The first Ricoh digital compact GR
The first Ricoh GR 8mp digital model launched in 2006 was based on the design of an earlier compact GR-1 fixed focal length lens film camera. The GRD's excellent 28mm (35mm format equivalent.) f/2.4 lens and miniature CCD sensor combination proved very capable, fitting neatly and ergonomically into a tough magnesium outer shell.
Orginal GR with accessory optical viewfinder and 21mm lens adapter and hood
Version two with a 10.1mp sensor was launched in 2007. Like its predecessor, The GR II camera is only 25mm thick (1 inch approx.). Its lightweight durable body casing is also manufactured from die-cast magnesium alloy able to withstand twists, pressure and shocks. Antimagnetic shielding also suppresses electromagnetism that can cause the generation of image noise. In every detail — reliability, high-class impression, portability, sturdiness and image quality — Ricoh has aimed at creating the ultimate in terms of well balanced body design.
Tough magnesium alloy body shell used for all three GRD models
The GRIII with a marginally increased body shell size of the same material, a new CCD sensor and new lens with a two stop increase in maximum aperture to f/1.9, replaced the GRII late in 2009. The lens cell configuration also changed from 6 elements in 5 groups on the GR II to 8 in 6 on the new model.
Special edition of the first Ricoh GR digital
The sensor in the GR III measures approx 7.6mm X 5.7mm ( 7.2mmX5.4mm for the GR II) with a pixel density of 23mp/cm2. Electrical and chroma noise is well supressed by a new GR III engine at ISO sensitivities from 64 to 400. The 10mp effective spec of this device also allows reasonable scope for image cropping.
Third version of the GRD with new and faster lens in slightly larger body shell
By increasing the LCD screen size from 2.7 to 3 inches and upping its resolution to 920,000 dots, Ricoh's engineers needed a larger body shell to maintain ergonomic scaling of operating controls on the back panel. The 1.6 mm and 1.8mm increase in body length and height plus a hike of 20 grams in weight make a well balanced and easily manipulated tool.
Ricoh to Go! - Update
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