32 DECEMBER 2015^ http://www.asianphotographyindia.com
Chromatic Aberration
We used a lens testing software, QuickMTF for the chromatic
aberration test of the four lenses.
The Sony DT 55-200mm F4-5.6 SAM exhibited the least amount
of chromatic aberration. Tamron AF 18-200mm F/3.5-6.3 Di II VC
came in second and was followed by Canon EF-S 55-250mm f/4-5.6
IS STM. Pentax DA 50-200mm F4-5.6 ED WR had the highest
chromatic aberration amongst four lenses.
Canon EF-S 55-250mm f/4-5.6 IS STM
Canon EF-S 55-250mm f/4-5.6 IS STMSony DT 55-200mm F4-5.6 SAMPentax DA 50-200mm F4-5.6 ED WR
Pentax DA 50-200mm F4-5.6 ED WRTamron AF 18-200mm F/3.5-6.3 Di II VCTamron AF 18-200mm F/3.5-6.3 Di II VCColour Reproduction
Tamron AF 18-200mm F/3.5-6.3 Di II VC reproduced colours
most accurate to the actual scene. The output also had the best
sharpness and contrast of all the lenses. This was followed by Sony
DT 55-200mm F4-5.6 which also gave a sharp image and seemingly
good colour reproduction. The Canon EF-S 55-250mm f/4-5.6 IS
STM exhibited good sharpness but the image had yellow-ish tinge.
Pentax DA 50-200mm F4-5.6 ED WR did not reproduce accurate
colours, and the image lacked sharpness at 100% zoom.Sony DT 55-200mm F4-5.6 SAM