highdesertmesa
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qqphot wrote:
I have a v5 summicron and have used the Voigtlander too. The summicron is of course a very good lens but it flares badly in a lot of lighting situations, and has quite significant illumination falloff toward the corners. It's also very heavy and in many copies the focus ring moves a bit jerkily, and the aperture ring rattles. It's strong points are an almost complete absence of distortion and extreme sharpness. Especially on film, it's a lovely thing if you can control the flare.
The CV 50/1.5 II doesn't need such handholding, is as sharp or nearly so, has a bit more distortion (fully correctable in lightroom if you're shooting digital) and costs a fraction as much. Its flare performance is *much* better and it shows less focus shift. If I could have only one or the other I'd pick the Voigtlander, honestly. I keep the Summicron (one of the limited edition screwmount ones) because it's simply the best lens you can put on a Barnack Leica. ...Show more →
What camera are you using the 50 Cron v5 on? On a BSI sensor, the vignetting is lower than many CV lenses I've used like the 50 APO.
Yes, it flares, but it's not the kind that ruins contrast across the entire image like the CV 35 1.5 did.
240g is heavy? It weighs more than the CV 50 1.5, but that doesn't mean it's heavy. Is your special screw mount edition made of brass? The brass versions are indeed heavy.
I've had four copies of the 50 Cron v5, never once an issue with the focus ring or aperture ring. I've had varying degrees of tight vs loose aperture rings, but they never rattled, one was simply easier to move than the others. What you're describing sounds like what I might expect to find on a well-worn copy but definitely not on a new one. Maybe this is again tied to the specific special edition copy you have. Three of the four 50 Cron v5 copies I've owned had zero focus shift. One had focus shift at infinity, and I returned it as defective/out of spec. The replacement copy I bought was perfect.
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