase. WHAT IS NOT COVERED BY THIS WARRANTY No express or implied warranty

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WHAT TO DO WHEN SERVICE IS NEEDED STEP 1. Package the product and relevant accessories carefully, using ample padding materials and a sturdy mailing container to prevent damage in transit. STEP 2. Include in package: a) Evidence of date and place of original purchase (for example, a copy of your sales receipt). b) Detailed description of your problem. c) When possible, a sample evidencing the problem. STEP 3. Return item (insured) to: (in the U.S.): (in the U.K.)

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3 1 500mm Mirror Lens 2 1 Focus Ring Distance Scale 2 3 Index for Distance 4 Macro Ratio 4 -3-

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Specications : Filter Size 30.5mm (rear mount) : Minimum Focus Distance 5.7 feet (1.73 m) : Focus Control Single focus lens : Angle of View 3 Degrees : Groups/Elements 8/8 : Length 5.7" (144.5 mm) : Maximum Diameter 4.4" (111 mm) : Weight 1.94 lb (880 g) -4-

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Your new Catadioptric or Reex mirror lens is a highly developed, computer designed product which uses the merits of both reex optics and refraction optics. This gives you very sharp picture quality with less color aberration, which is considered the most harmful factor in the eld of telephoto photography. 1. Required T-Mount A proper T-Mount adapter should be threaded onto the back of your lens in order to attach your lens to your camera. 2. Mounting Your Lens to Your Camera The T-Mou

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NOTE: In order to compensate focusing when normal positioning may be altered due to extreme temperature change, the focusing ring has been designed to allow rotation beyond the xed marks of the distance scale. To avoid mistakes, always focus while looking through the viewnder. NOTE: No adjustments in focusing are necessary when taking infrared photography as required with normal lenses. 4. Light and Contrast Control Since the reex lens is not equipped with a diaphragm system, the use of lt

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Y52 (Yellow): This lter is used when taking black and white pictures. It also makes a blue background darker. It is quite eective when taking shots of clouds on a blue horizon. 056 (Orange): This lter makes blue or green color lines darker and yellow or red color lines lighter than they seem to the human eye. It is most eective when stronger contrasts are desired. R60 (Red): This lter is used to make daytime scenery appear as night time scenery, or to emphasize and strengthen contrast. It

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6. Exposure or Aperture Adjustments with TTL Cameras Since the aperture of the reex lens cannot be changed, the exposure is controlled entirely by the shutter speed being used. The speed dial is set according to your TTL reading. Cameras with automatic aperture and shutter priority will automatically set the right speed with their auto exposure mechanisms, with the exception of a few models which require manual function. With aperture priority or manual operation of your camera, the apropriat

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Filter UItilization Chart (Exposure Adjustment) Under Daylight Under Tungsten Light Kind of Filter Color Exposure Shutter Stop Down Exposure Shutter Stop Down Normal Clear 1 No Adjustment 1 No Adjustment Y52 Yellow 2 1 1.5 1/2 056 Orange 2

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NOTE: Generally, if a 1/2 shutter speed adjustment is indicated to negative lm, a full stop should be taken. When a reversal lm is being used, disregard the half-stop setting and use a normal shutter speed. 8. Depth of Field The area in acceptable sharpness in front of, and behind the subject in focus is called the depth of eld. The aperture selected and the distance of the subject as well as the focal length of a lens determines the depth of eld. Because of the long focal length of yo

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9. Cleaning and Maintenance Tips A. The lens should always be capped when not in use. Only wipe with cleaning papers or cloth specically made for optics. B. Accumulated dust should be blown o with a syringe or blower brush specically designed for this purpose. To remove ngerprints or smears, shred the end of a lens tissue and roll it to make a swab: dampen it with a lens cleanerspecially made for photographic optics and gently wipe the surface without applying too much pressure. If necess

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