[sharky]

The brown spots you can see are spreading to other leaves of separate tomato plants, other than this they appear to be healthy, they are kept in my greenhouse.

What could it be/how do I solve it? :?

[Big Jen]

Looks a bit like the leaves have got wet and then scorched in the sun. I am no expert though.
BJ

[Motivator]

Looks like that to me as well.

[gobs]

Take them of, just in case, plant will also be more airy, but as the others say rather looks like some sort of physical damage.

[sharky]

After some extensive research I have diagnosed it as leaf mold, plus it would also fit as the atmosphere og my greenhouse can be very damp and humid.

Does this sound right?
Anyone have their own ways of dealing with this problem?

[Jodie A]

Do you snoke?  Might sound daft but touching toms with faggy hands can lead to a virus.

[gobs]

After some extensive research I have diagnosed it as leaf mold, plus it would also fit as the atmosphere og my greenhouse can be very damp and humid.

Does this sound right?

No. Have you any brown mould growing on the underside of leaves? which you would have if that were the case.

[sharky]

Jodie - No I don't smoke, but I guess that doesn't ensure the plants are Mosaic virus free, can anyone eliminate the Mosaic Virus for me?  :?

Gobs - I'm not sure what the brown mold underneath the leaf looks like, although the same brown spots are visible from underneath the leaf, the spots are clearly dead parts of the leaf and are semi transparent.

If I don't treat them I know they will all die, someone help.  

[gobs]

So they don't have mould and don't have virus, just stop worrying.

[Jodie A]

Looks like water splash/scorch then if no other symptons obvious.

They should pull through

[peterjf]

deffinately sun burn , your toms need to be sheilded from direct sunlight and when watering just water the bottom of the plant

[WhippetMaster]

Sun burn, had the same on mine and thought it was Mosaic virus. Cured it by giving a light tomato feed, stopped overwatering and painted shading on my greenhouse.

Fully recovered!!!