Help identify the problem

Thought this was a cal mag deficiency but now I'm not sure any help would be appreciated

looks like it could be bug damage to me, have you checked the under sides of leaves with a loup

Seeing similar symptoms from something called leaf spot....I would for sure check under leaves and look close for bugs too.

Septoria Leaf Spot ( Something along this lines )

Septoria leaf spot is a soil-borne fungal disease that only infects tomato leaves and stems. The spots enlarge to 1/8-inch in diameter and are distinguished by a dark brown edge with a white or gray center. As the disease develops and more leaf spots develop, the areas surrounding spots will turn yellow causing leaves to wither and die. The disease spreads from the older leaves upward and can totally defoliate a plant in a short period of time. Defoliation can severely inhibit yield and lead to sunscald injury and fruit cracking. If tomato plants become infected with Septoria leaf spot early in the growing season, plants can become 100% defoliated before fruit set.

here a thread over at IC https://www.icmag.com/ic/showthread.php?t=184996

Looks fungal. Cercospora?

More airflow/spacing, and you'll need a fungicide.

Thanks a lot for the info guys I'll let you know which direction we go in

So upon a close inspection the problem is definitely a bug issue. What I found (sorry no pics) are these tiny white things that look like a tiny fleck of rice they looked like they were attaching to the sun leaves.
Any ideas on what they are and what to do before I lose these plants