Lying it seems is easier to define because it contains malice meaning that we tell a lie deliberately and with the aim of deceiving. But here the French complicate things because they say that error and illusion is a kind of lie since it is not the truth. I referred to the above definitions of course not to end up adopting any of them but to make it clear that the quotation of the two words truth and lie counts more than what we are used to doing in our daily lives by bringing the truth against the lie where one word annihilates and negates the other. The problem certainly arises from the moment that at least in our culture there is no given and absolute content for the word truth.
Even scientific truths are known to be meteoric until e-commerce photo editing the next scientific truth that overturns them. If for the world once the Earth was flat and not round this was the truth of that time. And the lie was to say it was round. However since the space that concerns us in this case is that of art the above terms acquire a different content. One thing that happens to me often is labeling appreciating a piece of art as fake. And especially nowadays this happens to me often. The work then looks made and not created. And by the word construction is implied something not artistically true.
But just as the concept of truth in science implies something that is experimentally proven based on until then scientific data and just as revealed religious truth is based on the Word of God we should also look for the meaning of artistic truth. I think we could claim that there are two sources that determine the content of truth in art. The first has to do with the art itself in general but also with its specialized form and the second with the specific artist. The first is defined partially and definitely with unclear boundaries by the role we attribute to the artistic event in general as well as by artistic event the photographic artistic event as this emerges from the very nature of the medium but also from the work of the great creators who preceded them.