As Barney was experimenting with different effects on his camera and finally produced this photo, the effect that Barney use in this photo is known as blending.
Also known as an in-camera effect, it refers to those special effect in a video or movie that is created solely by using techniques in and on the camera and/or its parts.
It is also seen as the fact that the effect exists on the original camera negative or video recording before it is sent to a lab or modified.
Some types of camera effect includes the light painting, silhouette, reflection, bokeh, lensball, long exposure, blending etc.
Therefore, as Barney was experimenting with different effects on his camera and finally produced this photo, the effect that Barney use in this photo is known as blending.
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