Travel pushes gear in ways studio work never does. One lens that can handle streets, interiors, details, and distant scenes changes how you move, how long you stay out, and how often you swap glass.
Coming to you from Bobby Tonelli, this practical video looks at the Tamron 25-200mm f/2.8-5.6 Di III VXD G2 lens and why it exists at all. The focus stays on using one lens on the road instead of building a kit around edge cases. Tonelli frames it as a travel-first tool, not a spec sheet exercise, and tests it the same way you would actually use it. The lens is paired with a Sony a9 III, walking through crowded streets, moving subjects, and mixed light without babying the setup. That context matters because it shows what compromises look like outside of charts.
The design discussion is brief and grounded in use. You hear about the telescoping barrel, the zoom lock at 25mm, and the USB-C port for firmware updates through Tamron’s software. Weight comes in at 575 g, which changes how long the camera stays in your hand instead of your bag. The 67mm filter thread matches other Tamron lenses, which simplifies filters when packing light. None of this is framed as premium or flashy, just functional decisions that reduce friction when moving all day.
Autofocus performance is described without hype. It is quick, reliable, and consistent for street work and casual video, without pretending it competes with top-tier sports glass. Tracking works, focus does not hunt, and video clips shot while walking do not fall apart. Sharpness holds across the zoom range in real scenes, including backlit situations where flare and color fringing usually show up. The emphasis stays on whether images hold together when you are not controlling the environment.
Key Specs
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Focal Length: 25 to 200mm
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Maximum Aperture: f/2.8 to 5.6
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Minimum Aperture: f/16 to 32
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Lens Mount: Sony E
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Format Coverage: Full frame
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Minimum Focus Distance: 6.3" / 16 cm (wide) to 2.6' / 80 cm (tele)
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Maximum Magnification: 0.53x (1:1.9 macro)
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Optical Design: 18 elements in 14 groups
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Aperture Blades: 9, rounded
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Focus Type: Autofocus
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Image Stabilization: No
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Filter Size: 67 mm
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Weight: 1.3 lb / 575 g
Variable aperture is where expectations need to be set early. You get f/2.8 at the wide end, but by around 100mm the lens is already at f/5.6 and stays there. That affects shutter speed and ISO once daylight fades, especially when people are moving. Tonelli shows real examples where ISO climbs quickly in evening conditions, which is the trade you accept for range and size. Macro capability is useful but limited to the wide end, giving close focus at 25mm while falling off as you zoom. Check out the video above for the full rundown from Tonelli.
4 Comments
"Maximum Magnification: 0.53x"
Wow - that is excellent close up focusing ability for a general all-around lens! In fact, it is just about as good as these two lenses Canon has that they actually call "macro" lenses, even though they aren't.
"The focus stays on using one lens on the road instead of building a kit around edge cases."
This lens would actually enable most photographers to do that. Due to its close-focusing ability, one would not need to keep a true macro lens in the bag, as this lens will suffice for most close-up opportunities.
I clicked on the link to see this at B&H .... $899 seems quite expensive for a 3rd party lens of this focal length range and this aperture. I mean it is slow and not all that long, so it doesn't require a big front element, so I wonder why the high price when 3rd party lenses have traditionally been meant as budget options. Hmmmm. I have great interest in this lens, but will have to wait until I can find a used one for $450 or less, and that may very well not happen until I am well into my 60s.
How does the Tamron compare to the even more versatile Sigma 20-200?
I think Sony owners are smart enough to stay in their own market place. That f/2.8 is just a hook but not constant through a whole range. Back in March 2015 when Sony was just getting started and lenses were few there came the FE 24-240mm F3.5-6.3 OSS Full-frame Telephoto Zoom Lens with Optical SteadyShot a 10X zoom but just a little bit more with APS-C you get 36-360mm, what most reviews forget that a full frame camera can do is also APS-c mode that crops in camera getting the same image as a big zoom. Today being somewhat old or long in the tooth yes in the used market for way less. Remember also Lenses as well as cameras are for ever and never cheap for tech was at the top when they come out, Used on KEH for $495 or Amazon for $945 and if you want a warranty on Sony $1,249.
For me I bought in 2015 and used on the A7SM1 and today on the A7R5, it has served me with great images so much I bought one for my bother who I also gave a A7M3.
This lens lives on my A7RV and with me anytime home or going to the store as well as travel.
while i am at it another lens of 2013 for Sony APS-C cameras but with the E mount of the new A7 line is the E 10-18mm (15-27mm in 35mm) f/4 OSS that works in Full Frame mode at 12-18mm (18mm if you remove the lens light shield) that has threads for filters up front. On KEH for $486 still not cheap but a great low price. I found on Trey Ratciff Stuck in Customs where he did some testing in 2014. It is as good as or better that Sony 12-24mm f/4 or the f/2.8 why? because it so small where they are so heavy and big, I bought anyway but found they need external filters and their holders.
Real Sony users have no fear of f/4 or even f/5.6 just have to use a longer SS or a little bump in ISO.
The two lenses in my tear drop bag and I got in my bag 12-360mm of my choice to use. And yes i have most all Sony lenses to chose from.
Just have fun with low cost toys!!!!
1. 2015 with A7SM1
2. is with the A7RV 2024 while driving through local park and saw the some rockeries begging to be built. at 360mm in camera cropping, so to speak!
3. A7SM1 using on camera filter app
4. 2015 A7SM1 using bracketing 5 at +/- 3EV
Yes, I agree that the 24-240 is a most useful focal length range!
I currently use a 10x zoom lens for my everyday shooting, and can attest to the fact that such a versatile zoom yields many more quality images than I would ever get with a 4x or 3x zoom.
Will your 24-240mm fit on the latest Sony cameras natively, or does it require an adaptor?