Pentax DA 55-300mm sharper than premium lens, according to DxOMark

24 May

I was looking at some DxOMark figures, when I noticed this oddity: At 300mm, the Pentax DA 55-300mm (non-WR version was tested) is sharper than the top-line DA* 300mm. See the figure to become a believer:

Sharpness of Pentax DA 55-300mm vs. DA* 300mm

Sharpness of Pentax DA 55-300mm vs. DA* 300mm

So why would you buy a 1350 USD lens when you can have more fun for 390 USD? Well, the DA* lens has almost no distortion and is also relatively free of chromatic aberrations (CA) – see the next graph:

Aberration of Pentax DA 55-300mm vs DA* 300mm

Aberration of Pentax DA 55-300mm vs DA* 300mm

So if you’re looking for a lens to pair with the lovely new 1.4x Pentax teleconverter (yes, the specs are every Pentax photographer’s wishlist come true), as long as you have a scene that’s free of CA, you might want to give the 55-300 a go!

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