VILTROX 28mm f4.5 Pancake Lens for Sony E, Auto Focus 28mm f/4.5 FE Chips-Size Ultra-Thin Full Frame Lens for Sony E Mount
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AI Verdict
A 60g, 15.3mm thick 28mm f/4.5 fixed-aperture autofocus lens for Sony E-mount, designed for extreme portability over optical performance.
This lens is a situational fit because its 60g weight and 15.3mm thickness make it uniquely portable for a full-frame autofocus lens. However, the fixed f/4.5 aperture and reported autofocus inconsistencies limit its usability to specific scenarios where size is the absolute priority over optical flexibility or performance.
If you need more control over aperture or better low-light performance, look for a 28mm prime lens with a wider maximum aperture (e.g., f/2.8 or f/2) and an aperture ring.
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Pros
- Weighs 60g and is 15.3mm thick, making it one of the smallest and lightest full-frame AF lenses for Sony E-mount.
- Features autofocus for Sony E-mount cameras.
- Includes a USB-C port for firmware updates.
- Comes with an inbuilt sliding lens cap, eliminating the need for a separate cap.
- Constructed with a metal lens barrel for durability.
Cons
- Fixed f/4.5 aperture, meaning no adjustment for depth of field or low light.
- Lacks a manual focus ring, making precise manual focusing impossible.
- Autofocus can be slow, prone to hunting, and may cause camera lock-ups.
- Image quality shows strong vignetting, softness in corners, and low contrast.
- No filter attachment thread, preventing the use of screw-in filters or lens hoods.
Dimension Scores
Corners are soft, vignetting is strong, and contrast can be low, with some users finding images worse than smartphone photos.
Autofocus is present but users report it can be slow, hunt, and cause camera issues, even with the latest firmware.
Autofocus pulsing makes it problematic for video, and the fixed f/4.5 aperture is limiting for varying light conditions.
At 60g and 15.3mm thick, it's exceptionally small and light for a full-frame AF lens, often described as a body cap.
Best For
- Street photography where discretion and minimal size are key.
- Travel photography for keeping camera setups lightweight.
- As a body cap replacement that also offers autofocus.
- Situations where a fixed 28mm wide-angle perspective is desired.
Not Recommended For
- Low-light photography due to the fixed f/4.5 aperture.
- Professional photography requiring consistent sharpness and optical performance.
- Video recording, as autofocus can pulse and is not designed for it.
Watch Out For
- Autofocus can be slow and hunt frequently, with one user reporting it was 'terrible' and caused camera lock-ups.
- Image quality can be soft, especially in the corners, and exhibit strong vignetting that 'ruins pictures' for some users.
- The fixed f/4.5 aperture means no control over depth of field or light intake, limiting creative options.
- The AF/MF switch on the lens may default to M when the camera wakes up, requiring manual switching back to AF-S.
- No filter threads, so you can't attach any screw-in filters or a traditional lens hood.
Full Specifications
| ASIN | B0DHKR3KC8 |
| Brand | VILTROX |
| Lens Type | Wide Angle |
| Item Weight | 2.12 ounces |
| Manufacturer | Shenzhen Jueying Technology Co., Ltd. |
| Item model number | AF 28/4.5 FE |
| Product Dimensions | 0.59 x 2.5 x 2.5 inches |
| Compatible Mountings | Sony FE |
| Camera Lens Description | 28mm f4.5 Sony FE |
| Focal Length Description | 28mm f4.5 Sony FE |
What Buyers Say
Many users are drawn to this Viltrox lens for its incredibly compact size and light weight, often describing it as a 'body cap' with autofocus. However, the trade-offs for this portability are significant, with recurring complaints about its fixed f/4.5 aperture and inconsistent autofocus performance, including hunting and even camera lock-ups for some. Image quality is frequently cited as a compromise, with softness in the corners and noticeable vignetting.
“Dude, this lens is SO tiny, it's like nothing is even on my camera, but the autofocus is kinda janky and the pictures are only okay, especially at night. I almost sent it back because it kept locking up my A7.”
Common Praise
- Weighs only 60g, making the camera feel like it has just a body cap attached.
- Extremely thin at 15.3mm, allowing for a truly pocketable camera setup.
- Provides autofocus, which is rare for such a compact full-frame E-mount lens.
- The inbuilt sliding lens cap is a convenient feature.
- Affordable price point for an autofocus full-frame lens.
Common Complaints
- Fixed f/4.5 aperture limits use in low light and depth of field control.
- Autofocus can be slow, prone to hunting, and occasionally causes camera freezing.
- Image sharpness is compromised, particularly in the corners, and vignetting is strong.
- No manual focus ring, removing the option for precise manual control.
- Lacks filter threads, so no ND or polarizing filters can be used.
Ownership Tips
- The fixed f/4.5 aperture means you'll always be shooting at that depth of field, which can be limiting for creative blur.
- You'll need to be mindful of lighting conditions, as f/4.5 isn't bright for indoor or evening shots.
- The autofocus might require adjusting camera settings to prevent constant hunting or issues with the AF/MF switch.
- Without filter threads, you can't use protective UV filters or creative filters like polarizers.
- The built-in lens cap is convenient but some users find it feels a bit flimsy.
Frequently Asked Questions
Does this lens have a variable aperture?
No, the aperture is fixed at f/4.5 and cannot be adjusted.
Can I manually focus with this lens?
No, the lens does not have a manual focus ring, so it is autofocus-only.
Is this lens suitable for video?
User feedback suggests autofocus can pulse, making it less suitable for video recording.
Can I use filters with this lens?
No, the lens does not have filter threads, so screw-in filters cannot be attached.
How small and light is this lens?
It weighs 60g and is 15.3mm thick, making it one of the smallest and lightest full-frame AF lenses for Sony E-mount.
Does it come with a lens cap?
It has an inbuilt sliding lens cap that covers the front element.
Buying Guide
When you're looking at a pancake lens like this, you're usually prioritizing size and weight above almost everything else. This Viltrox 28mm f/4.5 is designed to make your full-frame Sony camera feel as compact as possible, almost like a point-and-shoot. The trade-off is often in optical performance and features, so don't expect it to compete with larger, more expensive primes in terms of sharpness or low-light capability.
Fixed f/4.5 aperture
This means the lens always shoots at f/4.5. You can't open it wider for more light or shallower depth of field, nor can you stop it down for more sharpness or deeper depth of field. It's like having a camera with only one shutter speed option.
60g weight, 15.3mm thickness
This is incredibly small for a full-frame lens. It makes your camera much less noticeable and easier to carry, almost like just having a body cap on your camera.
28mm focal length
This is a wide-angle perspective, similar to what many smartphone cameras offer. It's good for landscapes, architecture, and fitting a lot into your frame, but it's not ideal for close-up portraits or isolating subjects.
Autofocus only, no manual focus ring
The camera handles all the focusing. If you prefer to fine-tune focus yourself, or if the autofocus struggles, you're out of luck because there's no physical ring to turn.
Alternatives
If you need more control over light and depth of field, look for a 28mm prime lens with a wider maximum aperture (e.g., f/2.8 or f/2) and a manual aperture ring. If autofocus reliability is paramount, consider lenses from established brands known for their AF performance.
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