In terms of distortion, the OP4K Wide Angle is highly rectilinear, exhibiting almost no barrel distortion. The OP4K is wider vertically but the horizontal field of view is pretty much the same for both lenses (about 20% wider than the standard Osmo Pocket lens). Looking at field of view, there's not much difference between them. I got round to making a video comparing footage from the two new Ulanzi lenses for the Osmo Pocket: the OP4K Wide Angle and the OP-11 1.33x Anamorphic Lens. Unfortunately, the Ulanzi (my copy at least) only makes an image about 1.2x wider horizontally, so a 20mm field of view instead of the usual 24mm. A true 1.33x lens would allow a 2.35:1 cinemascope ratio to be obtained from the 16:9 sensor. Obviously, the OP sensor is too small to produce oval bokeh but the Ulanzi lens does produce very vivid flaring and a slightly wider field of view. Up until now, anamorphic lenses have been prohibitively expensive and / or very large and complicated. These characteristics have become associated with high-end film production and are desired by many videographers and film-makers.
The idea of anamorphic lenses is to give a wider field of view while preserving the characteristics of a longer focal length - avoiding the perspective distortions wide angle lenses tend to create.Īs a by-product of their design they produce oval shaped bokeh and horizontal, linear lens flares. PS, the footage looks nice if you ask me. I still struggle to find a good reason for these lenses.Ĭan you make a with and without comparison?
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