"There aren't enough lenses" is an often heard complaint about the Sony NEX system, usually lobbed at the platform by users of the more established micro 4/3's system which unsurprisingly has more lenses available today.

Another common complaint - the Sony kit lens isn't good enough, a charge usually lobbed by someone who hasn't used it.

In fact in the middle of its focal length the kit zoom isn't bad at all.

The attached 100% crop and scaled down 1200 pixel representation of the same provides an example of the 18-55mm Sony E mount kit lens going up against the acclaimed Zeiss ZM 25mm f/2.8 Biogon. For good measure I've included a test sample, taken on a different day, using that same Biogon lens on the Ricoh GXR Mount A12.

Unless nitpicking, on the NEX-5N the Sony kit lens compares well enough with the Zeiss Biogon. Not bad for a kit lens. The camera itself, not the lenses, is responsible for the overall softness when compared to the GXR and in particular edge and corner softness or smearing will be found with some wide angle lens designs on the NEX.

On the GXR - no question, I want the Biogon. This camera, like the Leica M9 costing many thousands more, has no anti-alias filter fronting the sensor and it turns out this returns more than just increased accutance but improves the behaviour of wide angle lenses on cameras with short back focal lengths like the Ricoh GXR or Leica digital M cameras.

If only the NEX were anti-alias filter free...