Image Quality and Size

Making Effective Use of Memory

Together, image quality and size determine how much space each photograph occupies on the memory card.

Image Quality

The D70S supports the following image quality options (listed in descending order by image quality and file size):

Photographs Taking

Option FormatNEF (Raw)

(RAW) NEF

JPEG Fine(FINE)JPEG Normal(NORM) JPEGJPEG Basic(BASIC)

NEF+JPEG

NEF+

Basic

JPEG

(RAW BASIC)

 

Description

Raw 12-bit data from CCD are saved directly to memory card in compressed Nikon Electronic Image Format (NEF).

Fine image quality, suitable for enlargements

Low

Compression

or high-quality prints.

(1 : 4)

 

Normal image quality, suited to most ap-

Medium

 

plications.

(1 : 8)

 

Basic image quality, suitable to distribution

High

ratio

by e-mail or use in web pages.

(1 : 16)

Two images are recorded, one NEF (RAW) image and one basic-quality JPEG image. Image size ( 43) automatically set to L; JPEG image is 3,008 × 2,000 pixels in size.

Size and Quality Image—
NEF (Raw)/NEF+JPEG

NEF images can only be viewed using Nikon Capture 4 version 4.2 or later (available separately; 191) or PictureProject. When photographs taken at NEF + JPEG Basic are viewed on the camera, only the JPEG image will be displayed. When photographs taken at NEF + JPEG Basic are deleted, both NEF and JPEG images will be deleted.

File Names

Photographs are stored as image files with names of the form “DSC_nnnn.xxx,” where nnnn is a four-digit number between 0001 and 9999 assigned automatically in ascending order by the camera, and xxx is one of the following three letter extensions: “NEF” for NEF images, “JPG” for JPEG images, and “NDF” for Dust Off ref photos ( 166). The NEF and JPEG files recorded at a setting of NEF + JPEG Basic have the same file names but different extensions. Images recorded at an Optimize image > Color mode setting of II (Adobe RGB) have names that begin with an underbar, e.g., “_DSC0001.JPG” ( 56).

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