please correct my text

[jctgf]

"The idea is to buy a professional camera that is not very expensive and 3 sets of lenses: the first set would be used for macro pictures; the second one would be for middle distance pictures and the third for long distance.
The overall focal difference between the closest pictures and the furthest one would have to be around 12 times.
This equipment would provide me conditions of taking good pictures whatever the situation is."

could you correct the text above, please?
how would an average native write it, please?
thanks.

 

[curmudgeon]

please correct my text
"The idea is to buy a professional camera that is not very expensive and 3 sets of lenses: the first set would be used for macro pictures; the second one would be for middle distance pictures and the third for long distance.
The overall focal difference between the closest pictures and the furthest one would have to be around 12 times.
This equipment would provide me conditions of taking good pictures whatever the situation is."

The plan is to purchase a mid range SLR camera which will provide professional results. It will require three lenses to cover all eventualities: a macro lens for close up work, a mid range lens for portraiture and a telescopic lens for distant subjects. Ideally these three lenses would cover all the necessary focal lengths.

This basic equipment would enable me to take acceptable images under all conditions.