Since I got my Sony Nex-3 a couple of weeks ago I have been eager to try lenses from other manufacturers on it. I really love using fast lenses and the original Sony E-mount lens selection didn’t serve me well in this respect.
A couple of days ago I eventually got two Kipon adapters: One to use Nikon AF-lenses on the Sony and the other to use Leica M-mount lenses on it.
After doing a couple of shots with my Nikon lenses (Nikon AF-D 35/2, AF-D 50/1.4 and AF 85/1.8), I was sort of disappointed, especially shooting wide open. So I decided to do some testing, not on test charts, but using a real world subject – the view from my living room.

Here are the results. I let you form your own opinion.
I will do some testing with “real good” Leica M-lenses in a couple of days and see if it gets better – I really hope so. So stay tuned and follow me on twitter to get informed as soon as the new test is online!
All pictures are from JPG:
First there’s a 35mm comparison between the Nikon AF-D 35/2 and the Sony 18-55/3.5-5.6 at 35mm setting.
Click here to download the 100% comparison at 35mm.
Then there’s a 50mm comparison of the Nikon AF-D 50/1.4 and the Sony Kit zoom at 55mm.
Click here to download the 100% comparison at 50/55mm.
Finally here’s a 85mm comparison of the Nikon AF 85/1.8 and the M-mount Konica Hexanon 90/2.8.
Click here to download the 100% comparison at 85/90mm.
I know neither the three Nikon lenses nor the Konica lens are the best lenses in the world. But the Nikons worked quite well on the Nikon APS-C and Nikon FX-cameras I’ve used. I never saw this sort of bad behavior wide open before. I guess it might be the Kipon adapter.