Tamron 18-300mm f/3.5-6.3 Di III-A or Tamron 11-20mm F/2.8 APS-C? Which Tamron Model to Buy
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This comparison examines the tamron 18 300mm f 3 5 6 3 di iii a vs 11 20mm f 2 8 di iii. Both are APS-C mirrorless lenses from Tamron with moisture-resistant construction and fluorine coatings. They serve different needs. One offers a massive zoom range for versatility. The other provides a constant wide aperture for low light and creative control. You must choose based on your camera mount and shooting style.
Key differences
| Aspect | Tamron 18-300mm f/3.5-6.3 Di III-A VC Lens | Tamron 11-20mm F/2.8 APS-C |
|---|---|---|
| Lens Mount | Sony E | Fujifilm X-Mount |
| Focal Length | 18-300mm | 11-20mm |
| Maximum Aperture | f/3.5-6.3 | f/2.8 |
| Focus Motor | VXD linear motor | RXD stepping motor |
| Weight | 1.37 pounds | 11.8 ounces |
| Dimensions | 4.9 x 3 x 3 inches | 3.4 x 2.87 x 2.87 inches |
Which one should you choose?
Choose Tamron 18-300mm f/3.5-6.3 Di III-A VC Lens if
- You use a Sony E-mount camera and need a single lens for travel or events.
- You want a versatile zoom range from wide to telephoto without changing lenses.
- You prioritize a fast VXD autofocus system for precise tracking.
Choose Tamron 11-20mm F/2.8 APS-C if
- You use a Fujifilm X-mount camera and shoot landscapes or architecture.
- You need a constant f/2.8 aperture for better low-light performance.
- You prefer a lighter, more compact lens for everyday carry.
Verdict: The 18-300mm is the better choice for versatility on Sony E-mount cameras, covering a huge range in one package. The 11-20mm is ideal for Fujifilm X-mount users who prioritize wide-angle creativity and low-light capability. Your camera system dictates which lens is even compatible.
Zoom Range vs Speed Comparison
Zoom versatility
The Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD Lens offers a massive 16.6x zoom range. It covers 18mm to 300mm, making it a true all-in-one solution for APS-C cameras. You can shoot wide scenes and distant subjects without changing glass. In contrast, the Tamron 11-20mm F/2.8 APS-C is a fixed ultra-wide zoom. It only covers 11mm to 20mm. This limited range suits specific wide-angle needs but lacks the reach of the 18-300mm. If you want one lens for many situations, the 18-300mm provides significantly more flexibility. The 11-20mm is specialized for wide perspectives only.
Maximum aperture
Aperture controls light intake and depth of field. The Tamron 11-20mm F/2.8 APS-C maintains a constant f/2.8 maximum aperture throughout its zoom range. This allows more light and better background separation in low light. The Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD Lens has a variable aperture. It starts at f/3.5 at 18mm and narrows to f/6.3 at 300mm. This means less light reaches the sensor at the long end. For low-light shooting or creative blur, the 11-20mm is superior. The 18-300mm sacrifices speed for its extensive zoom capability. Choose based on whether you prioritize light gathering or range.
Camera compatibility
Mount compatibility is critical for lens usage. The Tamron 11-20mm F/2.8 APS-C is designed specifically for Fujifilm X-Mount APS-C mirrorless cameras. It will not fit Sony bodies. The Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD Lens is built for Sony E APS-C Mirrorless Cameras. These are two different ecosystems. You must choose the lens that matches your camera brand. Neither lens is cross-compatible. If you own a Fujifilm X-series camera, only the 11-20mm works. If you use a Sony APS-C body, only the 18-300mm is an option. Check your camera mount before purchasing either lens.
Focus mechanism
Autofocus speed and noise affect video and photo capture. The Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD Lens uses a VXD linear motor focus mechanism. This provides extremely fast and precise autofocus performance. The Tamron 11-20mm F/2.8 APS-C utilizes an RXD stepping motor. This Rapid eXtra-silent stepping Drive is noted for being quiet, which is ideal for video recording. Both systems are advanced for their respective designs. The VXD motor in the 18-300mm emphasizes speed and precision. The RXD motor in the 11-20mm emphasizes silence. Both are suitable for stills and video, but they prioritize different operational traits.
Physical size
Portability matters for travel and everyday carry. The Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD Lens measures 4.9 x 2.9 inches and weighs 1.37 pounds. It is compact for its range but still substantial. The Tamron 11-20mm F/2.8 APS-C is much smaller. It measures 3.4 x 2.87 inches and weighs only 11.8 ounces. This makes the 11-20mm significantly lighter and easier to carry for long periods. If you value minimal bulk, the 11-20mm is the clear choice. The 18-300mm is larger due to its complex optical design. Consider your bag space and weight tolerance when deciding.
Which Tamron lens fits your needs
Travelers wanting one lens for everything
You need versatility without swapping glass. The 18-300mm range covers wide scenes to distant subjects. The VXD motor ensures fast autofocus. It fits Sony E-mount cameras. The 16.6x zoom ratio handles most shooting scenarios in a single compact package.
Street photographers using Fujifilm X-mount
You prioritize image quality and low light performance. The constant f/2.8 aperture lets in more light. The 11-20mm focal length provides a wide field of view. The RXD motor operates quietly for video. It weighs only 11.8 ounces for easy carrying.
Videographers needing silent and sharp focus
The RXD stepping drive is designed for extra-silent operation during recording. The constant f/2.8 aperture maintains exposure consistency. The wide angle captures more of the scene. Moisture-resistant construction protects against outdoor elements. The compact size keeps your rig balanced and manageable.
The products compared
Tamron 18-300mm f/3.5-6.3 Di III-A VC Lens
Best for: travelers needing wide to telephoto reach
- Lens Mount
- Sony E
- Focal Length
- 18-300mm
- Maximum Aperture
- f/3.5-6.3
- Sensor Format
- APS-C
- Focus Type
- Autofocus (VXD)
- Color
- Black
View on Amazon: Tamron 18-300mm f/3.5-6.3 Di III-A VC Lens Affiliate link
This is a 16.6x all-in-one zoom lens for Sony E-mount APS-C mirrorless cameras. It covers 18-300mm with a variable maximum aperture of f/3.5-6.3. The lens uses a VXD linear motor for fast autofocus. It weighs 1.37 pounds and measures 4.9 x 3 x 3 inches. It includes moisture-resistant construction and a fluorine coating. You get high resolving power from center to corners.
Pros
- 16.6x zoom range from 18-300mm
- VXD linear motor for precise autofocus
- Moisture-resistant construction with fluorine coating
- Compact size at 4.9 x 3 x 3 inches
Cons
- Variable aperture narrows to f/6.3 at 300mm
- Heavier at 1.37 pounds compared to prime options
- No weather sealing gaskets mentioned in data
Good fit if
- You want one lens for wide to telephoto shots
- You shoot in Sony E-mount APS-C systems
- You need fast autofocus for moving subjects
Skip if
- You require constant wide apertures for low light
- You prefer lightweight prime lenses under 1 pound
- You need a lens for full-frame cameras
Verdict: Tamron 18-300mm f/3.5-6.3 for Sony E is a versatile tool for travelers who need reach without swapping lenses. It suits those who prioritize convenience and zoom range over maximum aperture speed.
Tamron 11-20mm F/2.8 APS-C
Best for: Fujifilm X-mount ultra-wide photography
- Lens Mount
- Fujifilm X
- Focal Length
- 11-20mm
- Maximum Aperture
- f/2.8
- Sensor Format
- APS-C
- Focus Type
- Autofocus (RXD stepping motor)
- Minimum Focusing Distance
- 5.9 inches
View on Amazon: Tamron 11-20mm F/2.8 APS-C Affiliate link
This Tamron lens is an ultra-wide zoom for Fujifilm X-mount APS-C cameras. It offers a constant F/2.8 aperture across its 11-20mm range. The RXD stepping motor provides fast and silent autofocus for both photos and video. You get a close minimum focusing distance of 5.9 inches. Its compact size and moisture-resistant build make it suitable for everyday shooting.
Pros
- Constant F/2.8 maximum aperture
- RXD stepping motor for silent autofocus
- 5.9-inch minimum focusing distance
- Moisture-resistant construction
Cons
- Narrow 11-20mm focal range
- Fujifilm X-mount only
- No image stabilization listed
Good fit if
- You need a fast ultra-wide lens for Fujifilm X-mount cameras
- You shoot video requiring silent autofocus
- You want a compact lens for travel
Skip if
- You use Sony E-mount cameras
- You require a long telephoto zoom range
- You need built-in image stabilization
Verdict: Tamron 11-20mm F/2.8 RXD is a specialized ultra-wide tool for Fujifilm users. It fits photographers who prioritize speed and compactness over zoom versatility.
Specifications side by side
| Spec | Tamron 18-300mm f/3.5-6.3 Di III-A VC Lens | Tamron 11-20mm F/2.8 APS-C |
|---|---|---|
| Lens Mount | Sony E | Fujifilm X |
| Focal Length | 18-300mm | 11-20mm |
| Maximum Aperture | f/3.5-6.3 | f/2.8 |
| Sensor Format | APS-C | APS-C |
| Focus Type | Autofocus (VXD) | Autofocus (RXD stepping motor) |
| Minimum Focusing Distance | not stated | 5.9 inches |
| Color | Black | Black |
| Aperture | not stated | f/2.8 |
| Dimensions | 4.9 × 3 × 3 inches | 3.4 × 2.87 × 2.87 inches |
| Weight | 1.37 pounds | 11.8 ounces |
| Size | Sony E Mount | 86.2 |
| Model | AFB061S700 | AFB060X700 |
Frequently asked questions
Which lens is lighter and more compact?
The Tamron 11-20mm F/2.8 is the lighter and more compact option. It weighs 11.8 ounces and measures 3.4 inches in length. The Tamron 18-300mm f/3.5-6.3 weighs 1.37 pounds and is 4.9 inches long. If you prioritize portability, the 11-20mm model is the better choice for your kit.
Can I use the Tamron 18-300mm on Fujifilm cameras?
No, the Tamron 18-300mm f/3.5-6.3 Di III-A is designed for Sony E-mount cameras. It will not fit Fujifilm X-mount bodies without an adapter, which may not be practical. If you use a Fujifilm camera, you should look at the Tamron 11-20mm F/2.8, which is built specifically for that mount.
Which lens offers a wider field of view?
The Tamron 11-20mm F/2.8 offers a significantly wider field of view. Its minimum focal length is 11mm, compared to 18mm on the 18-300mm lens. This makes the 11-20mm ideal for landscapes and architecture. The 18-300mm starts at 18mm, which is still wide but not as expansive as the ultra-wide 11mm option.
Which lens is better for telephoto shooting?
The Tamron 18-300mm f/3.5-6.3 is the clear choice for telephoto work. It extends to 300mm, allowing you to capture distant subjects with ease. The Tamron 11-20mm F/2.8 maxes out at 20mm, which is strictly for wide-angle shots. If you need reach, the 18-300mm model provides the necessary focal length range.
Is the Tamron 11-20mm compatible with Sony E-mount?
The Tamron 11-20mm F/2.8 listed here is built for Fujifilm X-mount cameras. It is not natively compatible with Sony E-mount bodies. If you shoot with Sony, the Tamron 18-300mm f/3.5-6.3 is the available option in this comparison. Always check the lens mount specification to ensure it matches your camera body.
Which lens has a constant aperture?
The Tamron 11-20mm F/2.8 features a constant f/2.8 aperture throughout its zoom range. This means you get consistent exposure and background blur from 11mm to 20mm. The Tamron 18-300mm has a variable aperture that ranges from f/3.5 to f/6.3. It changes depending on the focal length you are using.