Mamiya 645 AFD III manual Front / Rear Dial Lock Function, Depth of Field / Depth of Field Preview

Page 41

Front / Rear Dial Lock Function

Depth of Field / Depth of Field Preview

When the Electronic Dial Lock is “On,” all currently set values in “ Av” (Aperture Priority AE), “Tv” (Shutter Priority AE) and “M” (Manual mode) cannot be adjusted with the front or rear dials. This prevents accidental change of shutter speed or aperture values.

Depth of Field

Depth of field (D.O.F.) is defined as the zone of sharpness before and behind the plane of focus. It depends on distance to subject, focal length of lens, aperture setting and distance the lens is focused at.

C

F

X

 

 

M

A

Tv

P

v

 

How to set dial lock

Press the multiple exposure mode and auto bracketing mode button together for about 1 second so that “On,” flashes on the display.

How to release dial lock

To release dial lock, press the same buttons as in "How to set dial lock" so that “OF” flashes on the display.

In addition to visual observation via the depth of field preview button, the D.O.F. can be determined by using the depth of field scale on each lens. The f/stop numbers appear on both the right and left side of the white index mark in the center of the scale. Simply read the figures which appear above the f/stop numbers on the distance scale of the lens. (see illustration below)

When the aperture is open (the subject depth is small)

★The setting will be stored after one second.

C

F

X

 

 

M

A

Tv

 

P

v

 

When dial lock is set, the dial lock display "L" appears on the external LCD.

When the aperture is

 

 

 

 

 

 

stopped down

 

 

 

 

 

 

(the subject depth is large)

1.5

4

 

5

7

ft

 

 

 

 

1.2

 

1.5

2

m

 

 

22

11 4

4 11

22

 

Depth of Field Preview Button

When the preview button is pressed in, the depth of field for the aperture set on the camera can be checked by looking through the viewfinder.

★When the dial lock is ON, the shutter speed and aperture will not change even if you turn the front or rear dial.

★When you activate the electronic dial lock, and if you then operate the electronic dial, the dial lock indicator “L” on the main panel blinks for three seconds to show that the electronic dial lock is functioning.

★Dial lock can not be set when the exposure mode is “P” (program AE).

★Even while dial lock is set, the front dial or rear dial can still be used to perform the various settings. (Dial lock is temporarily released.)

After focusing, press the preview button.

The diaphragm will be stopped down to the set aperture.

★While operating the preview button, you can-

not release the shutter.

79

 

80

 

Page 40 Page 42
Image 41
Page 40 Page 42
Contents Instructions Preface Special Advice To Professional PhotographersNames of Parts and Functions Main LCD Liquid Crystal Displays LCDViewfinder LCD Electronic Dial OperationMiscellaneous Operations 98 to110 ContentCustom Functions 90 to Camera Operation Test Set the auto focus mode selec- tor lever to S. SeeAlkaline battery Checking the Battery PowerInserting the Batteries without batteries Camera will not operateBattery Power / Battery Care Installing the Battery in the MagazineRemove the battery compartment screw cap Insert a batteryAttaching the lens Attaching and Removing a LensShutter Safety Retraction Before installationInstallation and removal of the magazine and its dark slide Attaching / Detaching a MagazineDiopter not matching.Diopter matching Diopter AdjustmentReplacing the Diopter Correction Lens Dial Setting the Index NumberHow to imprint the same index number Setting Date and Time / Strap Setting Date and TimeBasic Operation Attaching a Lens and a Magazine Setting the Film SpeedAttaching a Lens Attaching a MagazineLoading Film in the Magazine Close the back cover Attach the leader paper of the film to the empty spoolInsert the loaded film insert into the magazine Film.Compatibility between the HM402 and HM401 120/220 magazines Selecting the Shooting Frame Number DisplayCamera Magazine BodySet the focus mode selector lever to S single focus mode Taking Photos in the Fully Automatic ModeMode setting and a C continuous advance Mode setting. SeeFocus Shutter Release Button / Holding the CameraShutter Release Button Holding the CameraUnloading the exposed film Removing a Partially Exposed Roll of FilmThis chapter describes various functions of the camera Electrical ContactsContinuous focus mode C Single focus mode S Focus AreaFocus Modes Focus AreaManual Focus Mode M Manual Focus ModeLenses with the Focus Mode Selector Mals in cages, etc Subjects with continuous re When Auto Focus FailsManual focusing using the focus mark Set the focus mode selector lever to S or C Using the Focus Lock FunctionAdjust the composition AF Assist Infrared LightSelf-Timer Mode Single-Frame ModeContinuous Mode Drive ModesProgram AE P Exposure ModesProgram Shift PH/PL Normal Program shift areaShutter Priority AE Tv Custom settings C-01 onAperture Priority AE Av Turn the front dial to set the desired shutter Manual Mode MSpeed ±6 EVMode CF Custom Function Mode CFOne-push shift function Selected aperture value can be locked. SeeExposure Metering Modes How to select an exposure modeExposure Metering Modes Exposure warningsWidth of the exposure compensation step can be changed Exposure CompensationDisplay of the exposure compensation of the viewfinder LCD Metered-value difference indicator AE Lock ModeNormal exposure Under exposure Auto-Bracketing ModeMargin AE settings under auto-bracketing mode Multiple Exposure ModeSingle-Frame Mode S Continuous Mode CPress the shutter release button To cancel the Multiple Exposure ModeCelled Exposure compensation in typical multiple exposuresHalfway while looking into the view finder Using auto focus and auto exposure Manual modeTaking Photos with the Mirror Up Electronic Shutter Release Contact / Eyepiece Shutter Selecting the Number of Frames to be ShotElectronic Shutter Release Contact Eyepiece ShutterSelf Timer Mode Depth of Field / Depth of Field Preview Front / Rear Dial Lock FunctionFlash Photography Infrared PhotographyFor example Rear Curtain Sync ModeMetz Flash SCA3952 System Functions Viewfinder LCD read-outs Flash Compensation SettingsExternal LCD Panel normal display This camera’s synchro contact is an X contact Superimposing DataSelected shutter speed and aperture level can be locked See Custom Functions Custom Functions of Mamiya 645AFD Setting Custom FunctionsTypes of Custom Functions Mode one-push setting AFL function lock modeBulb exposure time setting Bulb shutter release settingMiscellaneous Operations Changing the Focusing Screen External Battery Socket Using the M645 Manual Focus LensesAvailable functions with M645 lens Half press the shutter release button to show shutter speedMemo Clip Using a TripodTripod / Memo Clip When Any of These Displays Appear Field of View 94%* of actual image Viewfinder Information SpecificationsImportance of Proper Maintenance Maintenance and check of the cameraCommon Sense Camera Care and Practice After-Sale Servicing

645 AFD III specifications

The Mamiya 645 AFD III is a substantial piece of photographic equipment that has long earned its place as a favorite among professional photographers and serious enthusiasts. Building upon the success of its predecessors, this medium format camera offers a blend of advanced technology and ergonomic design, making it a robust tool for capturing stunning images.

One of the primary features of the Mamiya 645 AFD III is its medium format film capability, which utilizes 120 or 220 film. This allows photographers to achieve superior image quality with greater detail and a richer tonal range compared to standard 35mm cameras. The camera's 6x4.5 cm frame size is ideal for producing high-resolution images that are perfect for large prints and commercial works.

The AFD III is equipped with an advanced autofocus system, featuring a 5-point autofocus sensor that works efficiently in a variety of lighting conditions. The AF lock feature enables precise focusing on subjects, ensuring that photographers do not miss crucial moments. The camera also supports manual focus for those who prefer greater control over their shots.

Another significant aspect of the Mamiya 645 AFD III is its compatibility with a wide range of interchangeable lenses. Mamiya's extensive line of lenses includes options for wide-angle, standard, and telephoto photography, catering to diverse creative needs. This versatility is enhanced by the camera's electronic aperture control, which allows for smooth adjustments while taking photos.

Built with a durable, all-weather body, the Mamiya 645 AFD III stands up to the rigors of professional use. Its design focuses on user comfort, with intuitive placement of buttons and controls that facilitate quick adjustments on the fly. The camera's clear viewfinder provides a bright, unobstructed view for accurate composition.

The inclusion of an electronic film advance further simplifies the shooting process. The camera can automatically advance the film to the next frame, minimizing the risk of double exposure. Additionally, the Mamiya 645 AFD III features a built-in metering system, allowing for accurate exposure readings in various lighting environments.

For those transitioning to digital photography, the AFD III can be paired with a digital back, making it a flexible choice for both film and digital mediums. This adaptability ensures that photographers can choose the best format for their creative vision.

In conclusion, the Mamiya 645 AFD III is a medium format camera that combines quality, versatility, and user-friendly technology. Its impressive features, robust build, and support for various photographic needs make it an exceptional choice for anyone serious about photography. Whether shooting landscapes, portraits, or commercial work, the Mamiya 645 AFD III provides the tools needed to capture stunning images with precision.
Top Page Image Contents