Vivitar Tec155
This camera is interesting for several reasons, the primary one being that although it is a point and shoot with a fixed lens the zoom is controlled by twisting the front of the lens instead of some small button or lever like most other point and shoots. 
This allows for very fast zooming with the focal length indicated in a window on the top plate. Unfortunately the lens has very bad chromatic aberrations which appear as coloured fringing around objects particularly towards the edges of the image.
Additionally my copy of this camera has obvious dust and fibers inside the lens somewhere that show up in some of the images as well as a hazy blue spot sometimes in the center. 
None of this is outwardly visible on the lens. So the only thing this camera is good for is if you are trying to take pictures that look like they came from a terrible camera. This is despite the fact that the lens is branded as Vivitars top of the line ‘Series 1’ with 8 elements in 7 groups.
