Cameras are so small these days, it could easily be hidden, obscured by other objects, or just so small the picture doesn’t show it. For example, a laptop’s web cam is smaller than your eye, and you can’t really see the guy’s eye well, so why do you expect to be able to even see the camera?

It’s not an illusion. It’s an artistic photograph.

Spoiler:how can the man take a picture without a camera? it may be magic / software effect

And… if you carefully connect a central point with its reflection, then the resulting line aims at a dark place across the room where a black camera could be easily camouflaged.

In the end I see nothing strange in that image.

Out of all of these, I would only really consider one of them to be an illusion, but they are all inspired by Escher, which I believe is why they are posted here.

Let me start by saying, I personally think the railing and column images are rather sub-par illusions, and not great Escher homages either. I consider those images to be simple experiments, not really final “masterpieces”.

For those who are wondering, the third one, the one with the ornament, is not a painting and there is no trickery regarding which hand is holding the ornament. The reason you can’t see the camera in the reflection is that it is obscured by the darkness of the fireplace.