Is this early blight or something else

[madddawg]

Ive got it really bad on my celebrity's and not quite as bad on my other tomato varieties, Better Boys, Brandy wine Pink, Cherokee Purple, Kentucky Yellow Beefsteak and Big Cherry. But definitely its here. the celebrity's are planted in the old part of the garden and the rest are planted in a new part. So that might be a factor also. I did have this problem last year and probably the year before.I treated once so far with some stuff recommended by a nursury called Hi Yield. Its active ingredient is manganese ethylenebisdithiocarbamate. It says treat every 7 to 10 days not to exceed 4 time per year. ( I put on with a sprayer) Is there something more natural to treat this problem I have. I looked at some of the other threads here and none of them really look like this in my opinion. Thanks