This also happened at times with low-contrast subjects. NIKON D810 + Sigma 150-600mm f/5-6.3 DG @ 440mm, ISO 800, 1/500, f/6.0 The Siemens-star test-targets are shot at a distance of 40x focal length (i.e. at 20 m for 500 mm focal length). But performance of lenses also depends on the shooting distance. Therefore I present another series of test-shots of a city-scape around 1km away. Processing was done in Lightroom 6.6 from RAW at Adobe Standard settings. Noise-reduction is set to 0, sharpening to 35/0.5/36/10, with no extra tone, or saturation-adjustment. There’s no tinkering with vignette-control so you see it here as it is produced by the lens. I used AF in live view at the largest aperture and did not change focus for other apertures. Corner sharpness is hurting at long distance and f/8 in this study of the Organ Mountains in New Mexico. NIKON D810 + Sigma 150-600mm f/5-6.3 DG @ 360mm, ISO 250, 1/500, f/8.0 NIKON D810 + Sigma 150-600mm f/5-6.3 DG @ 360mm, ISO 250, 1/500, f/8.0

And Niki has no trouble with this egret: NIKON D810 + Nikkor 200-500mm f/5.6 @ 500mm, ISO 1000, 1/1250, f/9.0 Considering that neither Canon nor Nikon makes a native 150-600mm lens, it seems a bit odd to be spoiled for choice in this particular market segment. The Sigma Sports wins at 150mm in center sharpness, it is tied with the Tamron G2 in the APS-C/DX-corner, and in the FF/FX-corner both Tamrons are in the lead. I am by no stretch of the imagination well heeled. And besides that I'm naturally a cheap bas*tard.... so upgrading gear for me is like grinding teeth. Thank gawd my wife isn't into photography but that's another story. Niki with TC14III (700mm) and no processing. NIKON D810 + Nikkor 200-500mm f/5.6 @ 700mm, ISO 400, 1/640, f/8.0Niki is razor sharp at 500 mm and near minimum focusing distance. Just look at the hairs in front of this condor’s eye (Condor in release pen awaiting results of lead poisoning test). NIKON D4S + Nikkor 200-500mm f/5.6 @ 450mm, ISO 1000, 1/640, f/9.0 Tami nails this Crested Caracara shot: NIKON D810 + Tamron 150-600mm f/5-6.3 @ 600mm, ISO 500, 1/1000, f/9.0 Loads of air is pumped in and out as the 150-600mm zooms. All that air has to go someplace, and so it's pumped in and out of your camera body, and you may have some air blow out of the eyepiece into your eye. At 500mm things turn a bit around: The Nikon is no longer the benchmark at this focal length. Sharpness within the APS-C/DX image circle clearly favors both Tamrons. And in the FF/FX-corner both the Sigma Sports and the Tamron A011 perform best while the new Tamron G2 is a bit soft (as is the Sigma “C” and the Nikon). Note that though I have evidence of this issue in Tami, all three of these lenses could end up have the same dust pump issue. My gut feeling is that perhaps the issue might be worse with Tami because she zooms faster and with less resistance. Unless you consistently shoot in dusty conditions I wouldn’t choose one over the other based on this.

The Tamron 150-600mm VR/IS is an inexpensive ultra telephoto zoom that works much better than I had expected. Like Niki, corner to corner looks better at shorter focal lengths, especially when stopped down, but even the four shot pano of clouds over the Organs earlier shows softness in the corners. More field testing showed that the corner sharpness starts falling off noticeably from about 60 feet from the subject to infinity. Tami and Sigi both beat Niki at long distances with Tami the best at infinity and Sigi better at 60 feet. NIKON D810 + Tamron 150-600mm f/5-6.3 @ 500mm, ISO 125, 1/500, f/8.0 If you do not need weather sealing, it's difficult to top the value offered by the Sigma 150-600mm Contemporary lens. All-in-all the results from the image stabilizer tests are very good – although not a clear-cut win over the older A011 model.extend to the Canon big white telephoto lens range. Its price-to-performance ratio makes it an excellent value. On the flip side, when shooting landscapes, corner-to-corner sharpness is more important. NIKON D810 + Sigma 150-600mm f/5-6.3 DG @ 150mm, ISO 250, 1/500, f/8.0 Filters of this size are certainly not inexpensive, but... compatibility with filters makes for a more versatile lens.

Use the MF setting only if you want focus to stay where you set it and not move if you tap your shutter button. Distance information is relayed to the camera, so the Tamron body can do all the advanced exposure-related stuff with this lens. Same with the competition. [+] At least on Nikon DSLRs which correct this, this lens looks great at every focal length. Lateral color used to be a huge problem with lenses this long, and this Tamron looks great on my D810.VC MODE 3 prioritizes the stabilization of the captured images and forgoes the stabilization of the viewfinder image.

The improved VC minimizes blurring caused by slight camera movement, which is prevalent with long telephoto lenses and even more troublesome with higher-resolution cameras. VC enhances the freedom of hand-held shooting at slower shutter speeds required by low-light conditions such as dusk. Sigma made a big splash in September 2014 when they announced two 150-600mm f/5-6.3 DG OS HSM Global Vision lenses at the same time, featuring a Contemporary model and a higher grade Sports model.Three LD (Low Dispersion) lens elements completely eliminate axial and transverse chromatic aberrations The VC (Vibration Compensation) effectiveness is equivalent to 4.5 stops, based on image stabilization performance levels established by CIPA (Camera & Imaging Products Association) when using in VC MODE 3. Tamron’s 150-600 G2 now has three types of VC modes, and it is possible to choose the optimum VC mode according to the situation for taking a photograph, such as when wishing to pan the camera. In general, most wildlife shots feature the animal somewhere around the center of the frame, not in the corners. Hence for wildlife I would tend to favor a lens with superior sharpness in the center of the frame over one with less sharpness in the center but better corner-to-corner sharpness. NIKON D810 + Nikkor 200-500mm f/5.6 @ 380mm, ISO 500, 1/1600, f/6.3