The lens is tiny – and, dare I say – super cute. Recessed and accented with a silver casing, the lens is relatively safe from scratches. It does not come with a lens cap, but the deep setback and using the carrying case when on the go, shouldn’t require much cleaning. A periodic wipe with a microfiber lens cloth should do the trick.
This is a fixed lens – no zooming capabilities. The focus ring is located on the left-hand side of the projector when looking at the lens. It is a small, white, ridged gear that is easy to use. I can get the M6 to be perfectly focused within seconds. I appreciate the accuracy, especially since the focus ring is tiny, too. Those ridges definitely help with grip. Fixed lenses are typical on the small LED projectors in this class. When there are exceptions, the amount of zoom is normally minimal, The theory is this type of projector can easily be moved closer or further from your screen surface.
When focusing dead center, there is the slightest amount of softness in the corners of the image. However, focusing on a point about 1/3 out between the center and a corner improves the corner sharpness. We typically focus 1/3 out from the center when we review projectors because, in most cases, this is the best way to get the sharpest image from the projector.
There’s almost always some curvature of the image at the top and bottom of a projector. This is called barrel distortion and all lenses have it, at least to some minor degree. In the case of the AAXA M6, if there is a curve – I can’t see it. It must be so slight, since I am unable to detect it.