Nikon Nikon Nikomat FT, Nikon FA manual EV Range of the Camera, What is EV?, EV Chart

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EV RANGE OF THE CAMERA

What is EV?

Exposure value (EV) is a number representing the available combinations of shutter speed and aperture that give the same exposure effect when the scene brightness and ASA/ISO remain the same.

At ASA/ISO 100, the combination of a one-second shutter speed and an aperture of f/1 4 is defined as EV 1. If the aperture is stopped down by one full f/stop or the shutter' speed is one step faster. the EV increases by one; if the aperture is opened up by one full f/stop or the shutter speed is one step slower, EV decreases by one Using ASA/ISO 100 as an example, 1 sec. at f/2 represents EV 2,1 sec. at f/5.6 represents EV 5, while 1/125sec. at f/5.6 represents EV 12. As the exposure is the same.1/30sec. at f/11 and 1/1000sec. at f/2 are also EV 12.

EV Chart

The Nikon FA's meter can only be used within the meter's EV range. The chart shows the relationship between the shutter speed, f/stop, and film speed Careful attention to this chart will assure precise exposure, automatically, over the entire usable range of the FA Depending on film speed, EV range determines the following: in the P mode, the usable combinations of aperture and shutter speed, in the S mode, the usable apertures to match the shutter speed set on the dial: and in the A mode, the possible shutter speeds to match the aperture set on the lens. With ASA/ISO 100 film and a 50mm f/1 4 lens, the usable EV range is 1 to 20 As you can see from the chart, any shutter speed from 1 to 1/4000sec. can be used within this range However, when using ASA/ISO 200 film, the EV range is reduced to 2 to 20, whereas with ASA/ISO 400 film, it becomes 3 to 20. Therefore, with ASA/ISO 200 film, the slowest usable shutter speed is 1/2sec., whereas 1/4sec. is the slowest speed usable with ASA/ISO 400 film. This information is reflected in the LCD inside the camera's viewfinder. For example, with ASA/ISO 200, if you set the mode selector to P or A,1 will never appear, but as the light gets dim, Lo appears immediately after 2 Likewise, with ASA/ISO 200 in the S mode, if you set 1 sec. on the shutter speed dial, 1 will not appear, but in its place either a faster shutter speed is displayed (if the shutter speed is shifted to a higher one when the scene is bright) or Lo appears (when the scene is too dark). With ASA/ISO 400 film, 1 and 2 never appear, indicating that 1 and 112sec. are unusable shutter speeds.

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Contents Nikon Nomenclature Page Page Contents Foreword Installing Batteries Remove the battery clip Insert batteries. Wipe the batBasic Operation Checking Battery Power Usable Lenses Mounting the LensAl-S Nikkor An Updated Version of Al-Nikkor Lenses Loading Film Page Film rewind crank 57 and rotate Take up film slack. Fold outFrame Counter Film Advance LeverMemo Holder Setting Film Speed Programmed Selecting the Shooting ModeShutter Priority Aperture-PriorityLens or accessory Usable Shooting Modes/Metering Method Combination ChartViewfinder Information Control button is in the normal out Programmed ModePosition and the red index is not on Top refer to page 40 for moreLook through the viewfinder and check the exposure Programmed Exposure Measurement Graph Page SHUTTER-PRIORITY Mode Page Shutter Speed/Aperture Combinations in S mode Page Set the mode selector to a Set the lens to the desired f APERTURE-PRIORITY ModeLook through the viewfinder and check the exposure Set the mode selector to M Set the lens to the desired f Manual ModeM250 and B Settings Holding the Camera Detachable Handgrip Split-image rangefinder Microprism collar Matte field FocusingMatte field focusing Split-image focusingTaking Pictures Unloading Film Rewind the film unfolding Exposure Metering System Technical INFORMATION/PHOTOGRAPHY TechniquesMetering Control Button Technical INFORMATION/PHOTOGRAPHY TechniquesOutdoor backlit subjects Scenes with high reflectivity Front-lit subject against dark backgroundPage Sunrises and sunsets Indoor backlit subjects Aperture f-number Relationship Between Shutter Speed and AperturePage Depth of Field Lens set at f/2 Exposure Compensation Suggested Applications for Exposure CompensationAutomatic Exposure Modes Page Manual Mode Duplication Work and Photomicrography For Lenses or Accessories Without Automatic Diaphragms STOP-DOWN Exposure MeasurementFor Lenses with Automatic Diaphragms Multiple Exposure Photography Unmanned Photography Self-TimerFollow this procedure Infrared PhotographyEyepiece Shutter Flash Photography Accessory Shoe 78 and Sync Terminal A,M SB-7E Nikon FA/Speedlight Combination ChartCLOSE-UP Photography Electronic Flash Units AccessoriesSpeedlight SB-15 Speedlight SB-16BMotor Drives Motor Drive MD-15Motor Drive MD-12 Data Back MF-16 MiscellaneousTo change focusing screens, follow this procedure Interchangeable Focusing ScreensType Name/style Features Focusing Screen Selection GuideLens Hoods FiltersCable Release AR-3 Anti-Cold Battery Pack DB-2Right-Angle Viewing Attachment DR-3 Eyepiece Magnifier DG-2What is EV? EV ChartEV Range of the Camera EV chart with 50mm f/1.4 lens Tips on Camera Care Page About the Liquid Crystal Display LCD Tips on Battery USESpecifications Exposure Self timerCompensation Film speed rangeDimensions Accessory shoeWeight body only Depth-of-fieldNippon Kogaku K.K Nikon FA
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