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Here are a couple of portraits compared with a D800 + 50mm f1.4 AFS (at f4.5). V1 shots wide open at f1.8.

 

http://www.flickr.com/photos/[email protected]

http://www.flickr.com/photos/[email protected]/

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http://www.flickr.com/photos/[email protected]/

http://www.flickr.com/photos/[email protected]/

 

I don't think too many people can tell which is which, in terms of sharpness at least.

 

I did some basic tests and found that downsized to 10MP the V1 + 18.5 is sharper for wide open comparisons. (Also the case for 10mm f2.8 on V1 vs 28mm f2.8 AFD on D800.)

 

And as a side note I haven't found any F-mount lens that is great on the V1.

 

So whilst the FT-1 adapter maybe a good selling point, in practice I've found that only 1-mount lenses perform well on the 1" sensor.

 

 

Interesting comparison.

Sharpness may be similar, but I find the bokeh of the 18.5 very unpleasant (very busy).