I tried it with many different templates and systems liek warp , t3, gantry and ..
in the new version of K2 , the image is not center aligned and you need to go through lots of manipulation to do so.
is there any reason or am I doing sth wrong?

Hi Fotis.
You are right. it is related to template.
but it used to be like working on most templated. all images centered.
but on shaper template is not and gantry as well.
Here is one example which I used a margin-right:auto and margin-left:auto in the php file to make it alright.:
www.bahramabedini.com/en/photogram