The D1 features a large 23.7 x 15.6mm 2.74-megapixel CCD for ultrahigh-definition 2,012 x 1,324-pixel images. Superior results are further ensured by the infrared ray (IR)-cutting, ultra-thin lithium niobate (LiNB) Low-Pass Filter located directly in front of the CCD, and optimal signal processing delivered by Nikon's original algorithm. The D1 provides 3D Digital Matrix Image Control (3D Color Matrix Metering, TTL White Balance and Tone Compensation) with a 1,005-pixel CCD for optimum results. The camera's three intelligent exposure metering systems 3D Colour Matrix, Centre-Weighted and Spot Metering; and three auto exposure modes Programmed, Shutter-Priority and Aperture-Priority, together with exposure compensation and automatic bracketing functions, offer precise, comprehensive exposure control. 3D Multi-Sensor Balanced Fill-Flash for D1 controlled by five-segment TTL Multi Sensor, possible with the new Speedlight SB-28DX, and versatile Flash sync modes Front-Curtain Sync (normal sync), Red-Eye Reduction, Red-Eye Reduction with Slow Sync, Slow Sync and Rear-Curtain Sync, add to the D1's versatility. In order to give experienced users more control over quality, the D1 incorporates versatile image quality modes. Uncompressed Image provides users with three options: Raw (12-bit), TIFF YCbCr (8-bit) and TIFF RGB (8-bit). Compressed Image offers JPEG-baseline-compressed approx. 1/4, 1/8 and 1/16 and monochrome mode. Add to this the four-step Sensitivity Control (ISO equivalency 200, 400, 800, 1,600) provided. * Optional software is needed to reproduce Raw or YCbCr-TIFF images; "Nikon Capture" for Raw images, "Nikon View DX" for YCbCr-TIFF images. The D1's quick start and short shutter release time lag (approx. 0.058 sec. from the time the shutter release button is lightly pressed) give users the speed to capture once-elusive moments. Super-fast data processing made possible by the newly developed ASIC enables consecutive shooting at 4.5 fps.