More Details on the VM 35/1.7 Ultron
More Details on the VM 35/1.7 Ultron
The new VM 35/1.7 Ultron:
It's very sharp, even wide open, has nice bokeh, short min focus distance, is practically flare proof and has very little CA and distortion - we know this from other reviews and I can confirm all of it. Here are a couple of notes on things I wanted to know but couldn't find out before I bought it for use on my M:
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best hood and M frameline intrusion: I use a simple empty 46mm filter ring and am satisfied. No vignetting with filter plus empty ring. Pictures of camera and framelines (click for larger size):
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Focal length: it turns out to be 6% longer than my v3 Summicron, meaning a little more than 37mm, actually. B+W background is a Summicron picture, overlayed with an Ultron picture, using the same tripod position.
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DOF: I cann't explain this physically, but - at the same f-stop - the Ultron has a little more DOF than my v3 Summicron. This is not a weakness of the Ultron, but a feature of the Mandler lens, I believe. Notice also the slight shift, even for the Ultron:
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Field Curvature: the Ultron has a slightly curved focus field. Which makes it easier to correct for the cosine effect. I like this. Comparing a center min. focus shot (similar to above) cropped, with an off-centered shot:
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best price: currently you can buy a black copy in Europe (from good dealers in UK or Germany), excluding VAT and including shipping and US customs for less than US 700. That puts it into used ZM 35/2 territory, and at about half the price of a used Summicron Asph.
In a nutshell: Very cool lens for this price, technically the best 35mm I have used so far.
Roland.