jhapeman
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 p.1 #1 · Lens Test: Voigtlander Nokton 50mm f/1.1 | |
I don't like to test every lens, and probably only do this once or twice a year, but today I felt motivated. There is a lot of interest in this lens, particularly for the E-P1. I am a fast-glass junkie, so my alt glass for the E-P1 will all be fast glass like this. Really fast glass often is less than ideal wide open (witness the Canon EF 50/0.95 and the "dreamy look"), but I have always enjoyed learning how to use the effects to taste. One of the nice things about the micro-Four Thirds format is the smaller sensor just dealing with the sweet spot of the lens. You can see that here.
Observations: There is halation that reduces contrast and gives a bluish cast with this lens wide open. The L-R Deconvolution routine in Raw Processor was useful to clear that up a little, but you can still see it here. A little more contrast can help. Bottom line, the lens is *very* useful wide open. However, at f/1.4 the halation disappears and the images look great. By f/2.8, even the extreme corners are looking very good. Contrary to what you might imagine, the images continue to sharpen up, reaching peak sharpness at f/11. By f/16 you can see some very slight diffraction softening coming in.
The lens was obviously on my Olympus PEN E-P1. The camera was set at ISO 200, tripod mounted, anti-shock used (equivalent to a shutter delay and lock up combination to reduce any vibration). The images were converted with Raw Processor with the only adjustment being a round of sharpening using a R-L Deconvolution of 80,10.
The image below is a full-sized composite of 100% crops, 600x600 pixels. Beware, it's a 3.5MB jpeg file, so you want broadband to take a look at this one.
Large Comparison Image Voigtlander Nokton 50mm f/1.1
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