2 using the same NIKON D70 from configuration to version of the firmware, the comparison of SIGMA 30mm F1.4 EX DC HSM and NIKON Ai AF Nikkor 28mm F1.4D it did. The string of the left side the string of SIGMA 30mm F1.4 EX DC HSM and the right side is the image of NIKON Ai AF Nikkor 28mm F1.4D. Also all image JPEG NORMAL ISO200 WB: The clouding heaven, in addition it is finished, as for configuration with Color configuration: Mode? It has made a (sRGB). In addition, with all manual exposures with opening contraction (F1.4), it photographed the image to which SIGMA 30mm and Nikkor 28mm correspond at identical shutter speed. As for 1 2nd set image, for AF it locks in the center of the image, cuts the shutter that way. The 3rd set (flower of lotus) image, getting near to the point of the petal to the ? margin which with AF combination is burnt
As for the use impression of SIGMA 30mm, the air where the focusing ring is too heavy a little does, but in the other aspects it was something which it can be satisfied. Angle of view and quite to be (Is not lens where it can approach also 28mm particularly, but) it is regrettable not to be able to approach excessively. Concerning being taken in general, you can say that SIGMA 30mm is sharper, but being With SIGMA 30mm of the CANON mount which is sold first, the circular becoming dim of boiled fish paste type is pointed out, but even with the Nikon mount (if you use with D70) shape of the circular becoming dim is strange (last image).