Nikon D2H manual Image Quality and Size, Making Effective Use of Memory, Option

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 D2H supports the following image quality options (listed in descending order by image quality and file size):

Option Description

NEF + JPEG Two images are recorded, one NEF (RAW) image and one fine-quality

Fine JPEG image.

NEF + JPEG Two images are recorded, one NEF (RAW) image and one normal-qual- Normal ity JPEG image.

NEF + JPEG Two images are recorded, one NEF (RAW) image and one basic-quality Basic JPEG image.

Raw 12-bit data from the LBCAST image sensor are saved directly to NEF (Raw) the memory card in Nikon Electronic Image Format (NEF).

Images are saved in uncompressed TIFF-RGB at a color depth of eight TIFF (RGB) bits per channel (24-bit color).

Images are saved in JPEG format at a compression ratio of roughly JPEG Fine 1 : 4.

JPEG Images are saved in JPEG format at a compression ratio of roughly Normal 1 : 8.

Images are saved in JPEG format at a compression ratio of roughly JPEG Basic 1 : 16.

NEF (Raw)/NEF+JPEG

File compression for NEF images is controlled from the Raw compression menu ( 44). The following options are available:

•Comp. NEF (Raw): NEF images are compressed using a “lossless” algorithm that re-

duces file size by approximately fifty to sixty percent without affecting image quality (46–47).

•NEF (Raw): NEF images are not compressed.

NEF images can only be viewed in the software provided with the camera or in Nikon Capture 4 (223). When photographs taken at NEF + JPEG Fine, NEF + JPEG Nor- mal, or NEF + JPEG Basic are viewed on the camera, only the JPEG image will be displayed. When photographs taken at these settings are deleted, both NEF and JPEG images will be deleted.

Taking Photographs—Image Quality and Size

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