Using digital photography to make passport and visa photos involves more than just photographing subjects with a digital camera. That is just the first step, the image capture step, of a multi-step method that also includes image display and image printing using computer and printer equipment. Each of these mechanism — can influence either positively or negatively — the final printed photo that will be submitted for the passport or visa.
Digital cameras are principally characterized by their image resolution or mega-pixel capacity; from low-resolution (less than 1 mega-pixel) to high-resolution (greater than 1 mega-pixel) to superior high-resolution (4 mega-pixels or more).
Cameras with a straight electronic camera-to-computer interface are preferable to those requiring the use of an external memory card. Data transfers will occur much quicker and allow for verification of a good image being stored in the computer. If a retake is required because the subject blinked or moved, it would be more suitable than taking several shots to be sure of a good one and then downloading them via the memory card.
To ensure that a high quality print is obtained, the image can be transferred to disk and taken to a photo lab to be printed. The equipment found in a photo lab will normally be capable of producing quality photos and undergoes the frequent calibration and maintenance required for consistent results.
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