Tamron SP 35mm f/1.4 USD Di Lens for Nikon {72} F045

Tamron's 35mm f/1.4 prime built for serious wide-angle work.

The SP 35mm f/1.4 Di USD is Tamron's most ambitious fixed focal length, built to mark the 40th anniversary of their SP series and constructed with an optical formula that reflects it: 14 elements in 10 groups, including four LD glass elements to control chromatic aberration and three aspherical elements to address distortion and coma. At f/1.4, this kind of correction matters, fast primes typically fall apart in the corners at wide apertures, but Tamron's density of special glass keeps sagittal coma flare and on-axis color fringing in check across the frame. The 9-blade circular diaphragm produces smooth out-of-focus rendering, and BBAR-G2 coating handles flare and ghosting under backlit conditions where lesser coatings struggle with contrast loss.

The USD ring-type ultrasonic motor drives focus internally, keeping the front element stationary and the barrel length fixed during focus pulls, useful when using filters or shooting in tight quarters at the 0.3m minimum focus distance. Full-time manual override works without switching AF off, so fine-tuning focus on a portrait subject at f/1.4 doesn't require hunting through menus. Weather sealing at the mount and throughout the barrel, combined with a fluorine front coating, makes this a lens you can trust in rain. At 805g and 102.3mm long, it's substantial but well-balanced on a mid-sized body.

Who It's For

Street photographers shooting in available light will appreciate the f/1.4 aperture and internal focus design, the barrel doesn't shift, filters stay put, and the USD motor is quiet enough not to draw attention. Event and documentary shooters working in mixed lighting benefit from the BBAR-G2 coating keeping contrast intact under harsh artificial light. Portrait photographers who work at wide focal lengths will find the 9-blade bokeh rendering and aberration-controlled f/1.4 output gives them subject separation without color fringing muddying skin tones. Landscape photographers shooting in wet conditions get the weather-sealed build and fluorine coating as practical protection, not marketing language.

Key Features

• 14 elements in 10 groups with 4 LD and 3 aspherical elements
• f/1.4 maximum aperture for shallow depth of field and low-light work
• Ring-type USD ultrasonic motor with full-time manual focus override
• Internal focus design with fixed barrel length and front element
• BBAR-G2 and fluorine coatings reduce flare and ghosting in backlit conditions
• Weather-sealed construction with moisture-resistant seals at mount
• 9-blade circular diaphragm for smooth bokeh rendering
• 0.3m minimum focus distance with 0.2x magnification

FAQ

What makes the optical design handle f/1.4 so well without corner falloff?

The 14-element, 10-group formula includes four LD elements controlling chromatic aberration and three aspherical elements correcting distortion and coma. At f/1.4, most fast primes show sagittal coma flare in the corners - this lens keeps it flat across the frame.

How does the USD motor compare to standard autofocus systems?

USD is a ring-type ultrasonic motor that's faster and quieter than conventional AF drives. On this lens specifically, the newly developed Dynamic Rolling-cam mechanism minimizes load on the focus group, so you get stable performance even at f/1.4 where the focusing unit is heavy.

Does the focus ring move during autofocus?

No. Internal focus design keeps the barrel length and front element fixed during focus pulls. That's useful when stacking filters or shooting at 0.3m minimum focus distance in tight spaces.

Can I manually adjust focus while AF is active?

Yes. Full-time manual override lets you fine-tune focus at f/1.4 without switching AF off or hunting menus.

How does the weather sealing hold up in rain?

Seals are positioned at the mount and other critical points to block moisture infiltration. The front element has a fluorine coating that's water and oil-repellent, so rain and fingerprints wipe clean without leaving residue.

What's BBAR-G2 coating doing that matters?

It's the second generation of Tamron's Broad-Band Anti-Reflection coating. Under backlight, where lesser coatings cause contrast loss and ghosting, BBAR-G2 keeps the image clear with minimal flare. You'll notice it most shooting into the sun or with bright backgrounds.

Is the 9-blade diaphragm just for aesthetics?

Circular blade design produces smooth out-of-focus rendering instead of polygonal bokeh. At f/1.4, that smoothness matters for portraiture and isolating subjects from background.