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Pentax K-7 User Manual

Pentax K-7
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29
Before Using Your Camera
1
A histogram shows the brightness
distribution of an image. The
horizontal axis represents brightness
(dark at the left and bright at the right)
and the vertical axis represents the
number of pixels.
The shape and the distribution of the
histogram before and after shooting tells you whether the exposure level
and contrast are correct or not, and lets you decide if you need to use EV
compensation and take a picture again.
1 Adjusting the Exposure (p.115)
1 Adjusting the Brightness (p.199)
Understanding Brightness
When the brightness is correct and there are no overly light or dark areas,
the graph peaks in the middle. If the image is too dark, the peak is on the
left side, and if it is too bright, the peak is on the right side.
When the image is too dark, the part to the left is cut off (dark portions with
no detail) and when the image is too bright, the part to the right is cut off
(bright portions with no detail).
Bright portions blink red on the monitor and dark portions blink yellow
when [Bright/Dark area] is O (On).
1 Playing Back Images (p.78)
1 Setting the Display for Instant Review (p.263)
Using the Histogram
Number of pixels
Brightness(Dark) (Bright)
Dark portions Bright portions
Dark image Image with few bright
or dark areas
Bright image

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Pentax K-7 Specifications

General IconGeneral
Megapixel15 MP
Camera typeSLR Camera Body
Sensor typeCMOS
Digital zoom0 x
InterfaceUSB
Digital SLRYes
Minimum processorP4
Camera shutter speed1/8000 - 30 s
Minimum storage drive space1024 MB
Compatible operating systemsWin Vista/XP Mac X10.3-10.5
FocusTTL
Auto focusing (AF) modescentre weighted auto focus, continuous auto focus, selective auto focus
Light meteringCentre-weighted, Spot
ISO sensitivity100, 3200, Auto
Light exposure modesaperture priority AE, manual, shutter priority AE
Display diagonal3 \
Display resolution (numeric)921000 pixels
Magnification0.92 x
USB version2.0
Product colorBlack
Scene modesself-portrait, Landscape (scenery)
Image editingcrop, resizing, rotating
Photo effectsVivid
White balanceauto, Cloudy, daylight, Fluorescent, Incandescent, manual, Shade, Tungsten
Camera playbacksingle image, slide show, thumbnails
Battery typeD-LI90
Battery life (max)7.3 h
Battery life (CIPA standard)1000 shots
HD typeNot supported
Motion JPEG frame rate30 fps
Maximum video resolution1280 x 720 pixels
Compatible memory cardssd, sdhc
Storage temperature (T-T)4672 x 3104 °C
Weight and Dimensions IconWeight and Dimensions
Depth72.5 mm
Width130.5 mm
Height96.5 mm
Weight670 g

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