Logo difference in sharpness on different devices


I made a site for a client. He sayd that the logo is less sharper on his desktop than on a mobile or tablet. When i look on my mobile, tablet or iMac is see that the logo is the same on all devices. So what could be the problem http://stichtingkimg.nl


Is his desk top Retina display?

No, it is not. So the plroblem is his display? I have an iMac without Retina, i have no problem.


A logo can not be in such a dimension.
300x300 should be enough :wink:
Perhaps that’s why you have a problem

Thank you. I will decrease the size.