They are designed to display images, such as horizontal or vertical lines in a straight pattern. Mind you this is my experience with one sample of each lens and is a subjective observation. Decide what you want more, then youll know which lens to buy. Sigmas update to their popular 1020mm ultrawide lens now offers a faster constant aperture of f3. In reply to ben yeh jan 21, 2008 in cs3 go filter distort lens correction then in the resulting window theres a pincushion barrel. A fast, almost silent wideangle zoom lens that is wellbuilt and relatively flareresistant. Adobe photoshop helps to take care of these problems, but not everything can be fixed with software. Im looking to buy a nice wide angle lens, but am torn between the canon 1022 and the sigma 1020. Its at its most prominent at 10mm, where barrel distortion shows at. Produced in the legendary aizu facility in japan, sigma presents their 1020mm f45.
The negatives that the lenses bring to the party, such as barrel distortion, and chromatic aberration, can be corrected if necessary with software. In the 1020mm range, oof details generally remain tiny, but this 6. Bokeh background blur quality is not easy to discern in a lens this wide and is not real important for the uses i have for a lens such as this one. I think my 185 might be sharper and around the same barrel distortion amount as this sigma lens which is rather minimal on long side of the 1020 at 1820mm. Perhaps this thorough saturation is the reason that the sigma 1020mm f3. The lens is finished in the standard sigma sparkly dirtlook black which i hate, however, quality is. However, the shape of the distortion is uniform so this should be fairly straightforward to correct in image editing software afterwards. They usually have some complex barrel distortion at their wide ends, are flat. The newer sigma includes a relatively fast, and constant f3. Distortion at wideangle, with its hefty barrel effect localized towards the. We have really good speed now in this category sigma is only beaten by tokina 1116 mm f2. Most of all, however, was corrected the behavior at the edge of the frame, which was the achilles heel of the older model. Hence, if you dont have your cameralens horizontal, flat, and have the subject at the ends. There has been a surge of new wideangle lenses in the past 12 months, with sigma and many.
The sigma 1020 provides equal sharpness from the center to the outsides of its coverage as my canon 1740 mm zoom at the same focal lengths. Designed specifically for dslr cameras with apsc format sensors, it is offered in mounts to suit sigma, nikon, canon, sony and pentax models. An ultra wideangle lens is a lens whose focal length is shorter than the short side of film or. I try to use the 16 end only in small bedrooms and bathrooms and stay between 20 and 24 in larger rooms. The image resolution of sigma 1020 mm has been measured on the strength of raw files from nikon d200. Canon 1022 vs sigma 1020 test in canon ef and efs lenses. In the case of sigma, the measuring errors oscillated between 0. Ultrawide lenses are typically prone to distortion, but in this case the sigma 1020mm. By 14mm, distortion is very well controlled with some pincushion distortion visible from 16. We recently used the same camera body to test tamron 1024 mm and nikkor 1024 mm, so well be able to make a direct comparison of the obtained results. A lot of people love the tokina 1116 but forgive me, my opinion is that its levels of ca, flare, resolution and distortion are far worse than either 1020 from sigma. How do i normalize sigma 1020 lens retouching forum.
Each of these below is just the top 8% of the frame. With the advent of corrective software in most photo processing software, barrel distortion is easily remedied. There are many wide lenses available and its sometimes difficult to sort through them all. The sigma seems cheaper but it seems as though the canon 1022 is. This is hardly noticeable in natural landscape shots. Following is a photo that shows the sigma 1020 standing next to the nikon 1870. The lenss optical design incorporates a series of low dispersion and aspherical elements, which help to reduce chromatic and spherical aberrations throughout the zoom range, as well as contribute to improved. With premium build and image quality, the sigma 1020mm 3.
Photography presentations programming quotes site software. Distortion is usually quite pronounced in dx wideangles, regardless of the producer. It was introduced amongst a flurry of announcements as manufacturers raced to provide wideangle zooms for the burgeoning apsc format dslr market, with similar offerings also appearing in short measure from the likes of tamron and tokina not to mention. By 14mm, the lens is producing just barely visible pincushion distortion. Either you need the 1020 range or you need the 18105 range. Please ignore exposure and color variations between lenses and focal lengths. Building on 50 years of innovation in precision optics design and craftsmanship, the 1020mm is an ultra wide angle zoom lens which encompasses several advance features designed to counter commonly found optical aberrations. This group is for everything and anything relating to the sigma 1020mm super wideangle zoom lens. The sigma 1020 has an unusual distortion characteristic where it has relatively low distortion for much of the frame at 10mm except for the extreme corners. Sigma now offers a high quality, constant aperture, super wide zoom that has the same focal range as the sigma 1020mm f45. Sigma 1020 vs canon 1022 vs tokina 1224 1116 in canon ef and efs lensesi was going to post a few pics i have with a tree to the side of the frame, and then remembered the trees are bent to begin with.
At 10 mm we have a slight barrel distortion which value was determined as 0. Sigma announces details of support program for fullprice sd1 buyers. Nikon 12 24 mm f4, tokina 12 24 mm f4, sigma 10 20 mm f4 5. I would go with the sigma 1020mm just because of the flexibility of a. If youre shooting landscapes and such at f8, the sigmas great, razor sharp all over and very very very little barrel distortion pretty much unnoticable.
For 43 any 10mm or shorter lens is considered ultra wide angle. That is to be expected since most ultrawide angle lenses are prone to distortion. To get really wide shots, one needs a dedicated wide angle lens. At 15 mm it swiftly turns into pincushion at the level of. Sigma seems to have made an optical compromise by having significant distortion barrel distortion at the edges, while having nearly none in the center. The tokina is great for an unsteady hand and low light and while it does take nice photos, the facts or those who are pixel peepers can show you a big difference. I suspect that this issue will be corrected by sigma service when i send my 1020 in for repair. Not only does it capture a lot of light, it also manages to focus close, shoot images with excellent detail, and minimize barrel. According to tests, canon 1635 has relatively heavy 3. Photograph taken with a sigma 1020 mm lens, which is a rectilinear lens as. Covering a flexible ultrawide range, the nikon fmount 1020mm f3. The problem is that such distortions are difficult to remove from the picture. The 1020mm shows a strong level of barrel distortion at its widest angle, 5.