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We have shown 4 different versions of the same image, the Obverse of a Gold Triple Unite Coin of Charles I.
In all four cases, we have cropped the image as closely as possible, and resized to 240 pixels wide, we have used 15% JPEG compression using Paint Shop Pro 7 to keep image files to reasonable sizes.
The coin was photographed using our Fuji S1 digital camera, using a Nikon SB29 ringflash, mode manual, aperture 32, shutter 1/90th. The background as for most of our coin images is a sheet of plain white paper. The camera white balance setting were naturally adjusted to this.
Raw image, with no adjustments.
Except for rotation and cropping.
After use of levels, adjust, auto in Adobe Photoshop
Probably the sharpest and most pleasant overall result.
After use of levels, adjust, white (right hand dropper) in Adobe Photoshop
Gives a brilliant gold colour to the coin, but slightly burnt out in lighter areas.
After use of levels, adjust, white (right hand dropper) in Adobe Photoshop, but changing background to white
Badly overexposed losing considerable detail on coin.