Im­age qual­ity

When you’re af­ter the very best qual­ity, ev­ery bit counts

NPhoto - - Nikon Skills -

Im­ages can come out of your cam­era in two forms: JPEG and RAW. All cur­rent Nikon D-SLRs apart from the D3XXX se­ries are ca­pa­ble of shoot­ing 14- and 12-bit RAW files, while the D3XXX se­ries can only shoot 12-bit ones. Th­ese dif­fer­ent file for­mats have vary­ing amounts of colour in­for­ma­tion, called colour depth. There are three colour chan­nels: red, green and blue, so an eight-bit colour depth gives a to­tal of 16.7 mil­lion colours (256x256x256), while a 14-bit RAW file gives 4.4 tril­lion colours (16,384x16,384x16,384).

When you have an im­age open in a pro­gram like Pho­to­shop, you have two choices of colour depth: eight bits or 16 bits; the greater your colour depth, the bet­ter the qual­ity of your im­age. If you shoot in RAW, you’ll keep the higher qual­ity by edit­ing im­ages in 16 bits.

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