DA 55-300 vs DA* 300 f4

Started Sep 16, 2013 | Discussions thread
paulkienitz
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Re: DA 55-300 vs DA* 300 f4
In reply to veroman, Sep 17, 2013

veroman wrote:

I suspect that the copy of the 55-300 used for the above was a poor sample.

I suspect exactly the same thing, because I've taken a whole lot of 100% crops at 300mm and they're often way better than that. I've also used it with the Q.

And I don't think my copy is exceptionally perfect, either... the amount of CA is measurably different on the right and left sides.

Mine does significantly better and more closely resembles the 300mm prime ... though it's certainly not as good as the 300mm prime.

I wonder what it is with DxO's tests? This is far from the first time we've seen them come up with results that don't match what others see.

 paulkienitz's gear list:paulkienitz's gear list
Pentax Q Pentax K-3 Pentax smc DA 55-300mm F4.0-5.8 ED Pentax smc DA* 300mm F4.0 ED (IF) SDM Samyang 8mm F3.5 Aspherical IF MC Fisheye +4 more
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