First off, a HUGE thank you to Mike Sims for sending me this brand new optic to test out–especially for allowing me to shoot with it for so long. I can’t do much to thank him except to suggest you check out his Flickr, 500px, and Google+ accounts! Click here for my first impressions of the lens.
IMPORTANT: If you are unfamiliar with my lens review style, please reference this post first!
f/.95. Wow! It goes without saying, but that’s fast for ANY lens. Technically, this aperture delivers over four times as much light to a sensor as a standard 50mm f/2. But let me get this crucial fact out of the way, the Noktor HyperPrime 50mm f/.95 does not give a photographer ultra low-light capabilities as much as the aperture value suggests. Any additional light-gathering power stops at around f/1.2-1.3; wider than that, and an APS-C camera simply doesn’t meter any faster shutter speeds. I have read on multiple forums that this isn’t an uncommon phenomenon. Some photographers, when using a lens with an f/1.2 maximum aperture report that the camera’s metering doesn’t change even from wide-open to f/1.4. A reader has informed me this is due to a documented condition where a sensor’s microlenses cannot transmit any more light to each pixel than that microlens’ f/stop, regardless of the larger lens’ aperture. Keep in mind that in regards to depth-of-field, f/.95 is definitely true–we’ll examine that later.
The Noktor is a lens that doesn’t exactly establish itself as a normal prime: on APS-C, it gives a field of view similar to that of a 75mm f/1.4 lens on 35mm film (if such as lens has ever existed?). In other words, the Noktor is a short portrait prime capable of extremely pleasant subject separation even at a distance. In all honesty, images shot at f/.95 really have that “full-frame” look simply because of this “pop”. But does this very shallow depth-of-field advantage come at a cost? Let’s find out!
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Matthew Durr Photography 