Wide-open, corner shading measures a bit over a half-stop of light falloff as you stop down, vignetting decreases steadily, going below 0.25 stops by around f/4-f/8. Vignetting is far from problematic from the 17mm f/1.2, but it is measurable and noticeable at the wider aperture - not all that surprising for a bright, wide-angle lens. At the maximum, there is still very little barrel distortion, significantly under 0.5%. On average, the distortion level hovers right above the zero mark towards the barrel distortion direction. wide-angle focal length, the Olympus 17mm f/1.2 displays almost no significant geometric distortion.
#ARTSTUDIO PRO 2.1.8 SOFTWARE#
Olympus' in-camera JPEG processing should have no problem clearing that up, or if you edit RAW files, a few quick adjustments in your editing software of choice should quickly clear up any CA that may appear. Looking closely at our test shots, CA is very subtle and more or less contained out towards the corners in the form of slight cyan and magenta fringing on high contrast edges. By our measurements, we found CA is the most minimal at the widest aperture, before increasing slightly and plateauing around f/5.6 and beyond. Chromatic AberrationĬhromatic aberration is, overall, very well controlled. Even diffraction-related softening is very minimal, with only a minimal dip in sharpness starting around f/11 and continuing until f/16. Stopping down slightly, we measure a subtle increase in sharpness, but nothing that would scare us away from using f/1.2 - you'll get tack-sharp photos wide open and stopped down.
The lens is exceptionally sharp at both the center and in the corners at f/1.2, which is very impressive, especially for a wide angle lens with this bright an aperture. SharpnessĪs we've experienced with Olympus Zuiko Pro lenses, both zooms and primes, the level of sharpness and detail these lenses can resolve is fantastic.
Here are the lab results that lead to and support that verdict. If you're a regular to IR, you'll likely already be aware that we awarded the 17mm f/1.2 Pro the top spot as the Best Wide Angle Prime for 2017 in our annual Lens of the Year awards.
#ARTSTUDIO PRO 2.1.8 FULL#
Here, we'll take a detailed look at our full lab testing of the wide-angle 17mm f/1.2 Pro lens. Besides the focus on image sharpness as well as bokeh quality, Olympus also made a particular point (and significant optical engineering effort) to create all three f/1.2 Pro primes with nearly the same physical dimensions, and all there sharing a 62mm filter thread. Have iPhone/iPod Touch with firmware 2.2.To follow the 25mm, Olympus created both a 17mm f/1.2 Pro and a 45mm f/1.2 Pro, which offer prime fans 35mm-equivalent and 90mm-equivalent options, respectively, in addition to the 25mm's 50mm-eq.We can say without a doubt that photo fx is the most complete feature rich photo app available for the iPhone & iPod Touch without a doubt one of the best image editing apps on a mobile device.
Simulations of many popular award winning Tiffen optical glass filters, laboratory processes and photographic effects are at your fingertips. Photo FX is the definitive set of digital optical filters for the iPhone & iPod Touch. Hello SamaGame Readers/as this time I bring you this application called Photo FX.
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