Outex Cover Size Guide: Which Underwater Housing Cover Is Right for Your Camera?
Apr 24, 2023
Choosing the right Outex cover size is the first step to building your underwater housing system. There are currently three cover sizes available, each designed for a different range of camera bodies and use cases. This guide explains the differences, who each size is for, and how the accessory system works across all sizes.
Cover Size Quick Reference
| Cover | Size Code | Best For | Rear Glass |
|---|---|---|---|
| Entry Cover | 100 | Basic, beginner cameras & lenses | No rear glass opening. Some limits |
| Pro Cover Regular | 110 | All/most cameras & lenses (80%+ of the market) | Yes. Full control and precision |
| Pro Cover Large | 130 | Large bodie cameras, battery grips, large, long lenses over 200mm | Yes. Full control and precision |
Important: Larger covers can be used with smaller cameras, but not the other way around. All covers are fully backwards compatible — any Outex front port, rear glass, and accessory works with any cover size.
Entry Cover (100)
The Entry Cover is part of the Entry Kit and is designed for beginners. It does not have a rear glass opening, which limits some functionality compared to the Pro covers. It is suited to compact and mirrorless cameras and works with DSLRs, but is not recommended for users who need full rear-glass access or advanced accessory configurations.
Pro Cover Regular (110)
The Pro Cover Regular is the most common size and fits over 80% of cameras on the market, including most DSLRs, mirrorless systems, and film cameras. It ships as part of the Pro Kit and includes a rear glass opening for full functionality.
Examples of cameras that fit the Pro Cover Regular (110):
- Canon 6D + 24-105mm f/4
- Canon 5D Mk II + 70-200mm f/2.8
- Nikon D5500 + 35mm
- Sony A7R III + 16-35mm f/2.8
Canon 6D + 24-105mm f/4 inside Pro Cover Regular (110).
Canon 5D Mk II + 70-200mm f/2.8 inside Pro Cover Regular (110).
Nikon D5500 + 35mm inside Pro Cover Regular (110).
Sony A7R III + 16-35mm f/2.8 inside Pro Cover Regular (110).
Pro Cover Regular (110) shown with different front port options side by side.
Pro Cover Regular (110) with Dome 120mm and Dome 180mm front ports.
Pro Cover Large (130)
The Pro Cover Large is designed for:
- Large camera bodies — Canon 1Dx, Canon R3, Nikon Z9, Phase One, Hasselblad, Blackmagic, and similar
- Cameras with battery grips or other attachments that extend the body size
- Long or large lenses exceeding 200mm focal length
Like the Pro Cover Regular, it includes a rear glass opening and is compatible with all Outex front ports, rear glass options, and accessories.
RED Digital Cinema camera inside Outex Pro Cover Large (130).
Hasselblad medium-format camera inside Outex Pro Cover Large (130).
Cover Size Specifications
Entry Kit (100), Pro Regular Kit (110), and Pro Large Kit (130) side by side.
The video below shows all three cover sizes side by side for a size and usability comparison:
Accessory Openings: T1, T2, T3 Variants
Both Pro Cover Regular and Pro Cover Large are available in variants with additional openings for accessories such as tripod mounts, cable adaptors, tethering connections, and lighting. The number in the variant name indicates how many additional openings are included:
| Variant | Additional Openings | Use Case |
|---|---|---|
| Pro Cover | 0 | Standard waterproofing, no accessories |
| Pro Cover T1 | 1 | One accessory connection (e.g. tripod or tethering) |
| Pro Cover T2 | 2 | Two accessory connections |
| Pro Cover T3 | 3 | Three accessory connections |
All T-variants are available in both Regular (110) and Large (130) sizes. All covers are backwards compatible — existing Outex front glass ports, rear glass, and accessories work interchangeably across all Pro cover sizes and variants. The Outex system is modular: mix and match covers, ports, and accessories as your needs evolve.
Learn more about rear glass options on the Rear Glass FAQ page.
Ready to Choose Your Cover?
Browse complete kits — which include your choice of cover size and front glass port — in the Camera Kits section. Individual covers and ports are also available separately in Parts. Additional examples from customers worldwide can be found on the Community page, including the Blog, News, and Reviews.