Losing Focus When Zooming In And Out

When I change ortographic camera size it seems to lose focus. It looks different in gallery and in unity. This is in gallery.

And this is in Unity.[97075-unity.png |97075]

I am using unlit/texture shader and i have turned off everything in mesh renderer.

In the import menu for the texture, set the filter mode to point, rather than bilinear/trilinear. Unity likes to filter images at a per pixel level to get smooth results, but if you are using a low resolution texture on purpose filtering is not something you want.