Nikon D70SBODY manual Image Quality and Size, Making Effective Use of Memory, NEF Raw/NEF+JPEG

Image Quality and Size

Making Effective Use of Memory

Together, image quality and size determine how much space each photo- graph 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):

Taking Photographs

Option	Format
NEF (Raw)	NEF
(RAW)
JPEG Fine
(FINE)
JPEG Normal	JPEG
(NORM)
JPEG 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.

—Image Quality and Size

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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