Nikon F80D instruction manual Depth of field, Focus Tracking

Page 45

COLUMN

About Depth of Field and Focus Tracking

This camera is equipped with autofocus where focusing is automatically executed by the camera. Basics of the relationship between focus and depth of field and Focus Tracking are explained in this section.

•Depth of field

When focusing, depth of field should be considered. Depth of field is the zone of sharpest focus in front of and behind the subject on which the lens is focused. It varies according to shooting distance, focal length and, above all, aperture. Smaller apertures (larger f-numbers) will produce a deeper depth of field where the background and foreground become sharper; larger apertures (smaller f-numbers) will produce a shallower depth of field where the background becomes blurred. Similarly, shorter shooting distance or longer focal length will produce a shallower depth of field, and longer shooting distance or shorter focal length will produce a deeper depth of field. Note that depth of field tends to be shallower in front of and deeper behind the subject in focus.

•Focus Tracking

When the focus mode selector is set to Single Servo AF (S) or Continuous Servo AF (C) and the shutter release button is lightly pressed or AE-L/AF- L button (when AF start in ·11 is selected) is kept pressed, the camera automatically switches to Focus Tracking when a moving subject is detected. Focus Tracking enables the camera to analyse the speed of the moving subject according to the focus data detected, and to obtain correct focus by anticipating the subject’s position—and driving the lens to that position—at the exact moment of exposure.

In Single Servo AF, Focus Tracking is activated with a subject that has been moving in advance to the focus detection, and focus is locked when the subject stops moving and / appears in the viewfinder. In Continuous Servo AF, camera continues to track subject (even with a subject which started moving in the middle of the focus detection) and focus is not locked.

COLUMN

88

DATA BACK

Imprint the date and/or time on photographs

with the data back of the Nikon F80D or F80S, and also shooting data between frames (F80S only).

89

Image 45

Contents Page Nomenclature LCD Panel/Viewfinder Display About Nikon Advanced Focusing Screen DisplayLCD panel Viewfinder DisplayCustom Setting Command DialsFilm ExposureIntroduction Using your camera correctlyTake trial shots Have Nikon spot-check your camera regularlyContents Power Mount Lens Install Batteries and Check BatteryAbout This Manual Load FilmSitua Basic OperationChamber cover by sliding the battery chamber cover Turn the power switch off and open the batteryPositioned as marked inside the battery chamber Cover, then firmly close the battery chamber coverMount Lens When camera is left unattended without lensCheck the lens type Detaching the lensLoad Film Set the AF Area mode selector to g Single Area AF Set the focus mode selector to S Single Servo AFRotate the focus area selector lock lever to lock Focus areaSet the exposure mode select dial to ¡ Auto-Multi 2 Progam Shooting characteristics of exposure modesSet the metering system selector to Matrix Metering Hold Camera and Focus Hold the camera properlyCamera shake and shutter speed Pressing the shutter release button. Shutter speed Confirm indications in the viewfinder while lightlyAperture are shown in 1/2 steps Confirm that film is completely rewound, thenPress the Speedlight lock-release button to release Using Built-In SpeedlightSpeedlight. The Speedlight starts charging AutomaticallyExposure Metering SystemTypes of CPU lenses and other usable lenses/accessories When a non-CPU lens is attachedLens Compatibility Type Nikkor and other CPU Nikkor lensFilm advance mode Setting and confirming film speedFilm Mid-roll rewindRotate AF Area mode selector to select AF Area mode AF Area ModeFocus mode selector AutofocusDynamic AF Mode with Closest Subject Priority J Autofocus modesFocus Focus Area AF-Assist IlluminatorOptional Speedlight and AF-Assist Illuminator Focus Lock Confirm focus indicator / and lock focusWhile keeping the focus locked, recompose ShootManual focus using Electronic Rangefinder Manual FocusPatterned subject or scene Metering systems and characteristics of each are as follows Centre-Weighted MeteringExposure Metering System Matrix Metering/3D Matrix MeteringRotate the exposure mode select dial to select ¡ Shooting in Each Exposure Mode¡ Auto-Multi Progam Compose picture, focus and shootShutter-Priority Auto Rotate the exposure mode select dial to selectRotate the exposure mode select dial to select £ Set the aperture by rotating the Sub-Command Dial£ Aperture-Priority Auto Electronic analog exposure display ¢ ManualAuto Exposure Lock Exposure compensation can be performed in any exposure mode Exposure CompensationAuto Exposure Bracketing Standard compensation value in Multiple exposure Multiple ExposureRotate the Main-Command Dial to select buLb Composeshoot. picture, confirm focus indicator /Rotate the Sub-Command Dial to set the aperture Multiple Exposure Long Time ExposureComposition Self-Timer Operation Custom SettingMenu/Features of Custom Setting Illumination for superimposition Auto film loading when camera back is closedFocus area selection Closest-subject-priority Dynamic AF in Single Servo AFTime delay for auto meter-switch-off Command Dial functions pagesSelf-timer duration Film rewind pagesFlash Photography Two-Button ResetBuilt-in Speedlight Accessory shoe3D Multi-Sensor Balanced Fill-Flash Multi-Sensor Balanced Fill-Flash¤ Slow Sync Flash Sync Mode Features‹ Rear-Curtain Sync › Red-Eye ReductionSet exposure mode and confirm shutter speed and aperture Using the Built-In SpeedlightSet the metering system Flash shooting distance range for built-in SpeedlightUsable lenses with built-in Speedlight Usable Lenses with Built-In SpeedlightUsable Optional Speedlights Flash modeFocus Tracking Depth of fieldPush Adjust button to set the year to Push Mode button to select one of the date displaysSetting is complete, push the Select button so Newly adjusted date display appears withoutImprinted date/time Imprinting date/timeMiscellaneous Optional Accessories Camera Care Turn the camera power off when changing batteries TroubleshootingUse fresh batteries at low temperatures Keep batteries out of children’s reachUnderexposure CPU Specifications106 107 108 109 Index Custom Setting Menu 114 115 Nikon Corporation