7Artisans 4mm F2.8 Fisheye Ultra Wide Angle Lens Manual Focus Prime Lens Compatible for Sony E Mount Mirrorless Camera A6300 A6400 A6500 NEX-3 NEX-3N NEX-5T NEX-5R A7 A7II A7RIII
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AI Verdict
This 201g, 225° ultra-wide angle F2.8 manual focus fisheye lens is for Sony E-mount APS-C camera users seeking extreme perspectives.
This lens is a situational fit for photographers who specifically want the extreme, distorted look of a 225° fisheye and are comfortable with manual focus. Its 201g weight and F2.8 aperture make it portable and capable in varied lighting, but its unique perspective isn't for everyday use.
If you need less distortion or autofocus, look for a rectilinear ultra-wide-angle prime lens with autofocus capabilities.
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Pros
- The 225° ultra-wide angle creates a strong visual impact and spatial imagery.
- Weighing only 201g (0.44 LB) and measuring 60mm x 54mm, it's compact and portable for travel.
- The closest focusing distance of 0.085m (3.34 inches) allows for unique close-up fisheye shots.
- Constructed with 10 glass elements in 8 groups and a metal body, providing a tactile feel.
- The F2.8 aperture allows for use in lower light conditions.
- Center sharpness is reported as 'extraordinary' even at F2.8, improving further at F4.
Cons
- It's a manual focus only lens, which can be challenging for fast-moving subjects or precise focusing.
- The 225° field of view is so wide that fingers, camera grips, or tripod legs can easily appear in the frame.
- The aperture ring is clickless, which some users do not prefer, and can be loose.
- Some users report softness, particularly in the corners, requiring stopping down to F5.6 or F8 for better results.
- No electronic contacts means no EXIF data for aperture or focal length is recorded by the camera.
Dimension Scores
Center sharpness is reported as 'extraordinary' at F2.8, but some users note corner softness and chromatic aberration in high-contrast areas.
This is a manual focus lens, so it has no autofocus capability.
The clickless aperture ring is beneficial for smooth aperture changes during video, but the manual focus can be challenging for moving subjects.
With a net weight of 201g (0.44 LB) and dimensions of 60mm x 54mm, it is exceptionally compact and lightweight.
Best For
- Creative landscape photography with exaggerated perspectives.
- Experimenting with extreme wide-angle effects and 'tiny planet' images.
- Capturing 360-degree panoramas with fewer shots (2-4 images).
- Close-up photography to create distorted, unique views of small subjects.
Not Recommended For
- Portrait photography where natural facial proportions are desired.
- Situations demanding fast autofocus for moving subjects or quick action.
- Photography requiring perfectly straight lines or minimal distortion.
Watch Out For
- The manual focus can be tricky to nail, especially at F2.8, potentially leading to missed sharp shots.
- The 225° field of view means you have to be extremely cautious with camera placement to avoid capturing your own fingers, camera strap, or tripod legs.
- The metal lens cap, while protective, is friction-based and some users find it loose, making it easy to accidentally touch the bulging front element.
- The clickless aperture ring can be adjusted accidentally, and some users find it too loose.
- Chromatic aberration can be noticeable in high-contrast areas, requiring post-processing correction.
Full Specifications
| ASIN | B0BGRRFLW1 |
| Brand | 7artisans |
| Lens Type | Fisheye |
| Item Weight | 1.01 pounds |
| Manufacturer | 7artisans |
| Item model number | 4mm F2.8EB |
| Product Dimensions | 2.36 x 2.36 x 2.36 inches |
| Compatible Mountings | Sony E |
| Focal Length Description | 4 mm |
What Buyers Say
Many users are surprised by the optical performance for the price, particularly the center sharpness at F2.8. The extreme 225° field of view is a consistent talking point, often leading to accidental inclusions of fingers or camera parts in the frame. The all-metal construction is frequently mentioned as a positive, contributing to a premium feel. However, the loose, clickless aperture ring and the friction-fit lens cap are recurring minor annoyances.
“Okay, so this lens is wild, like, you gotta be careful not to get your own thumb in the shot, but the pictures are so cool and different, totally worth the manual focus hassle for the price.”
Common Praise
- The 225° ultra-wide angle creates unique and fun perspectives.
- Center sharpness is very good, even wide open at F2.8.
- The all-metal construction feels durable and well-made.
- Its compact size and 201g weight make it easy to carry everywhere.
- The close focusing distance of 0.085m allows for creative close-up shots.
- Surprisingly low chromatic aberration for a lens of this type and price.
Common Complaints
- The manual focus can be difficult to use, especially for beginners or in dynamic situations.
- Accidentally capturing fingers, camera grips, or tripod legs in the frame due to the extreme wide angle.
- The clickless aperture ring is sometimes too loose and can be accidentally adjusted.
- Corner sharpness can be soft, requiring stopping down the aperture for better results.
- The friction-fit metal lens cap can be loose and easily dislodged.
Ownership Tips
- You'll quickly learn to adjust your grip to avoid getting your fingers in the frame.
- Finding focus can be easier by setting it to infinity and using a smaller aperture like F8 for most landscape shots.
- The small lever on the aperture ring helps, but it can still be bumped easily.
- Post-processing software can easily correct for the minor chromatic aberration that sometimes appears.
- It's a lens you grab when you want to make a statement, not for everyday shooting.
Frequently Asked Questions
Is this lens autofocus?
No, the 7Artisans 4mm F2.8 Fisheye is a manual focus prime lens, meaning you will need to adjust focus manually.
Will this lens work on my full-frame Sony A7III?
Yes, it is compatible with Sony A7 series cameras, but it's designed for APS-C sensors. On a full-frame camera, it will produce a circular image with a black vignette around it, or require shooting in APS-C crop mode.
Does this lens come with a lens hood?
The lens comes with a metal protection cap that slides over the front element, which acts as a form of protection, but it's not a traditional lens hood.
What is the minimum focusing distance of this lens?
The closest focusing distance for this lens is 0.085m (3.34 inches), allowing for very close-up shots.
Does this lens record EXIF data?
No, as a fully manual lens without electronic contacts, it does not communicate with the camera to record EXIF data like aperture or focal length.
Buying Guide
When looking at fisheye lenses, you're buying into a specific, distorted aesthetic. Don't expect straight lines; everything will curve. You need to be comfortable with manual focus, as many fisheyes, especially at this price point, don't have autofocus. The field of view is extreme, so you'll capture a lot more than you think, which means being mindful of what's around your camera.
Fisheye lens type
Unlike standard wide-angle lenses that try to keep lines straight, a fisheye intentionally distorts the image, creating a curved, spherical effect. This is for artistic expression, not for accurate architectural photography.
225° ultra-wide angle
This number tells you just how much of the scene the lens can capture. 225° is incredibly wide, meaning it sees almost behind itself. This is why you might accidentally get your own feet or camera strap in the shot if you're not careful.
Manual Focus
This means the lens doesn't automatically adjust focus. You turn a ring on the lens to get your subject sharp. It takes practice, especially for moving subjects, but for static scenes, it gives you precise control.
F2.8 aperture
The aperture controls how much light enters the lens and how much of your image is in focus (depth of field). F2.8 is a 'fast' aperture, letting in a lot of light for low-light shooting and allowing for a shallower depth of field, even with a wide lens.
Alternatives
If this lens isn't for you, look for rectilinear ultra-wide-angle prime lenses if you want wide views without the fisheye distortion, or consider lenses with autofocus if manual focusing isn't your preference.
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