The Canon EOS R5 is the latest in Canon's full-frame mirrorless camera lineup which has gained unprecedented demand. It features the RF lens mount which has the same large 54mm diameter but the ability to have larger rear lens elements that are closer to the sensor gives increased corner and outer edge sharpness.
The R5 uses an all new 45MP CMOS sensor with in-body image stabilization which can reduce shake by up to 8 stops. The camera's Dual Pixel autofocus system uses 1053 autofocus points across the entire frame. It is also capable of recording 8K video at 24p or 30p and 4K at up to 120p.
EOS R5有着4500万像素的全画幅CMOS传感器，内置机身防抖功能最高8级防抖效果。全像素双核CMOS AF II对焦技术。在“面部+追踪”模式下，相机可根据被摄体位置从最多1053个自动对焦框中自动选择，记录8K RAW、Canon Log、HDR PQ以及119.88P/100P的4K高帧频短片等。
The EOS R5 can also use the large EF-mount lens lineup via three optional adapters, a simple EF to R adapter, one which supports the customizable control ring and another that features a drop-in filter mount.
Key Camera Specifications
45MP full-frame Dual Pixel CMOS sensor
8K Video, with option for RAW or 10-bit 4:2:2 C-log or HDR PQ
Up to 4K/120p, or oversampled 4K up to 30p
100% coverage Dual Pixel II AF system
12 fps / 20 fps burst (mechanical / electronic shutter)
5.76M-dot OLED EVF with 120fps max refresh rate
3.2" 2.1M-dot fully articulating touchscreen
10-bit HDR photos in HEIF format
1x CFExpress slot, 1x UHS-II SD slot
The NA-R5 underwater housing follows suit with Nauticam's drive for innovation. Both the Canon EOS R5 and EOS R present shooters with the ability to use both the available legacy EF lenses via an adapter in addition to their native RF optics. To support both the legacy and native lenses, Nauticam has integrated the NA-R5 into the N120 port system. Canon's EF to RF mount adapters can be affixed to the camera before insertion into the housing. When using the EOS R5 inside the housing with the adapter and a supported EF lens, the port and extension ring arrangement will be identical to the same setup on a Nauticam Canon N120 DSLR. As the RF lens lineup emerges, dedicated port and extension ring combinations will be listed on the Port Chart. Two lens release buttons, one for RF and one for EF lenses used with the optional Canon adapter, are located on the front of the housing to make lens removal through the port opening simple.
NA-R5防水壳遵循了Nauticam的创新设计，佳能EOS R5和EOS R都可以通过转接环使用原生RF镜头和传统的EF镜头，为了兼容两款镜头，Nauticam将NA-R5并入了N120端口系统。佳能的EF到RF转接环需要先安装在相机机身上，再放入防水壳内。EOS R5搭配转接环使用EF镜头时，适配的镜头罩及延伸环可以参考N120 Canon EF镜头的配置图表。当适用原生RF镜头时，则参考专用的N120 Canon RF镜头配置图表（镜头配置图表可浏览www.nauticam.cn获取）。防水壳前壳上设计了两个镜头释放按钮，分别对应RF和EF镜头，方便从前壳的开口处操作更换镜头。
Nauticam engineers are obsessed with getting the underwater image maker unfettered access to all the necessary controls, with as many within easy reach of the ergonomic rubberized handles. This Mission Control philosophy extends to the NA-R5 where a dual thumb lever and dual sub-lever are placed by the right handle. The upper thumb lever activates the "AF-On" and the lower the "Q" buttons while the sub-lever corresponds to the "M-Fn" and "Record" buttons. Near the left handle is a thumb lever for "Playback" as well as a dedicated switch to change from using LCD to the EVF.
Nauticam工程师致力于让水下摄影师可以不受限制地操作相机上所有功能，通过人体工程学设计的手柄能轻松触及这些关键控件。这些极致的追求和设计理念也在NA-R5防水壳上得以体现。例如右边的手柄处对应一个双拇指拨杆和两个副拨杆。上方的拨杆用来控制“ AF-On”，下方对应“ Q”按钮，而副拨杆对应操作使用“ M-Fn”和“ Record”按钮。左手柄附近是一个用来操作“Playback”的拇指拨杆，以及一个专用将LCD切换到EVF的开关。
Large knurled and rubberized control dials access the camera's "main" and "sub" command dials. The two-stage trigger allows for smooth focus and firing activation. Additional buttons for "Menu", "Focus Point Selection" and others are also easily reached from the handles.
橡胶材质的控制拨盘可访问相机的“主”和“副”命令拨盘。两段式触发器可实现平稳对焦和触发激活。"Menu", "Focus Point Selection" 等按钮也可以从手柄处轻松到达。An additional control wheel is located on the left side of the housing and will interface with the control ring on the supported EF to EOS R Mount Adapter with Control Ring using the optional gear (PN 19561).防水壳左侧设计了一个控制旋钮，通过选配控制齿轮（PN 19561）可以与所支持的EF转EOS R卡口的转接环进行对接。Flash triggering is achieved via one of two optional Flash Triggers, a manual LED trigger (PN 26301) or a TTL Flash Trigger (PN 26321) that use the built-in fiber optic bulkheads with optional fiber-optic cables to trigger supported strobes. For controlling strobes that do not support fiber optic flash triggering, a variety of legacy hot-shoe flash control bulkheads are available.NA-R5防水壳支持手动引闪器(PN26301)和TTL引闪器(PN26321)，使用光纤连接方式可支持市面上大多数闪灯。当然，壳体上也保留了电插头的设计方便使用不支持光纤引闪的闪光灯。
The Nauticam vacuum check and leak detection electronics are shipped with the NA-R5 as standard equipment. Combined with an accessory vacuum valve this monitoring system provides constant updates on the water tight and safe-to-dive status of the housing. A simple color coded LED lighting system lets the user know that the vacuum is solid, or that the housing is losing vacuum. Leak detection is built into the same circuit, so if there is water intrusion, an audible and visual indication will occur.
The Nauticam system is temperature compensated, eliminating false alarms caused by a change in outside temperature, or from a camera heating up on an action packed dive.