No, postworking in that kind of a situation is dishonest.
With lighting... I will always make a note on the promo for paid products, what lights were used.
Like that image... I try to note whether I used standard DS lights, Advanced Ambient lights, Uberenvironment, etc...
At least that way, the customers have an idea of what to expect from that light, and that if they use a different type of lighting they might get different results. But I also try to do pictures that use different light rigs, so folks can see what things look like depending on the light types in use.
But postworking a promo image is just not ethical; they need to know what they're buying. And if I find a vendor that has postworked their images, and I find out the hard way (as in after I've bought the product and rendered it), I never buy from that vendor again.
With lighting... I will always make a note on the promo for paid products, what lights were used.
Like that image... I try to note whether I used standard DS lights, Advanced Ambient lights, Uberenvironment, etc...
At least that way, the customers have an idea of what to expect from that light, and that if they use a different type of lighting they might get different results. But I also try to do pictures that use different light rigs, so folks can see what things look like depending on the light types in use.
But postworking a promo image is just not ethical; they need to know what they're buying. And if I find a vendor that has postworked their images, and I find out the hard way (as in after I've bought the product and rendered it), I never buy from that vendor again.