Ikelite 200DLM/D Underwater Housing for Canon EOS R100 with 18–45mm & 10–18mm Lenses [Fiber Optic Update]
Fiber-optic TTL, vacuum safety, and a ready-to-dive port kit for Canon RF-S 18–45mm and 10–18mm lenses.
The Ikelite 200DLM/D Underwater Housing Kit for the Canon EOS R100 is a complete, ready-to-dive solution built around a lightweight, durable Ikelite underwater housing and a matched DLM lens port and zoom gear. This combination works with the included Canon RF-S 18–45mm kit lens and is also compatible with the RF-S 10–18mm wide-angle zoom (lens not included), giving you flexible coverage for reef scenes, travel, and everyday diving. The included port can be swapped for other DLM-series ports, so you can add popular wide-angle, zoom, and macro lenses later as your system grows.
Out of the box, this Ikelite housing kit includes an integrated Fiber Optic TTL Transmitter, Dual Tray with Dual Handles, Vacuum Leak Detection System, and spare O-rings. It’s a full-featured, waterproof housing for the Canon EOS R100 mirrorless camera, suitable for scuba, snorkel, surf, pool, and most in-water use. The custom ABS-PC body is lighter than aluminum yet tough enough for rough conditions, and Ikelite lens ports are among the lightest available while still standing up well to surf and boat use. You can engage supported zoom and focus rings via simple external gearing, use the camera’s built-in Wi-Fi above water to pull images without opening the housing, and rely on the clear back and vacuum system for peace of mind—every unit reflects Ikelite’s long experience building reliable Ikelite housings for demanding underwater shooters.
Here are some of the key features of the Ikelite Canon EOS R100 200DLM/D underwater housing:
- What it is: Three options available: Housing only; Housing with Port, or Housing with Port, Camera and Lens. 200DLM/D ikelite housing + DLM dome port and zoom gear kit for Canon EOS R100 with RF-S 18–45mm and RF-S 10–18mm lenses, including tray, dual handles, and vacuum leak detection.
- Best for: Travel, reef wide-angle, everyday diving, and entry-level to intermediate shooters wanting simple, automatic fiber-optic TTL with Ikelite strobes.
- Not for: Users needing electrical sync bulkheads, support for non-R100 camera bodies, or extra-large RF zooms that exceed the DLM system’s diameter limits.
- Key compatibility: Canon EOS R100 body with RF-S 18–45mm f/4.5–6.3 IS STM and RF-S 10–18mm f/4.5–6.3 IS STM using DLM Dome Port #5516.15 and Zoom Gear #5515.14 (included in this configuration).
- Important limitations: AF-only operation; specific ports, zoom gears, and anti-reflection rings are required per lens; non-Ikelite fiber-optic strobes work in manual only.
Key Features:
- Ergonomics - The Ikelite R100 Housing has excellent ergonomics. Buttons, levers and dials are located at your fingertips. The curved trigger levers for shutter and back button focus can hug the side of the housing if shooting without a grip or be extended for easy reach from an optional handle. AF-ON is accessible with your thumb by a lever control at the side of the housing. When combined with back button focus, this provides a shooting method far easier than attempting to half-press the camera's shutter button. Soft-touch control knobs add comfort and extra grip to the main dial, quick control dial, power switch, and lens release. Stainless steel, direct-drive rotating controls are virtually fail-safe and user serviceable and adjustable in a pinch.
- Setup—Installation and removal of the camera is very easy. A small mounting plate attaches to the bottom of the camera and secures in the front of the housing. The camera mounting plate does not need to be removed from the camera for surface use or when changing the battery or memory cards. The mounting plate features a 1/4-20 threaded mount on the bottom so that it can be attached to a tripod on the surface.
- Vacuum Testing - The optional Ikelite Vacuum Kit allows you to draw a vacuum on the housing to check for proper assembly prior to entering the water and provides peace of mind.
- TTL Strobe Exposure - Ikelite offers a fast and accurate TTL converter - Ikelite DL5 DS Link Canon TTL Converter and CT1 TTL Hotshoe Kit which can be programmed to the camera's specific TTL protocol and supports both first curtain and rear curtain sync up to the camera's maximum flash sync speed. Exposure compensation can be used added or subtracted in the camera. A push button and indicator light on the side of the converter make it simple to switch back and forth between TTL and manual exposure underwater.
- Strobe Compatiblity - Strobes can be connected via electronic sync cord, fiber optic strobes are not compatible.
- Port Setup - Choose the correct port components on the lens you will be shooting. For more details on port set-ups for your lens combinations, please consult our Ikelite port charts.
Introduction to the Canon EOS R100 Compact Camera

The Canon EOS R100 is a versatile camera that strikes a delicate balance between resolution, file size, speed, and low-light performance. It is ideal for a wide range of photography applications, including everyday snapshots, travel photography, and landscape photography.
The R100 features a 24.2MP APS-C CMOS sensor that produces images with outstanding clarity and dynamic range. The sensor is also paired with a DIGIC X image processor, which enables fast performance and high-quality image processing.
The R100 is capable of shooting continuously at up to 6.5 frames per second, making it a great choice for capturing fast-moving subjects. It also supports cropped UHD 4K and uncropped Full HD video recording, making it a versatile option for videographers.
In low-light conditions, the R100 can be used at a native ISO sensitivity of up to 12800. This allows you to take sharp, clear photos even in dimly lit environments.
Overall, the Canon EOS R100 is a great choice for photographers who are looking for a balanced camera that offers excellent performance in a variety of situations.
Camera Features:
- 24.1 Megapixel APS-C CMOS Sensor
- DIGIC 8 Processor
- Canon RF, RF-S Lens Mount
- Dual Pixel CMOS AF System
- Advanced A+ Assist
- Close-Up Demo, Vertical, Aspect Marker Modes
- Flexible Connectivity - Wired, Wireless, UVC/UAC, Bluetooth, WiFi
- Max. Approx. 6.5 FPS with Electronic shutter
- ISO range - 100-12800
- 1/250 sec flash sync
- 3" Touchscreen LCD
Related Underwater Gear Categories:
- Canon EOS R100 Underwater Housings
- Ikelite Housings
- Underwater Photography Equipment
- Best Underwater Strobes
Check out our full Canon EOS R100 Review!
Below are some sample underwater images taken with the Canon R100 camera



Specifications
- Build
- Material: ABS-PC (polycarbonate) blend housing with clear back.
- Dimensions (L×W×H): 7.5 × 5.9 × 6 in (191 × 150 × 152 mm).
- Weight (land): 3 lb (approx. 1.36 kg).
- Sealing & Depth
- Depth Rating: 200 ft / 60 m (each housing water-pressure tested at the factory).
- Vacuum/Leak Alarm: Integrated vacuum leak detection system with 1/2" valve and hand pump with gauge included.
- Rear Seal: Open-groove rear o-ring (size #0110) plus spare; front o-ring #0132.36 plus spare.
- Ports & Optics
- Port System: DLM (Dry Lock Micro) port mount.
- Included Port: DLM Dome Port with Zoom #5516.15 for RF-S 18–45mm and RF-S 10–18mm lenses.
- Included Gear: Zoom Gear #5515.14 for RF-S 18–45mm and RF-S 10–18mm.
- Port/Lens Notes: AF-only; specific anti-reflection rings and, for some lenses, +4 diopters required as listed in the official DLM/D RF port chart.
- Supported Wet Optics: Compatible with Ikelite DLM dome and flat ports; wet wide-angle or macro lens compatibility depends on the chosen port and lens—please verify this specification with Bluewater Photo before purchase.
- Controls & Ergonomics
- Controls: Access provided for every important camera function, including shutter release, exposure, and menu navigation.
- View & Layout: 100% clear back to check seal and monitor camera status.
- Handling: Dual-handle tray included for stable shooting and easy attachment of strobes or video lights.
- Lighting / Sync
- Strobe Sync: Dual fiber-optic ports driven by an integrated TTL transmitter; no electrical bulkhead.
- TTL Options: Automatic TTL with compatible Ikelite fiber-optic strobes (Ecko Fiber and RC-series; legacy DS via RC2 Fiber Optic Receiver); non-Ikelite fiber-optic strobes operate in manual only.
- On-camera Flash: Uses the camera’s flash to drive the fiber-optic TTL system inside the housing.
- Power / Other
- Batteries: No dedicated batteries required for the housing itself (vacuum pump is manual; TTL is driven by the camera’s flash).
- Included Accessories (in box): Housing with TTL fiber-optic transmitter; Dome Port with Zoom #5516.15; Zoom Gear #5515.14; Tray with Dual Handles #9523.64 (installed); Vacuum pump with gauge #47011; installed + spare front and rear o-rings; silicone lubricant.
- Compatibility
- Camera Bodies: Canon EOS R100 only; other camera models cannot be used or adapted in this housing.
- Lenses (with included port/gear): Canon RF-S 18–45mm f/4.5–6.3 IS STM; RF-S 10–18mm f/4.5–6.3 IS STM.
- Additional Lenses: See the Ikelite DLM/D Canon RF port chart for EF/EF-S and other RF-mount lens support.
- Housing with TTL Fiber Optic Transmitter Dome Port with Zoom # 5516.15
- Zoom Gear # 5515.14
- Tray with Dual Handles # 9523.64 (installed)
- Vacuum pump with gauge # 47011
- Rear O-Ring # 0110 (installed + spare)
- Front O-Ring # 0132.36 (installed + spare)
- Silicone lubricant 1cc tube
Ikelite 200DLM/D Underwater Housing for Canon EOS R100 with 18–45mm & 10–18mm Lenses [Fiber Optic Update] — FAQ
- Does this housing fit cameras other than the Canon EOS R100?
No. This 200DLM/D ikelite housing is designed specifically for the Canon EOS R100, and other camera bodies cannot be used or adapted in it due to control and size differences.
- Which lenses work with the included port and zoom gear?
The included DLM Dome Port #5516.15 and Zoom Gear #5515.14 are configured for the Canon RF-S 18–45mm f/4.5–6.3 IS STM and RF-S 10–18mm f/4.5–6.3 IS STM. Anti-reflection rings are specified in the Ikelite DLM/D RF port chart; please verify inclusion of those rings with Bluewater Photo before purchase.
- Can I get automatic TTL flash with this ikelite housing?
Yes. The integrated fiber-optic TTL transmitter provides automatic flash exposure with compatible Ikelite fiber-optic strobes (including Ecko Fiber and RC-series) and legacy DS strobes via the RC2 Fiber Optic Receiver, while non-Ikelite strobes work in manual mode only.
- Is a vacuum leak detection system included or sold separately?
The R100 fiber-optic update housing includes an installed vacuum valve and a hand pump with gauge so you can pull a vacuum and verify the seal before each dive. No additional vacuum kit is required for basic leak testing.
- What is the depth rating of this Ikelite Canon R100 housing?
The housing is depth-rated to 200 ft / 60 m, and each unit is individually water-pressure tested at the factory.
- Does this kit include a tray and dual handles?
Yes. A Tray with Dual Handles #9523.64 comes pre-installed, giving you a stable two-hand grip and mounting points for strobes or video lights straight out of the box.
- How do I choose the right port if I add more lenses later?
Use the Ikelite DLM/D Canon RF port chart to match each lens to its required dome or flat port, extensions, zoom gear, anti-reflection ring, and any diopter, then confirm your selection with Bluewater Photo before ordering.
- Can I use wet wide-angle or macro lenses with this housing?
Some DLM dome and flat ports support specific threaded or bayonet wet optics, but compatibility depends on the exact lens and port combination; please verify this specification with Bluewater Photo before purchase to avoid vignetting or focusing issues.