Q & A: Should I be concerned about high ISO performance in a DSLR?
Question
Most digital camera test reports on the Internet devote several pages to image quality at ISO 1600 and above. Now that I’m ready to trade up from a digicam to a DSLR, should I be really concerned about high ISO performance? When I was shooting with a Nikon F-601, I usually used ISO 100 to 400 film, and on a few occasions, Fujicolor 800, so why is ISO 3200 so important now? S.W.
Answer
Your question makes a valid point, S.W. In conventional photography, few photo enthusiasts ever used the very “fast” films. In fact, most retailers did not even stock print film faster than ISO 800 or slide film faster than ISO 400. But since digital cameras include built-in high sensitivity options — up to 6400 or even to 25,600 in some cases — this aspect receives a great deal of attention. And that’s not surprising, since high ISO quality is one obvious method for comparing various cameras. (more…)