Tomato Plants - Leaves going silvery brown?

[nrmartin8798]

A lot of my tomatoes seem to have got silvery but brown leaves on them now - the leaves that do get it seem to wilt a bit but the newer growth seem's to be ok although some new leaves also have this at the tip of them...I originally thought it was sun scorch but the new leaves haven't been out in the direct sunlight, just in a cold frame?

Any help would be appreciated!

[Jungle Jane]

I think it is sun scorch,nothing to worry about it’ll make a lot of new leaves that’ll grow normally as the plants are hardening up to the sun & cold,leaves are very tender when young.

[smallblueplanet]

Or wind burn when too tender/young?