In general question. assuming everything is good with the photo to be used. if i want the same photo two different sizes, very different, one to be lets say 1" x 2" and one to be 18"x 24".
would i use the same dpi for both OR low dpi for the small one and high dpi for the large one OR vice versa.
Basically i am wondering if there is a rule of thumb when it comes to the size of the pic to be engraved.
smaller the size you want less dpi, etc.
just curious.
thanks chad