Olympus OM-2, zm2000qdk manual Depth of Field Scale Preview Button

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DEPTH OF FIELD SCALE

PREVIEW BUTTON

The double series of numbers engraved on the

depth of field scale represents F stops: F4, F8, and F16. Once you have focused on your subject,

all objects within the distance range indicated on the lens distance scale between the marks for the F stop you have selected will have acceptable sharpness. For example, in the above picture, the camera-to-subject distance is 3m (10ft.) and the lens is set at F16. If you read the distance scale at the points opposite the engraved "16" on both

sides of the reference dot, you will find that the

depth of field is from 1.9m (6ft.) to 7m (23ft.).

When you wish to see which objects fall within

the acceptable zone of sharpness (depth of field),

press the preview button on your lens. The dia- phragm of the lens will stop down to the preset

F stop enabling you to see the depth of field in the viewfinder.

CAUTION: If you jerk the preview button while depressing the shutter release button halfway

down the shutter might be released.

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Contents Page To an OM-2 Owner Description of Controls Selector Lever Hot Shoe Socket Self-Timer Depth-of-Field Preview Button Table of Contents On OM System Inserting the Batteries Mounting the LensMount the Lens Battery Check and Mirror LOCK-UP Check the BatteriesMirror Lock-Up Loading the Film Exposure Counter Exposure CounterWhen Setting ASA Setting the ASA Film Speed DialAperture Ring and Manual Shutter Speed Ring Aperture RingManual Shutter Speed Ring Setting the Selector Lever Viewfinder Focusing FocusOut of focus Automatic Exposure Control Aperture-Preferred SystemZoom lenses to 200mm 1/250 second or Shutter Speed-Preferred System Manual Exposure Control Shutter Speed-Preferred Manual Exposure ControlAperture-Preferred Manual Exposure Control If the Exposure Needle Does Not Center on the Index Holding the Camera Vertically Holding the CameraHolding the Camera Horizontally Putting the Camera into OperationUnloading the Camera Making Multiple Exposures Stopping the Self-timer Setting the SELF-TIMERExposure Compensation Exposure Compensation for Automatic Measurement Exposure Compensation for Manual Measurement Dark subject in bright backlightingBright subject in dark background Depth of Field Depth of Field Scale Preview Button Infrared Photography Camera Back Replacement Interchangeable Focusing Screens Flash Photography with the T32orT20 Electronic Flash Used Flash Photography with the T32 or T20 Electronic Flash Flash operation Normal automatic TTL Centralized ControlBounce Flash CLOSE-UP Flash With Quick Auto Flashbulb Photography Motor Drive Motor Drive PhotographyAttaching the Motor Drive Release the shutter Winder Winder 2 OperationTaking the pictures Attaching the WinderGeneral Care and StorageParts Why cant I set the ASA film speed I need? Rewind knob rotate when I advance the film?Why cant I advance the film? Why wont the shutter release button move When I press it?Why doesnt the battery chamber cap fit? When should I check the batteries?What batteries should I use? Shoe? How can I remove dust from inside the view- finder?Diagram of light path in conventional SLRs Page Page OM System Zuiko Interchangeable Lens Group Page 16mm F3.5 Table of Interchangeable Lenses181mm 80mm 255mm 80mm Adapter Ring 49 72mm Interchangeable Lens Group UnitsLens Hoods Camera Body Cap Rear Lens Cap Front Lens CapsGrey Finder Group Finder Group Units For most lenses Finder Group UnitsIs made automatically by the light supply Flash Photo Group Page Flash Photography System Chart T10 Ring Flash Flash Photo Group UnitsElectronic Flash T32 Electronic Flash T20TTL Centralized Control Flash by T32 T20/ OM-2 Combination Power Control Zoom Adapter T32 Power Bounce GripTTL Auto Cords T 0.3m, 0.6m, 2m, 5m Grip CordElectronic Flash AC Adapter Wide AdapterND Filter Set T32 Electronic Flash AC AdaptersLens Pouches 150/100 Compartment Case SOlympus PS200/PS200 Quick Page Motor Drive Group Page Chart of Motor Drive Group Motor Drive Group Units Winder 2 with M V Battery Holder6V Power Pack 18V Control Grip 1 with M V Battery HolderMotor Drive Group Units Macrophotography Group Chart of Macrophotography Group Close-up Lens 49mm f=40cm Close-up Lens 55mm f=40cm Macrophotography Group UnitsTelescopic Auto Tube Auto Extension Tubes 7, 14Objective Lens Mount PM- MTob Focusing RailFocusing Stage Auto BellowsGrip Cord TTL Auto Cord T 0.3m, 0.6m, 2m, 5mCable Release SR-11 Copy Stand Macrophoto Stand B AdapterMacrophoto Stand Extension Bar VST-E Double Cable ReleaseCentering Mirror PM-ELCS Epi-llluminators PM-LSDTrans-llluminator LSD Lieberkuhn Reflector PM- LM38 LM20Stage Plate 45 metal disc Spare Bulb 6V 5A TB-1Spare Bulb 6V 5A TP-1 Adapter PM-EAPhototechnical Group Page Page Chart of Phototechnical Group Phototechnical Group Units For Pen FCable Release SR-11 Photomicrography Group Page Chart of Photomicrography Group Photomicrography Group Units Photomicrography Group Units Chart of Photographic Ranges Soft Case for OM Body with F1.2 Case Group Case Group UnitsHard Case for OM Body Semi-Hard Case for OM Body with F1.8 or F1.4 Lens PouchCamera Holder for Case M Compartment Case MPartitioned Insert Chart of Case Group Main Specifications Film format 24mm x 36mmViewfinder magnification 0.92X at infinity with With F1.2 lens 136 x 83 x 97mm Main SpecificationsDimensions and weights With F1.8 lens 136 x 83 x 81mmOlympus Corporation