TAMRON OBJEKTIV TEST MANUAL

As such, it is important to evaluate whether or not the Tamron 35-150mm can keep up with fast movements of the subject. AF TrackingĪF tracking, or continuous AF, is a hallmark of Sony cameras. In summary, the Tamron 35-150mm does superbly well in good light, and adequately in low light. AF speed drops to around 0.3 seconds, and becomes almost independent on light levels. At 2 EV and more, measurements become hard to make focus is essentially instantaneous. Below 2 EV, the lens can be somewhat slow in very low light, with a linear increase as light increases. There are two regimes when testing focus with the Tamron 35-150mm. Three measurements were averaged for each data point.įor reference, 5 EV corresponds roughly to a small room lit with a 60 W bulb, and a sunny day corresponds to 16 EV, and a moonlit night to -2 EV. The subject was a black cross on a white background, about 1.5 meters in front of the camera. Most images in the burst were properly in focus, but some ended up with strong back-focus, where the system simply lost the subject despite it being contrasted with regards to the background.īack-focus while using AF-C and subject tracking AF SpeedĪF speed was tested with the A7C. In the example below, the subject was moving at an angle towards the camera. However, we did come upon occurrences of back focusing. We observed no occurrences of hunting during our tests. Thanks to the USB-C port and Tamron’s software, it is possible to tune the responsiveness of the focus ring, its linearity and sensitivity of the ring, and even program focus pulls for videos! Tamron did a good job even though focus-by-wire is not as direct as mechanical focusing. The precision of the focus adjustments will be dictated by the speed of rotation of the focus ring. It provides passable feedback to the user, adequate but nothing special. The focus ring is adequately dampened and shouldn’t move accidentally.

TAMRON OBJEKTIV TEST MANUAL

There is a manual focus switch on the lens, a welcome addition generally missing from Tamron lenses. It supports every focusing mode available on the A7C. The lens keeps up with subject tracking using AF-C. Focusing feels fast and is almost completely silent. In use, the 35-150mm is extremely responsive. The former actually used two motors in conjunction, whereas the later uses only one because only one glass group moves to focus. The 35-150mm uses the same VXD (Voice-coil eXtreme-torque Driver).

When writing our review of the Tamron 70-180mm, we mentioned that its AF system was the best we’ve seen. The 35-150mm is slightly bigger than the 70-80mm, and significantly larger than the 28-75mm. Here is the Tamron 35-150mm next to the Tamron 70-180mm and Tamron 28-75mm G2 lenses. The lens dwarfs the diminutive camera but still handles comfortably. Tamron did not supply a foot for the lens, considering that the weight is low enough.

Holding the lens instead of the camera will still be advisable whenever possible. The Tamron 35-150mm is a big lens, but still manages to handle well with the small Sony A7C. This will probably be more robust than the usual, which relies on friction only to hold hoods in place. To remove it, a button needs to be depressed. One new feature is the presence of a lock on the hood. It is petal-shaped and, as usual, reverses for storage. To some extent, it serves a function akin to a lens hood. There is a rectangular cut-out on the back, to diminish stray reflections. The lens mount is metal, and features a black o-ring to protect against water ingress. Read on to find out everything there is to know about the Tamron 35-150mm f/2-2.8 Di III VXD! Specifications Lens Name In this in-depth review, we will take a look at all the technical and artistic parameters which help to define a lens. The lens has a long list of features: fastest aperture for a FE-mount zoom lens ever, linear AF motor (called VXD and arguably Tamron’s most advanced AF system to date), weather sealing, USB-C port and compatibility with Tamron Lens Utility software, numerous external controls, 9 rounded aperture blades, advanced coatings, and more. After proposing simplified (and cheaper) alternatives to the classical trinity of fast zooms, the 35-150mm F2.-F2.8 aims to be a one-stop-shop for high-quality optics, replacing several primes and zooms in a single lens. With this lens, Tamron continues to flesh out its lens lineup in innovative ways. Indeed, the lens touches “prime lens” territory with a maximum aperture of F2 at the wide end, and a fast F2.8 over the rest of the range. This focal range is rare, but what sets this lens apart is the aperture range. For this reason, Tamron generated a lot of interest when they released a 35-150mm lens. Regardless of the manufacturer, lenses being proposed to photographers are often quite similar, at least I n the basic characteristics.

Tamron objektiv test