Depth of Field came back in Stress Test 53, but it still has issues. Especially with the M4A1, that I've tested so far, it blurs out the rear, and sides of the gun,
but it also blurs out the surroundings, making it hard to view,, when Aiming down the sights.

This is with the carry handle, no carry handle (only front sight), and M65 Red dot maybe?

It looks very bad, and needs to be fixed as it's hard to tracker, and generally see when ADS
It's on other firearms too I believe (I only tested with the other gun UMP45), like the UMP, but it's not as bad as M4A1.
It can exist on AK, SVD, MP5, FNX, etc.