Built for Big Adventures, Ready for Big Glass
The Shimoda Mirrorless XL40 RST Action Core Unit is the ultimate companion for photographers and filmmakers pushing the limits of remote location shooting. Designed to maximize storage within the Shimoda Action X40 backpack, this Core Unit comfortably houses long supertelephoto lenses—even when attached to your camera body. Whether you're packing a Sony 200-600mm, Nikon 180-600mm, Canon 200-800mm, or even a 600mm f/4 unattached, the XL40 RST ensures your kit is protected, organized, and immediately accessible.
Three-Way Access for Unmatched Versatility
With its RST design—Rear, Side, and Top access—this Core Unit makes getting to your gear seamless and intuitive, no matter the scenario. Whether you're reaching through the roll-top zipper to grab a mounted lens or pulling your camera from the side access while the pack stays on your shoulders, this insert keeps pace with fast-moving shoots. Full rear panel access rounds out the system, giving you complete control of your loadout.
Tailored Depth for Gripped Mirrorless & DSLR Cameras
Engineered with pro-level dimensions, the XL40 RST easily accommodates gripped mirrorless and DSLR bodies up to 6.1 inches (15.5 cm) tall. This deeper design allows popular lenses like 24-70mm f/2.8 and 16-35mm f/2.8 to stand upright—improving pack efficiency and reducing setup time when switching between focal lengths.
Protection You Can Trust
Surrounding your gear is an EVA foam shell that delivers rugged impact resistance while maintaining a slim profile. Unlike the bulkier and less resilient PE foam used in standard bags, EVA gives you high-density protection without compromising on interior space. Inside, customizable dividers let you configure your layout to match your workflow.
Pack Smarter with a Multi-Use Skin
The included water-resistant Skin serves double duty—use it to store and seal your Core Unit when not in use, or repurpose it as a packing cube for clothing and essentials when traveling light. It's all about flexibility, and Shimoda delivers it in every detail.
Modular by Design
The RST40 Core Unit was purpose-built to fill the Action X40’s main compartment to the brim—maximizing usable space. Yet thanks to Shimoda’s modular system, you can easily swap it out for a smaller insert when needed. Whether you’re scaling mountains or heading to a local shoot, the Core Unit system gives you options tailored to the demands of the day.