Product Comparison: Tamron 100-400 mm F/4.5-6.3 Di VC USD vs Sigma 100-400 mm F5-6.3 DG OS HSM

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General Specifications
100-400 mm F/4.5-6.3 Di VC USD
100-400 mm F5-6.3 DG OS HSM
About the Product
Heavyweight performance from a lightweight lens: The Tamron 100-400mm F/4.5-6.3 Di VC USD (A035) is a highly portable, ultra-telephoto zoom lens with AF precision for shooting in-the-moment action clearly and easily.
The Sigma 100-400mm 5-6.3 DG HSM OS Contemporary is a state-of-the-art telephoto zoom that brings a new level of portability and quality to the super telephoto market.
Key Specs
Mount Type
Canon EF
Sigma SA-mount
Maximum Aperture
4.5 /f
5 /f
Minimum Focal Length
100 millimeters
100 millimeters
Maximum Focal Length
400 millimeters
400 millimeters
Lens Type
Telephoto zoom
Telephoto zoom
What customers say about "Key Specs"
Tamron 100-400 mm F/4.5-6.3 Di VC USD Lens for Canon - Black
  • I've used many lenses of similar size and focal length, and for me at least this one hits the target perfectly.
  • Such a focal length is new to me, and there is a learning curve, particularly travelling fast and light hand-held.
  • This is a fun lens to use, and performs better than expected given its price range. Great focal length.
  • I can quite happily use half the focal length for shutter speed. Focusing at such extreme focal lengths is new challenge
  • Shitty focal length that works worse than my old lens.
Sigma 100-400 mm F5-6.3 DG OS HSM Lens - Black
  • The Nikon does beat the Sigma when it comes to image stabilisation and the maximum aperture at 400mm is f/5.6 on the Nikon and f/6.3 on the Sigma.
  • Great size and build, sharp across all focal lengths and with fast AF.
  • This is a short initial review for a potential buyer. This lens is sharp (for my purposes) at all focal lengths, especially at 400mm.
  • It should go without saying that any lens with a maximum aperture of f/5.6 or slower isn't going to be a stellar performer in low light, so that needs to be taken into consideration.
  • Slow lens: max aperture decreases quickly. It's f/5.3 at 125mm, f/5.6 at 155mm, f/6 at 220, & f/6.3 at 350.
Size & Weight
3.4 in.
3.4 in.
3.4 in.
3.4 in.
7.8 in.
7.2 in.
40 oz.
40.9 oz.
What customers say about "Size & Weight"
Tamron 100-400 mm F/4.5-6.3 Di VC USD Lens for Canon - Black
  • I wanted a lens that wasn't too heavy, this one is lighter than the Canon 400mm F5.6L.
  • Purchased due to weight difference between tamron and Nikon being far lighter and easier to carry.
  • I purchased the lens a few months ago, i use for aircraft photography, it is sharp, superb quality, light weight and very well made.
  • Too big to fit in my bag. I’m upset that I have to carry it in my hands.
  • Large and heavy, which causes discomfort during long photo shoots.
Sigma 100-400 mm F5-6.3 DG OS HSM Lens - Black
  • The lens is not heavy for it's size, but even so I do miss not having a tripod mount which is the only negative point I would raise.
  • Amazingly compact and light compared to other long zooms.
  • In sum, this lens comes close, but not as close as I would like. It is close in performance to the more expensive lenses, and the compact size is a huge plus.
  • If you do not use a tripod, then you will have problems with its weight.
  • It is too heavy for continuous photography. Hands are incredibly tired.
Minimum Focus Distance
59 in.
63 in.
Field Of View
24°24' - 6°12'
Zoom Type
Manual/Auto Focus
Push/Pull zooming
Optical Stabilization
What customers say about "Imaging"
Tamron 100-400 mm F/4.5-6.3 Di VC USD Lens for Canon - Black
  • It has a closer focusing ability that will be very handy me in spring and summer.
  • This is a keeper and one of the constant user lenses for so many days ot, two bodies with a wide angle zoom and this, sorted.
  • Manual zooming and focusing are low-geared and smooth. Control rings are wide and ribbed for good grip.
  • When I've hit focus, image quality has been exceptional - even to see crystal-clear background reflections in a gull's eye at 10m. That's what I mean by fun to use.
  • Focus was quick and overall I was pleased with the images I got. I did plan to sell it when I returned home but decided to keep it and have used it numerous times since.
Sigma 100-400 mm F5-6.3 DG OS HSM Lens - Black
  • The lens is also beautifully designed, and I am really appreciating the push-pull mechanism to adjust the focal length. It gives me less arm fatigue than having to turn the focal length ring.
  • If you want a sharp, fast focussing telephoto zoom and don't want to break the bank, the Sigma is a genuinely great choice.
  • Solidly built with very smooth zoom and manual focus. Excellent price for such a long zoom.
  • I just didn't like the zoom ring's inconsistent zoom spacing nb 300-400mm was much shorter travel than 100-200 and 200-300.
  • I was unable to get this Sigma lens to focus sharply on either Autofocus nor on Manual. Autofocus was hopeless.
Brand Compatibility
Sensor Type Compatibility
Lens Groups and Elements
17 Elements in 11 Groups
21 Elements in 15 Groups
Number of Aperture Blades
Filter Diameter
67 millimeters
67 millimeters
eBAND Coating, Moisture-resistant construction, TAMRON TAP-in Console™, Fluorine Coating, APS-C format: 15°54' - 4°01'
Hyper Sonic Motor, Sigmа USB Dock, Dust and splash-proof construction, Water and oil-repellent coating
What customers say about "Features"
Tamron 100-400 mm F/4.5-6.3 Di VC USD Lens for Canon - Black
  • The AF is fast and accurate, plus the VC, (their version of Canon's IS) is superb!
  • Be careful with getting this lens if you use one of the canon new mirrorless cameras. Tamron state compatibility from firmware version 1.3 which is from Feb 2019.
  • Super sharp with very good vc it can be fine tuned with the tap in console.
  • The front surface of the lens element is coated with a protective fluorine compound that is water- and oil-repellant.
  • If you happen to get a lens with older firmware, you will need the very expensive Tamron Tap in console, to update the firmware.
Sigma 100-400 mm F5-6.3 DG OS HSM Lens - Black
  • After customizing the OS and AF of this lens with the USB dock, things seem to be working a lot better.
  • I recommend purchasing this lens with the Sigma USB dock. While the in body Optical Stabilization (OS) on this lens is great.
  • Both the rotating zoom and focus rings feel very smooth while offering the right amount of resistance so that nothing feels too loose.
  • A push/pull zooming function and a new Hyper Sonic Motor (HSM) allow for a more responsive approach to photography.
  • Had a few OS issues in certain conditions which led me to pay for the USB dock.
Warranty / Certifications
Other Information
609.00 $

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