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Product Information
The Fantasea SharpEye Lens M55 is an accessory macro lens that attaches over a housing's lens port and can be installed or removed during the course of a dive. It uses a single aspherical element to magnify the subject, letting the camera focus at short distances for sharp close-up images.
Who it is for
This lens is built for underwater photographers who want closer, sharper shots of fish, corals, textures and other small subjects. Because it mounts and unmounts mid-dive, it suits shooters who want the option to switch between standard wide shots and macro close-ups without surfacing or ending the dive.
Key details
The SharpEye Lens M55 pairs a single aspherical lens element with hard coating and AR coating, housed in an aluminum barrel with black anodize finish. It is rated for underwater use and delivers a 333mm underwater focal length.
- Lens construction: single aspherical element
- Working media: water
- Focal length: 333mm (underwater)
- Mounting: M55 thread mount
- Lens coating: hard coating and AR coating
- Barrel material: aluminum with black anodize
- Weight: 26g
- Dimensions: 60mm x 10mm (D)
Compatibility and sizing
The lens mounts directly on housings or ports with a 55mm thread. It can also be fitted to other lens port sizes using a compatible adaptor. Confirm with your housing manufacturer or with us before purchase that no additional adaptor is required for your specific setup.
DiveCatalog.com is an authorized Fantasea dealer and a dive shop in Irvine, California, operating since 2003. Call 888-701-4017 or chat with us if you have questions about fit or compatibility with your housing before you order.
- Single aspherical element: The lens uses one aspherical optical element to magnify the subject for close-up shooting.
- Mid-dive install and removal: It can be attached to or detached from the housing port during the course of a dive.
- Underwater focal length: Delivers a 333mm focal length when shooting underwater.
- M55 thread mount: Mounts on 55mm threaded lens ports.
- Adaptor compatible: Can be used on other lens port sizes with a compatible adaptor.
- Hard and AR coating: The optical element has both hard coating and anti-reflective (AR) coating.
- Anodized aluminum barrel: Barrel is made of aluminum with a black anodize finish.
- Compact and lightweight: Weighs 26g with dimensions of 60mm x 10mm (D).
| Lens Construction | Single aspherical element |
| Working Media | Water |
| Focal Length (Underwater) | 333mm |
| Mounting | M55 thread mount |
| Lens Coating | Hard coating and AR coating |
| Barrel Material | Aluminum with black anodize |
| Weight | 26g |
| Dimensions | 60mm x 10mm (D) |
| SKU | 5122 |
| UPC | 665309051223 |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Does the Fantasea SharpEye Lens M55 need an adaptor to fit my housing?
It mounts directly on housings or ports with a 55mm thread, no adaptor needed. For other port sizes, it can be used with a compatible adaptor. Confirm with your housing's documentation or with us before purchase that no additional adaptor is required for your specific setup.
Can the SharpEye Lens M55 be attached or removed while diving?
Yes. It is designed to be installed on or removed from the housing's lens port during the course of a dive, so you can switch between standard and macro shooting without surfacing.
What is the underwater focal length of the SharpEye Lens M55?
The lens has a 333mm focal length when used underwater. It uses a single aspherical element with hard and AR coating to magnify the subject and allow close-focus shooting.












