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Tamron 50-300mm f/4.5-6.3 Di III VC VXD specifications and in-depth review

Tamron 50-300mm f/4.5-6.3 Di III VC VXD

Manufacturer: Tamron

The Tamron 50-300mm f/4.5-6.3 Di III VC VXD is a telephoto zoom lens built for Sony E-mount cameras, covering a versatile focal range from 50mm to 300mm. It features a metal mount and weather sealing, making it a solid option for varied shooting conditions. The lens ships with a reversible hood and has a front element that remains stationary during focusing.

Optically, the lens offers a 0.5x magnification and a 6x optical zoom ratio, with a maximum angle of view of 48° at the wide end narrowing to 8° at full telephoto. The aperture runs from f/4.5 at 50mm to f/6.3 at 300mm, backed by nine rounded aperture blades for smooth out-of-focus rendering. Focusing is handled by a built-in silent focus motor that supports full-time manual override and can lock onto subjects as close as 0.25 meters.

Pros
  • The front element does not rotate during focusing, which makes using circular polarizing filters straightforward
  • Weather sealing provides splash resistance for outdoor use in variable conditions
  • A silent built-in focus motor allows for discreet shooting and supports full-time manual focus override
  • Nine rounded aperture blades contribute to smoother out-of-focus rendering
  • The lens can focus as close as 0.25 meters, enabling relatively detailed close-up shots
  • The reversible lens hood and metal mount add to the overall build practicality
Cons
  • No built-in optical image stabilization, which can be a limitation at the longer end of the focal range
  • The aperture narrows to f/6.3 at 300mm, reducing light intake in telephoto situations
  • At 665g, the lens adds noticeable weight to a camera setup
Who is this for?

This lens suits photographers who regularly shoot subjects at varying distances, such as wildlife, sports, or outdoor events, where the 50–300mm focal range provides useful reach without changing lenses. The weather sealing and metal mount make it a practical choice for those who frequently work in unpredictable outdoor conditions. Shooters who rely on silent autofocus and full-time manual override — such as those doing candid or event photography — will also find its focus system well-suited to their workflow. The 0.25m minimum focus distance adds versatility for users who occasionally need to photograph closer subjects within the same shooting session.

Who is this NOT for?

This lens is less well-suited to photographers who shoot in low-light environments at longer focal lengths, as the f/6.3 maximum aperture at 300mm significantly limits light intake where it matters most. Users who depend on optical image stabilization in-lens — particularly those shooting handheld at telephoto distances — will find its absence a notable drawback, especially in situations where the camera body does not offer its own stabilization. It is also not ideal for those requiring very fast or decisive autofocus response in high-speed action scenarios, where a silent motor design may not deliver the same immediacy as more performance-focused alternatives.

General info:

lens type Telephoto, Zoom
lens mount Sony E
is weather-sealed (splashproof) ✓
Has a metal mount ✓
weight 665 g
Front element doesn't rotate ✓
Includes lens hood ✓
Lens hood is reversible ✓
filter size 67 mm

The Tamron 50-300mm f/4.5-6.3 Di III VC VXD is a telephoto zoom lens designed for the Sony E mount, weighing 665g with a 67mm filter thread. It features a metal mount and splash-proof weather sealing for added durability in the field. The front element remains stationary during focusing, and the included lens hood is reversible for convenient storage.

Optics:

maximum focal length 300 mm
minimum focal length 50 mm
has built-in optical image stabilization ✕
maximum angle of view 48°
minimum angle of view 8°
magnification 0.5x
optical zoom 6x

This lens covers a focal range of 50mm to 300mm, delivering a 6x optical zoom and angles of view spanning from 48° at the wide end down to 8° at full telephoto. It achieves a maximum magnification of 0.5x, making it capable of relatively close-up work within its range. The lens does not include built-in optical image stabilization.

Aperture:

wide aperture (main camera) 4.5f
widest aperture at maximum focal length 6.3f
aperture blades 9
Has rounded aperture blades ✓

The lens has a maximum aperture of f/4.5 at its shortest focal length, narrowing to f/6.3 at the telephoto end. Its diaphragm is built with 9 rounded aperture blades, which helps produce smoother, more natural-looking out-of-focus areas across the image.

Focus:

Can focus to infinity ✓
Has focus motor ✓
Has full-time manual focus ✓
has a silent focus motor built into the lens ✓
minimum focus distance 0.25 m

The lens includes a built-in silent focus motor that enables quick and quiet autofocus, and supports full-time manual focus override without needing to switch modes. It can focus as close as 0.25 meters and extends all the way to infinity, covering the full practical focusing range.

Benchmarks:

Final Verdict

The Tamron 50-300mm f/4.5-6.3 Di III VC VXD is a well-rounded Sony E-mount telephoto zoom that covers a genuinely useful focal range, backed by practical build features like weather sealing, a metal mount, and a silent autofocus motor with full-time manual control. Its 50–300mm reach combined with a 0.25m minimum focus distance gives it meaningful versatility across outdoor and event shooting scenarios. The variable aperture and absence of in-lens optical stabilization do place real demands on shooting conditions, particularly at the telephoto end, so users should factor in their typical environment and camera body capabilities. Overall, it represents a technically coherent option for Sony shooters seeking extended reach in a weather-resistant, well-featured package.