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Tamron Announces 100-400mm f/4.5-6.3 Di VC USD | New Ultra Telephoto for Full Frame Cameras

By Justin Heyes on September 16th 2017

Zoom lenses come in two flavors: a fixed aperture such as f/2.8 or f/4, or a variable aperture where the maximum aperture decreases as the lens is zoomed. Most lower-priced zooms are the latter, as the design allows manufacturers to keep the cost down, reducing bulk, and adding image stabilization.

While fixed aperture lenses are often associated with being the top self where image quality is concerned, higher-end variable aperture lenses do have their benefits. If you were to take the Tamron 70-200mm f/2.8 G2 and add the 1.4x teleconverter your effective focal length and aperture would be 98-280 f/4 with reduced AF performance and increased weight. Whereas a lighter lens like the new Tamron 100-400mm f/4.5-6.3 Di VC USD would be beneficial for those who need long reach without hindered AF.


Just announced, the Tamron 100-400mm f/4.5-6.3 Di VC USD (Model A035) is a new ultra-telephoto for full frame cameras. The new lens features 3 LD (Low Dispersion) lens elements for greater aberration reduction and Tamron’s original eBAND Coating for superior anti-reflection performance.

The A035 comes in at 39.3 oz, making it the lightest lenses in its class thanks to magnesium alloy in key areas of the lens barrel, which improves weight reduction, strength, and portability.

The Model A035 is fully compatible with Tamron’s 1.4X teleconverter and the Tamron TAP-in Console, which enables lens customizations, focus adjustments, and VC-mechanism adjustments among others. Rounding out the Model A035 is Tamron’s excellent vibration compensation, Dual MPU (Micro Processing Units), and an optional Arca Swiss compatible tripod mount.

Tamron’s 100-400mm f/4.5-6.3 Di VC USD  will come in Canon EF and Nikon F mounts. The expected launch date at the end of 2017 with no price announced as of yet. You can sign up to be notified when more details are announced here.

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Justin Heyes wants to live in a world where we have near misses and absolute hits; great love and small disasters. Starting his career as a gaffer, he has done work for QVC and The Rachel Ray Show, but quickly fell in love with photography. When he’s not building arcade machines, you can find him at local flea markets or attending car shows.

Explore his photographic endeavors here.

Website: Justin Heyes
Instagram: @jheyesphoto

Q&A Discussions

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  1. adam sanford

    Correction: the product is not announced.  Tamron simply announced it was *in development* — nothing more. 

    Why tease with a fully spec’d open-hand reveal like this?  This appears to have solely been done to pre-empt folks from buying the Sigma 100-400 C …which happens to be available right now.  Tamron is late to the party and appears to be resorting to some very unorthodox marketing here.

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