Youtube on1 photo raw 2018 shadow recovery

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When stopped down to f/2.8 the Laowa вЂњflattensвЂќ out a lot for vignetting and uniformity of frame illumination. A tracked image with the Venus Optics Laowa 15mm stopped down 1 stop to f/2.8. ThatвЂ™s not the case with current versions (as of April 2019) of other raw developers such as DxO PhotoLab, ON1 Photo RAW, and Raw Therapee where vignetting corrections have to be dialled in manually by eye. Adobe Camera Raw and Lightroom have this lens in their lens profile database. No lens correction has been applied so the vignetting (the darkening of the frame corners) is as the lens provides.ДЄs shown above, when used wide open at f/2 vignetting is significant, but not much more so than with competitive lenses with much larger lenses, as I compare below.ДЄnd the vignetting is correctable in processing.

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Click or tap on an image to download a full-resolution JPG for closer inspection.ДЄbove is a tracked image (so the stars are not trailed, which would make it hard to tell aberrations from trails), taken wide open at f/2. Vignetting A tracked image with the Venus Optics Laowa 15mm at f/2. But lacking a lens adapter for Nikon-to-Sony at the time of testing, I used the Nikon-mount Sigma lens on a Nikon D750, a DSLR camera with nearly identical sensor specs to the Sony. I used the Rokinon on the Sony a7III using the Metabones adapter which, unlike some brands of lens adapters, does not compromise the optical quality of the lens by shifting its focal position.

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The next images show blow-ups of the same scene (the nightscape shown in full below, taken at Dinosaur Provincial Park, Alberta), and all taken on a tracker. See my test report on these lenses published in 2018. Both are much larger lenses, made for DSLRs, with bulbous front elements not able to accept filters. To test the Venus Optics lens I shot вЂњsame nightвЂќ images, all tracked, with the Sigma 14mm f/1.8 Art lens, at left, and the Rokinon 14mm SP (labeled as being f/2.4, at right). IвЂ™m happy to report that they are very good indeed. The key factor is how good are the optics. However, for nightscape work where all settings are adjusted manually, the Venus Optics 15mm works just fine. There are no electrical connections between the lens and camera. Nor does it even transfer aperture data to the camera, which is a pity.

#Youtube on1 photo raw 2018 shadow recovery manual

However, this is a no-frills manual focus lens. sources.ДЇor me, the Sony-Laowa combination is my first choice for a lightweight travel camera for overseas aurora trips The lens mount showing no electrical contacts to transfer lens metadata to the camera.

The Laowa is not a plastic entry-level lens, nor is it cheap, at $850 from U.S.

Nevertheless, it is half the weight of the massive 1250-gram Sigma 14mm f/1.8 Art. While compact, at 600 grams the Laowa 15mm is quite hefty for its size due to its solid metal construction. Venus Optics 15mm f/2 lens (for Sony mount). Sigma 14mm f/1.8 Art lens (for Nikon mount) vs. The Venus Optics 15mm realizes the potential of mirrorless cameras and their short flange distance that allows the design of fast, wide lenses without massive bulk. Though a very wide lens, the 15mm Laowa accepts standard 72mm filters. While wide, the Laowa is a rectilinear lens providing straight horizons even when aimed up, as shown above. The Laowa 15mm f/2 from Venus Optics fills the bill very nicely, providing excellent speed in a compact lens.

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This is a single 0.8-second exposure at f/2 with the 15mm Venus Optics lens and Sony a7III at ISO 1600. However, for much of my nightscape shooting, and certainly for auroras, I prefer lenses even wider than 24mm, and the faster the better.ДЄurora over BГҐtsfjord, Norway. The selection of fast, wide lenses from Sony itself is limited, with the new Sony 24mm G-Master a popular favourite (I have yet to try it). While I often use the a7III with my Canon lenses by way of a Metabones adapter, the Sony really comes into its own when matched to a вЂњnativeвЂќ lens made for the Sony e-mount. ( UPDATE: Venus Optics has announced versions of this lens for Canon R and Nikon Z mount mirrorless cameras.) Made for Sony e-mount cameras, the Venus Optics 15mm f/2 Laowa provides excellent on- and off-axis performance in a fast and compact lens ideal for nightscape, time-lapse, and wide-field tracked astrophotography with Sony mirrorless cameras. It works very well indeed.Д«ut what about lenses for the Sony? HereвЂ™s one ideal for astrophotography. In a previous test I presented results on how well the Sony a7III mirrorless camera performs for nightscape and deep-sky photography. I test out a fast and very wide lens designed specifically for Sony mirrorless cameras.