TTL Flash Trigger for Canon II

THE CANON EOS-5D MARK IV 5D Mark IV is the embodiment of a hybrid camera system, providing compelling feature sets for still photo and video capture underwater. Never before has there been a camera that excels so well at both disciplines. Still photographers will love the 61 point autofocus system shared with 1DX Mark II for its fast acquisition and reliable tracking of moving subjects. The new 30 megapixel sensor with on chip analog-to-digital conversion offers plenty of resolution with high dynamic range capture ideal for pulling shadow and mid-tone detail out of strongly backlit images. The 5D Mark IV motion capture feature set might provide even more motivation to upgrade! Previous 5D versions were acclaimed for their faithful color representation in a wide range of underwater shooting scenarios. 5D Mark IV still has that unmatched “Canon Color”, and is now Capable of recording 4K at 30 fps with usable autofocus thanks to the Canon Dual Pixel AF system. Canon 5D Mark IV Key Specifications New 30.4MP CMOS full-frame sensor with Dual Pixel AF DCI 4K 30/24p video using Motion JPEG + 4K Frame Grab 61-point AF system with 41 cross-type sensors (center point sensitive to -3 EV) Dual Pixel AF (sensitive to -4EV) for continuous Servo AF in stills (first for a full-frame Canon camera) and video ISO 100-32000 (expandable to 102400) 7 fps continuous shooting Dual Pixel Raw (image microadjustment, bokeh shift, ghosting reduction) 150,000-pixel RGB+IR metering sensor 1.62M-dot 3.2″ full-time touchscreen Wi-Fi w/ NFC + GPS Built-in bulb timer interval timers Improved weather-sealing THE NAUTICAM NA-5DMKIV UNDERWATER HOUSING While physically extremely similar to the 5D Mark III and 5DS cameras that came before it, small dimensional changes in the Mark IV body forced a new housing design. The core control layout, proven by generations of existing housings in the field, is retained here. This design consistency results in immediate familiarity with the control layout for people that have used Nauticam housings before, and a thoroughly refined and field tested design for newcomers to the brand. The new Nauticam NA-5DMIV housing incorporates technology from the Nauticam housings that came before it, but features enhanced ergonomics, more and better control access, and reduced size/weight thanks to cutting edge manufacturing processes. SYSTEM SPECIFICATIONS: Flash Triggering Dual Nikonos Bulkheads Pre-Installed Replacement O-Ring 90134 Vacuum System Pre-installed FLASH FIRING The NA-5DMKIV Housing comes standard with twin Nikonos flash connectors for electrical strobe triggering. An optional LED flash trigger is available for rapid fire optical triggering (manual power), and a new TTL Flash Trigger enables automatic flash exposure with compatible strobes. The Nauticam TTL Flash Trigger is an ideal accessory for the still photographer. This hotshoe mounted optical flash trigger provides automatic TTL Flash when used with Inon S-TTL and Sea & Sea DS-TTL Strobes connected by fiber optic cables. The TTL trigger also offers manual triggering, including rear curtain sync, with any compatible slave strobe. Accurate automatic TTL flash exposure has been a favorite feature of Nauticam photographers using cameras with pop up flashes, and the TTL Trigger unlocks this feature set in the NA-5DMKIV Housing. Powered by a single Canon NB-13L rechargeable battery, the TTL Trigger provides approximately 150 full power flashes. New in NA-5DMKIV, a window allows the flash trigger status LED to be clearly viewed, and the housing features a power button. This LED provides important status info, and the power button allows the trigger to be activated underwater. Optical TTL Strobe Compatibility: Inon S-2000, D-2000, and Z-240 Sea & Sea YS-D1, YS-D2, and YS-01 EASE OF USE No competing system is easier to assemble or break down. The camera drops into the housing with a quick release camera tray. No controls need to be preset, as housing functions for dials and switches align automatically (on/off, af-m, still photo/video). The large 120mm housing port opening allows even the largest popular pro Canon wide angle lens (11-24mm f/4) to be used, and the camera can even be mounted in the housing with this large lens attached. VIEWFINDERS The standard optical glass viewfinder is very good and travel friendly, but many photographers prefer the ease of a magnified viewfinder with adjustable diopter. Nauticam produces a “straight” 180º enlarging viewfinder and a 45º angled enlarging viewfinder to enhance the ease of close quarters work often associated with macro shooting. Both viewfinders have high quality optics, and allow bright viewing of the entire image. A patented external dioptric adjustment allows personal adjustment to a sharp-as-a-tack standard underwater and viewfinder changes can be executed in less than 30 seconds without using tools. Exceptional composition and focus accuracy have never been more accessible. PREMIUM PROFESSIONAL OPTICS Experienced shooters know a camera is only as good as the lens in front of it, and the same is true when choosing optics for an underwater camera system. Four optically coated glass dome ports (250mm, 230mm, 180mm, and 140mm diameters) and a series of acrylic ports support popular lenses from Canon, Sigma, and Tokina. Port configurations are extensively tested at Nauticam to determine the ideal extension ring length for best performance. For macro and super macro shooting, the Nauticam Super Macro Converter is a revolutionary accessory. This is an entirely in-house design, optimized for use in water. The water contact correction offers the highest overall sharpness, free from chromatic aberration and purple fringing, with reproduction ratios exceeding 2:1 when used with a EF 100mm f/2.8L IS USM Macro Lens. INTEGRATED VACUUM CHECK AND LEAK DETECTION SYSTEM The Nauticam vacuum check and leak detection system is shipped with NA-5DMKIV as standard equipment. Combined with an accessory vacuum valve (PN 25625), 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.

THE CANON EOS R3 CAMERA The Canon EOS R3 in all respects appears to be the mirrorless sibling of the 1DX Mark III DSLR, clearly aimed at fulfilling many of the same roles while offering some additional capabilities through the use of the electronic viewfinder and the larger RF lens mount.  The full-frame 24.1MP Stacked CMOS sensor, in addition to having incredible low-light performance, can also capture full-width 6K video in both Raw and compressed formats at up to 60fps.  The R3 is paired to Canon's industry leading Dual Pixel AF system with 100% frame coverage and the now revived Eye AF system. DUAL PIXEL AF II Canon's Dual Pixel autofocus system has long been a favorite of underwater users, especially when it comes to tacking subjects.  With the R3, the system adds an additional 'Animal' recognition mode which might make the system even more reliable at following moving subjects.  Frame coverage is 100% with 1053 zones to ensure accurate focus wherever the subject may be. LOW LIGHT PERFORMANCE The ability to increase a camera's ISO with little penalty is of critical importance to underwater shooters for both stills and video as shooting with higher F-stop values delivers sharper corners and higher shutter speeds mean less motion blur.  The higher video frame rates also benefit by allowing the shooter to maintain a 180º shutter while still maintaining adequate aperture values.  When using color correction filters, which can often remove more than a full stop of light, compensation via ISO is not as much of an issue for overall image quality.  Maintaining dynamic range, even at high ISO levels is also important for those shooting still images using natural light or in poor water conditions. ENHANCED CONTROLS The R3 features an additional control wheel located at the upper right rear of the camera which doubles as the mode control.  This wheel can be assigned a variety of functions such as ISO and is adjusted by a dedicated control wheel on the housing within easy reach of the right handle.   VIDEO CAPABILITIES The Canon R3 can capture 6K video at up to 60fps in either Raw or more compressed formats.  The 6K capture uses the full sensor width which means no loss in field-of-view.  12-bit 6K capture is possible in both uncompressed Canon Raw or compressed Raw light formats.  10-bit H.265 is also possible in both the HDR PQ and Canon Log3 gamma curves to maximize dynamic range for post processing while maintaining smaller file sizes than a Raw format.  It's also possible (when using supported cards) to simultaneously record 10-bit 4:2:2 DCI 4K 60p video.  For those looking for higher frame rates, 10-bit 4:2:2 compressed 4K/120fps can also be captured, downsampled from the full sensor width.  A natively sampled 4K S35 crop is also an option, allowing for more magnification or the use of APS-C lenses.  The R3 also outputs a clean 6K signal over HDMI via an HDMI Micro Type D connector.  Direct custom white balance in live view is also now possible, making a critical function for underwater video even easier. STABILIZATION The R3 features 5-axis In Body Image Stabilization (IBIS) which can offer up to 8 stops of correction allowing for even smoother video and less camera movement related blur. LARGE ELECTRONIC VIEWFINDER The R3's EVF is an OLED 5.76M-dot that features an OVF simulation mode which leverages. the large dynamic range of the OLED screen to reproduce a scene the way it would look through an optical viewfinder.  The lower dynamic range of electronic viewfinders has always made them more difficult to use underwater, especially in high contrast or backlit scenes. This function can easily be switched on and off by assigning it to a custom function button.  When using the Electronic Shutter, which has an X-Sync speed of 1/180sec, the EVF delivers true no-blackout shooting up to 30fps.   Example setup THE NAUTICAM NA-R3 UNDERWATER HOUSING The Nauticam NA-R3 professional aluminum underwater housing for the Canon EOS R3 mirrorless full frame camera is a tru hybrid shooting solution, just as the R3 itself.  Nauticam has continuously supported both the Canon pro-level DSLR lineup as well as the growing full-frame RF-mount mirrorless cameras with innovative underwater housings and the new NA-R3 is the combination of all those technologies.  Blending elements of our 1D series housings with those for the R series, the NA-R3 will be the most capable housing for the R3 available. MISSION CONTROL Nauticam engineers design each housing to insure that controls are placed where they are needed most and within easy reach of a natural hand position.  The NA-R3 features large knurled control dials for the main and sub-command dials as well as an additional shoulder dial for the customizable control wheel of the R3.  A fourth control wheel, near the front of the left handle can articulate the ring of the optional EF-to-RF lens adapter when using EF lenses.  There is a dual thumb lever on the right side for Record and AF-ON as well as single levers for M-Fn and Fn2.  A lever on the left side actuates the Pv control which can change between exposure preview and OVF simulation modes on the EVF.  An additional dual thumb lever on the left side is for Playback and Magnification. HDMI 2.0 AND MOUNTING POINTS The R3 can output clean 6K 60p over HDMI and the NA-R3 features a large bore M24 bulkhead to support an HDMI 2.0 connection to an external monitor or recorder.  Mounting the monitor or recorder or other accessories is even easier with 3x 1/4"-20 mounting holes as well as an additional M10 mounting point atop the housing.  Check the resources sidebar for supported monitor/recorder housings and recommended accessories. FLASH TRIGGERING Flash triggering can be accomplished via the two included M14 electronic bulkheads (One is pre-installed in the M24 bulkhead via a removable M26-M14 adapter).  If using fiber-optic triggering, the built-in fiber optic bulkheads can be used with either the optional manual LED or TTL-flash triggers to provide the desired type of strobe power control. PREMIUM PROFESSIONAL OPTICS The NA-R3 is built around the N120 Canon RF-mount Port System which supports a wide array of Canon RF mount lenses with a selection of optical glass and acrylic ports.  With lens-removal controls for both EF and RF mount lenses, the NA-R3 can support both lens mount types without modification to the housing.  The EF-RF lens adapter is accommodated inside the housing which allows for the use of the N120 Canon EF-mount Port System without any additional extension rings.  When switching between an EF and RF lens, the camera must be removed to install or remove the adapter.  The Nauticam lineup of Premium Professional Optics can deliver unparalleled optical quality and expanded creative options. When used with the Canon RF 14-35 F/4 IL USM lens, the WACP-2 creates a stunning 140º field-of-view while maintaining an incredibly natural looking image and excellent corner sharpness.  The SMC-1 delivers 2.3x macro magnification to the RF 100mm macro lens while the SMC-2 delivers 3.3x. VACUUM CHECK AND LEAK DETECTION SYSTEM The housing comes with electronics pre-installed for Nauticam's Vacuum Check and Leak Detection system, requiring only the optional M16 Vacuum Valve (25625). 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.

THE CANON EOS R5 CAMERA 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.   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 Weather sealing   THE NAUTICAM NA-R5 UNDERWATER HOUSING FOR THE CANON EOS R CAMERA 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. Mission Control 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. 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. 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 (NA19561). Flash Triggering Flash triggering is achieved via one of two optional Flash Triggers, a manual LED trigger (NA26301) or a TTL Flash Trigger (NA26321) 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. Integrated vacuum check and leak detection system 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.

The Canon EOS R5 is attractive to underwater image makers for a variety of reasons. It is a 45MP full frame mirrorless camera that shoots full width 8K video, utilizes Canon's new RF lens mount, and also has next generation Dual Pixel autofocus. The Canon EOS R6 Camera The Canon EOS R6 is one of 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 R6 uses an 20MP CMOS sensor which is closely related to the one used in the Canon 1D X Mark III flagship camera.  It offers in-body image stabilization rated at up to 8 stops of correction.  The camera's Dual Pixel autofocus system uses 1053 autofocus points across the entire frame.   It is also capable of recording 4K video at up to 60p and 1080 at up to 120p.   The EOS R6 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 20MP full-frame Dual Pixel CMOS sensor UHD 4K shooting up to 60p, 1080 at up to 120p, 10-bit 4:2:2 internal recording in C-Log or HDR PQ 100% coverage Dual Pixel II AF system 12 fps / 20 fps burst (mechanical / electronic shutter) 3.68M-dot EVF 1.62M-dot fully-articulated rear touchscreen 10-bit HDR photos in HEIF format Dual UHS-II SD slots The Nauticam Underwater Housing for the Canon EOS R6 Camera The NA-R6 underwater housing follows suit with Nauticam's drive for innovation. Both the Canon EOS R5 and EOS R6 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-R6 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 R6 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. Mission Control 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-R6 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. 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. 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 (NA19561). Flash Triggering Flash triggering is achieved via one of two optional Flash Triggers, a manual LED trigger (NA26301) or a TTL Flash Trigger (NA26321) 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. Integrated Vacuum Check and Leak Detection System The Nauticam vacuum check and leak detection electronics are shipped with the NA-R6 as standard equipment. Combined with an accessory vacuum valve (NA25625) 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.