Pentax K-3 with DA50 f1.8
Aperture f2.8
Shutter speed 1/250 sec
ISO 160
In camera JPEG setting at Natural
Extra Sharpness at 0 value
NR Off
SR on
Here is one with the Pentax K-5 with Tamron 28-75 f2.8
At approx 100% crop
Pentax K-5 with Tamron 28-75 f2.8
At 63mm
Aperture f2.8
Shutter speed 1/160 sec
ISO 100
In camera JPEG setting at Natural
Fine Sharpness at 0 value
NR Off
SR on
One doesn't have to dispose their K-5 classic in persuasion of image sharpness. If you are a K-5 classic owner, who just wants to get great sharp pictures. Consider investing in a better lens. Hence the Tamron 28-75 is not the sharpest lens from Tamron to begin with. Try getting a Pentax Limited Primes and be prepare to fall in love with your classic K-5 again.
Now, it doesn't mean that the K-3 is not a better camera than the K-5 classic. In fact, it is significantly better than the K-5 classic in other aspects. Even so, the K-5 classic still holds its ranking for one of the best APS-C camera for its price. Sensor and price wise, it still beats the crap out of most of the camera out there that cost much more. Thanks to the depreciation of Pentax camera, a person can find a good K-5 classic for around USD500 or RM1,500 here in Malaysia.
Cheers and take a break
