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Latest Review Posted SMC Pentax-FA 24-90mm F3.5-4.5 AL [IF]
The advent of the K-1 changes everything in Pentax photography. Reviews of all of the Pentax lenses really need to be redone in light of the full frame power of that camera. Putting a film lens on the K-1 does not make the lens suddenly look bad; the K-1 allows the lens to fully show everything it can do. Color 35mm film - at its finest - could only resolve about 50 line pairs per millimeter. That method of measuring resolution fell into disuse when digital camera appeared because - up until sensors reached about 9 megapixels - 35mm color film could simply out resolve digital cameras, and the digital industry hid that fact by changing to lines per picture height - so that film and digital couldn't be compared easily. With the advent of the K-1 - Pentax has a camera which can capture a theoretical maximum of about 110 lp/mm. In other words about twice what the finest 35mm color film could resolve. More to the point the low noise, color accuracy, and wide dynamic range of the K-1 also far exceed the best of color film. The result: simply more accurate pictures than could ever be produced with color film. The job of any lens is to provide the sensor (either film or digital) with information to be captured. The FA 24-90mm f3.5-4.5 lens exceeded the performance capability of any 35mm color film as a sensor; it provided higher resolution, more dynamic range, and more accurate color than any color film could record. It still exceeds any known digital sensor in terms of its dynam...



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