Reviews and Problems with Pentax smc DA 10-17mm F3.5-4.5 ED Fish-Eye
Showing 1-4 of 4
REVIEW: Pentax SMC P-DA Fish-Eye 10-17mm f/3.5-4.5 ED Lens Review
6 July 2014
Excerpt: v This strange lens offers the distorted view of a fisheye lens, with the convenience of a zoom lens. It offers a 180degree field of view, from corner to corner when set at 10mm and the equivalent of a 25.5mm lens on a 35mm camera, with lots of barrel distortion, at 17mm. Some people may realise that this lens looks identical to the Tokina 10-17mm fisheye zoom available for Canon and Nikon mounts.
Excerpt: The lens gives a viewing angle of 1800 at 10mm and 1000 at 17mm and being a DA format lens this equates to a 15mm-25.5mm full-frame equivalent. The lens also offers extra-low dispersion glass elements to help reduce chromatic aberration, on top of which there's an SP (Super Protect) coating to make cleaning the lens's front element easier. The build itself is of good quality, featuring both metal and plastic parts, together giving it a refined feel and solid weight.
Excerpt: On Pentax D-SLRs, this DA 10-17mm lens has a comparable 35mm focal length of 15-25mm. But, unlike the other ultra-wide zooms on test, this is a true fisheye lens with uncorrected optics that can deliver a 180Âº field-of-view at 10mm. This also means that the image is heavily distorted, bending both horizontal and vertical lines, but the circular image that the lens captures fully covers the sensor.
Pentax SMC DA 10-17mm f/3.5-4.5 ED[IF] Fisheye - Review / Test Report
31 October 2008
Conclusion: Fisheye lenses are never really perfect performers. However, these are special effect lenses where sheer quality is more a secondary aspect anyway. The Pentax SMC DA 10-17mm f/3.5-4.5 ED[IF] Fisheye is certainly sharp enough for its purpose and the high degree of barrel distortion is naturally a feature to enjoy and not a bug. However, the Pentax lens clearly has some downsides. The bokeh (out-of-focus blur) is very harsh - see e.g. the "horse" sample image above.