Tamron SP 35mm f/1.8 Di USD VC (DX) - Review / Lab Test Report
Lens Reviews - Nikon / Nikkor (APS-C)
Article Index
Introduction
Analysis

Review by Klaus Schroiff and Markus Stamm, published November 2017

Introduction

It is no news anymore but Sigma is highly successful with their new "Art" and "Sports" lens series. Traditionally they have been regarded as a "cheap" mass manufacturer but they were able to improve their reputation quite dramatically. Sigma can now even ask a certain premium price for their high end product lines.

Obviously this didn't go unnoticed neither by the original manufacturers nor by Tamron. Tamron, the 2nd biggest third-party manufacturer, had a period where they were seen as slightly ahead of Sigma in terms of quality but today this is no longer true (if it ever was really). In any case they seem to feel the heat and they had to do something about it. Among the first steps to reinvent themselves is the introduction of relatively fast prime lenses - namely the Tamron SP 35mm f/1.8 Di USD VC and SP 45mm f/1.8 USD VC. This follows the recent trend of pushing this lens segment to new limits with the Zeiss Otus lineup at the very top of the food chain.

Honestly, our first reaction upon the Tamron announcement was less than being thrilled. A max aperture of f/1.8 is by no means overly ambitious after all and the pricing is comparatively steep at 600 EUR (at the time of this review). This is also close to their Sigma rivals (35mm f/1.4 Art and 50mm f/1.4 Art) and the Sigmas are faster options albeit without image stabilization.

In this review we'll have a look at the Tamron SP 35mm f/1.8 Di USD VC on the Nikon D7200. Other than the Sigma 35mm f/1.4 Art, this lens is competing against the native Nikkor lens, the AF-S 35mm f/1.8 G and in the scope of this DX review, obviously also the much cheaper Nikon AF-S DX 35mm f/1.8.

Tamron's new ambition in following Sigma's push is most obvious in terms of build quality. Traditionally Tamron emphasized small size and weight which also meant that many of their products used an extensive amount of plastics. Consequently many lenses felt a bit "hollow" and didn't really leave the best quality perception - although technically there's nothing wrong with plastics really.

This has changed now. The Tamron SP 35mm f/1.8 Di VC USD uses a metal body based on a metal mount and everything is tightly assembled. The lens is also moisture-resistant. A fluorine coating on the front elements repels dust and waterdrops. A petal shaped lens hood is also part of the package.

Tamron's USD (Ultrasonic Silent Drive) is both very fast and silent and also makes the lens compatible with all Nikon DX DSLRs, entry-level models included. Interestingly the lens can focus down to 0.2m providing a max. object magnification of 1:2.5 - this is impressive.

A floating system is used to optimize the positioning of the focus groups at such focus distances. As mentioned Tamron included image stabilization or to use Tamron's wording "Vibration Control" (VC). According to their claims, is good enough for a gain of 3 f-stops. That being said - in the real world Tamron's VC efficiency felt closer to 2 f-stops really.

The lens is compatible with Tamron's TAP-in USB Console (even thought at least for early production models a firmware update of lens might be required to make it compatible). Just like Sigma's USB Dock, the Tamron Console allows to adjust autofocus accuracy at three distance regions, set the priority of VC to stabilize viewfinder image or the actually shot image and update the lens' firmware.

On a side note: in the field, our review unit consistently overexposed by 1 to 1.5 stops.

Specifications
Equiv. focal length52.5 mm (full format equivalent)
Equiv. aperturef/2.7 (full format equivalent, in terms of depth-of-field)
Optical construction10 elements in 9 groups, including 2 aspherical, 1 XLD and 1 LD elements
Number of aperture blades9 (rounded)
min. focus distance0.2 m (max. magnification ratio 1:2.5)
Dimensions80.4 x 80.8 mm
Weight760 g
Filter size67 mm (non-rotating)
Hoodpetal-shaped (bayonet mount, supplied)
Other featuresMoisture-resistant, Vibration Control, Fluorine, floating system