It's been three years since the release of the Sony α7III full-frame mirrorless camera and the follow up α7IV delivers many of the new features we've seen in other models packaged into this true hybrid imaging system. A new high-resolution 33MP BSI sensor powered by the BIONZ XR processor delivers 4k60p internal capture without crop in 4:2:2 10-bit 600Mbps quality or 30p downsampled from the full 7K sensor width. Paired with massively improved autofocus, 15+ stops of dynamic range and new Active 模式 5-axis stabilization makes this a powerful high resolution photo and video platform worthy of the α7 badging Sony α7III全畫幅無反相機發佈已經三年了，現在新推出的α7IV擁有了很多其他型號相機的新功能，這些新功能被集合在這台真正的混合成像系統中。由BIONZ XR處理器驅動的新型高分辨率33MP BSI傳感器可在4:2:2 10位600Mbps的質量下實現4k60p的內部採樣，無需裁剪，或從全7K傳感器寬度下採樣30p。結合升級的自動對焦、15+的動態範圍和全新的5軸機身防抖系統，使其成為一款配得上α7系列的高分辨率照片和視頻相機。
相機主要參數 The Sony α7 line of full-frame mirrorless cameras has long been at the forefront of offering a variety of models with similar form factor that are geared towards different shooting styles. With the α7 RIII and RIV, the focus was on low-light video-centric and ultra high resolution respectively while the α7IV marries the two to create a true hybrid shooting platform. The Exmor R backside-illuminated 33MP full-frame sensor delivers high resolution still photos while leveraging the large sensor size to provide ultra-sharp and color-rich video downsampled from the full 7K sensor width. 索尼α7系列的全畫幅無反相機一直位列尖端，儘管外觀尺寸相似，卻能為不同的拍攝風格提供各種機型。α7RIII和RIV分別側重於以低光視頻為中心和超高分辨率，而α7IV將兩者結合起來創造出真正的混合拍攝系統。Exmor R背照式33MP全畫幅傳感器可提供高分辨率靜態照片，同時利用大尺寸傳感器提供從全7K傳感器寬度下採樣的超清晰和色彩豐富的視頻。 AUTOFOCUS 自動對焦 The α7IV's improved autofocus system borrows heavily from Sony's other α series releases of late using their Fast Hybrid AF system which combines phase-detection and contrast-detection to provide fast and accurate focus. The AF area is expanded to cover almost 94% of the frame with 759 AF-points. Sony's latest Real Time Tracking and Eye AF modes promise to provide both accurate focus tracking for stills and video. A new Focus Map feature allows for easier visualization of depth of field when filming. to help insure the critical parts of your subject are sharp. α7IV升級的自動對焦系統大量借鑒了索尼最近發佈的其他α系列產品，使用快速混合自動對焦系統，結合相位檢測和對比度檢測，以提供快速準確的對焦。自動對焦區域擴大到幾乎覆蓋94%的畫面，具有759個自動對焦點。索尼最新的實時跟蹤和眼部自動對焦模式為靜止圖像和視頻提供準確的對焦跟蹤。新的對焦功能可以在拍攝時輕鬆地提供可視化景深，使得拍攝主題更突出。 4K VIDEO 4K視頻 4K 60p video captured with 10-bit 4:2:2 quality at up yo 600Mbps without crop sets the α7IV squarely with its peers in video capabilities. Adding in the option to capture 30p downsampled from the full 7K sensor width gives the user the option to choose the right mode for their shooting style. Capturing video in the S-Log3 gamma profile gives access to the camera's full 15+ stops of dynamic range for increased latitude in post processing. A7IV在視頻方面支持4K 30p 10-bit 4:2:2錄製，速度高達600Mbps，無裁剪，與其他同類型產品一樣優秀。在全畫幅模式下採用7K超採樣進行30p錄製，讓用戶可以選擇適合自己拍攝風格的模式。在S-Log3伽馬下採集視頻具備15級動態範圍，為後期處理提供了更高的寬容度。 IMPROVED CONTROLS 相機操控升級 In addition to upgrading the autofocus, video and still capture capabilities of the camera, the α7IV also now has the option to maintain discrete settings for video and still modes. The dedicated dial atop the camera makes switching between modes hassle free. The menu system has also been upgraded to make navigation easier and more similar to other recent models. 除了升級相機的自動對焦、視頻和靜態拍攝功能外，A7IV還擁有可選的視頻和靜態拍攝的獨立設置。相機頂部的轉盤可以輕鬆切換模式。菜單系統也類似近期發佈的其他型號進行了升級，讓導航更加方便。 NA-A7IV相機防水殼 The NA-A7IV is designed as an optimized solution for both underwater still and moving image capture. Outfitted with Nauticam's extensive lineup of accessories, the NA-A7IV can be customized to excel in either role. The latest in a long lineup of Sony mirrorless system housings, the NA-A7IV features the same intuitively placed controls, easy setup, and rugged reliability user's have come to expect. NA-A7IV是為拍攝水下靜態和動態圖像而設計的優化解決方案。NA-A7IV 支持使用Nauticam 眾多配件，可以根據拍攝任務和需求進行配置以應對不同場景。作為索尼無反系列防水殼中的最新款，NA-A7IV 防水殼簡潔直觀的操控、易於設置和堅固耐用等特點都能讓用戶的期望得到滿足。 控制中心 Never miss a shot looking for a button or dial. Regardless of where the control may be found on the camera, Nauticam engineers have placed that control on the housing where it is needed most. Essential dials and buttons are within easy reach of the reinforced ergonomic handles. Atop the housing, a new dedicated lever allows quick switching between Still, Movie and S&Q (VFR 影片) modes. A dual thumb lever near the right handle actuates the REC and AF-ON buttons and a single lever near the left handle is for PLAYBACK. 如果因尋找按鈕或撥盤而錯過精彩的鏡頭會讓人懊惱，Nauticam 的工程師遵循人體工程學，致力於將相機控件放置在外殼上最合適的位置， 無論相機的操作按鍵在哪裡，對應的轉盤和按鈕在用戶觸手可及的地方。NA-A7IV殼體頂部，設計了一個新的專用控制桿允許在靜止、電影和 S&Q（VFR 視頻）模式之間快速切換，靠近右手柄的雙拇指操縱桿可啟動 REC 和 AF-ON 按鈕，左手柄附近的單個操縱桿則用於播放。 支持HDMI 2.0/1.4 A large bore M24 bulkhead is located at the front of the housing for use with HDMI 2.0 or HDMI 1.4 (with a step-down adapter to M16) external monitors and recorders. An additional M10 threaded mounting position near the front center of the housing also makes using an external monitor even easier. The A7IV can output 4:2:2 10-bit 4K at up to 60fps to external recorders allowing for recording in edit-friendly codecs such as ProRes. See the resources sidebar for additional details and recommended setups. NA-A7IV前殼設計有M24孔位，支持Nauticam HDMI 2.0/1.4 電纜系統，可與支持的外部監視器/記錄器配對使用。前殼靠中心的位置還單獨設計了一個 M10 螺紋安裝孔位提供另一種安裝方式。A7IV 可以以高達 60fps 的速度將 4:2:2 10 位 4K 輸出到外部監視器，允許在 ProRes 等易於編輯的編解碼器中進行錄製。有關其他詳細信息和配件推薦，請參閱底部。 上圖展示HDMI 2.0連接，下圖為HDMI 1.4連接 專業的革新性光學產品 Built around the N100 Port System for Sony E-Mount, the NA-A7IV can support a wide variety of native lenses with a selection of Optical 光學玻璃 and 壓克力 ports. When used with an E-Mount to EF-mount lens adapter and an N100 to N120 adapter (see Resources sidebar for supported adapters), the NA-A7IV can be used with the Canon N120 EF-Mount port system, expanding the capabilities of the system even further. Going beyond conventional optics the NA-A7IV can leverage the unparalleled optical quality of Nauticam's Water Contact optics such as the WACP-1 which offers up to 130o field-of-view, full zoom through, an almost 0" minimum focus distance with supported lenses. For macro, the SMC-1 and SMC-2 deliver tack-sharp super-macro magnification levels up to 4x with the Sony 90mm macro lens. NA-A7IV 圍繞索尼 E-Mount 的 N100 卡口系統構建，支持多款鏡頭並有可光學玻璃和亞克力材質兩種鏡頭罩供選擇。當與 E - EF卡口轉接器和 N100-N120轉接環配合使用時，NA-A7IV 可使用佳能 N120 EF 卡口系統的配件，系統兼容性更廣。NA-A7IV非常適合使用Nauticam研發的高端光學水下鏡頭以實現真正的性能，例如搭配WACP-1，可提供高達130o 的水下視野、全變焦、近乎 0" 的最小焦距。在微距方面，90mm微距鏡頭搭配SMC-1或SMC-2 可提供高達 4 倍的銳利超微距放大率。 搭配180mm光學玻璃罩 搭配SMC-1、SMC-2 真空檢測系統 The housing comes with electronics pre-installed for Nauticam's Vacuum Check and Leak Detection system, requiring only the optional M14 Vacuum Valve (25624). 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. Nauticam真空檢測電路板是NA A7IV的標準配置，與M14真空閥門（PN.25624）配合使用，該檢測系統能在潛水時提供實時的安全檢測。一個簡單的LED電路板提示，殼體是否處於真空狀態，以及殼體失去真空狀態。當殼體進水時，會看到閃燈閃紅燈並伴有報警聲。Nauticam系統具有溫度補償功能，避免了由於外界溫度變化或由於相機連續使用自身升溫而造成誤報。 STROBE TRIGGERING 引閃選項 Triggering of external strobes is accomplished via the integrated fiber-optic bulkheads when using the optional Mini Flash Trigger for Sony (26302). Electronic triggering is also via an optional Nikonos Bulkhead. Note that when using this with the Vacuum Valve will require the optional M14 Offset Connector with Vacuum Valve II (25026). 閃燈觸發有兩種選擇，使用Sony Mini Flash Trigger (PN.26302) ，通過殼體頂部的光纖連接孔位和光纖線完成信號傳輸。如果使用傳統的電纜，需要選擇帶偏置連接器的真空閥門(PN.25026)，搭配通用熱靴(PN.25056)使用。 殼體特徵
專利鏡筒鎖定系統 從2009年第一台Nauticam單反防水殼開始啟用，這個紅色的鏡筒鎖已成為Nauticam品牌的標誌性特徵。無需扭轉就能夠將鏡筒與殼體牢固鎖定。Nauticam延伸環也使用同樣設計，即使使用一個很長的延伸環也能確保鏡頭罩不會變形。
直觀簡潔的操控體驗
Nauticam 的工程師遵循人體工程學，致力於將相機控件放置在外殼上最合適的位置， 無論相機的操作按鍵在哪裡，對應的轉盤和按鈕在用戶觸手可及的地方。 簡單易操作的殼體開關 業內最易操作的殼體開關，設計有按鍵控制以防止被意外打開，在需要更換電池或存儲卡時可以快速打開。
HDMI 輸出 NA-A7IV採用M24大孔位，支持HDMI 2.0和1.4輸出到外部監視器或記錄儀，如Atomos Ninja V, Shinobi或SmallHD 503。
配件參考: 32211 Nauticam Full Frame Straight Viewfinder 32°/ 1:1 32212 Nauticam Full Frame Straight Viewfinder 40°/ 0.8:1 32213 Nauticam Full Frame Angle Viewinder 32°/ 1:1 32214 Nauticam Full Frame Angle Viewinder 40°/ 0.8:1 32201 Nauticam 180˚ straight viewfinder 32203 Nauticam 45˚ viewfinder 25624 M14 Vacuum Valve II (Pushbutton Release) 26302 Mini Flash Trigger for Sony 26216 Universal Optical Fiber Cable 28130 Hand Strap for 28113 (For NA-1DXII/D500/D5/80D/A9) 25218 Mounting Ball Set for Tripod (for NA-A9/A7RIII/BMPCC/XT3) 37302 Nikonos adaptor for NA-A7II/A9/A7RIII/A7RIV/a2020 25026 M14 Offset Connector with Vacuum Valve II (Pushbutton Release) 25056 M14 Nikonos 5-pin bulkhead with universal hotshoe connection 適用N100-N120轉接環參考 37305 N100 to N120 35.5mm Port Adapter II (for NA-A7IV) 37306 N100 to N120 25mm Port Adapter HDMI 2.0輸出配件參考 25086 M24 adaptor for HDMI 2.0 cable (incl. tightening tool) 25094 M24A3R140-M28A1R170 HDMI 2.0 Cable (for NA-A7SIII to use with Ninja V housing) 適用HDMI 2.0 的監視器/記錄儀防水殼： 17922 Nauticam Atomos Ninja V Housing for Atomos Ninja V 5」 4Kp60 4:2:2 1 0-bit Reorder/Monitor/Player (excl. HDMI 2.0 cable) 17922S Nauticam Atomos Ninja V-S Housing for Atomos Ninja V 5」 4Kp60 4:2:2 10-bit Reorder/Monitor/Player (excl. HDMI 2.0 cable) with Atomos AtomX SDI Module HDMI 1.4 輸出配件參考 25033 Standard HDMI bulkhead with M16 thread 25081 M24-M16 Step Down Adaptor 25095 HDMI (D-A) 1.4 Cable in 170mm 長 (for connection from HDMI bulkhead to camera) *25033 included in 502B-H/Shinobi-H/503-H monitor housing 適用HDMI 1.4 的監視器/記錄儀防水殼: 17920 NA-502B-H Housing for SmallHD 502 Bright Monitor 17923 NA-Shinobi-H Housing for Atomos Shinobi 5.2" 4K HDMI Monitor with HDMI 1.4 input 17925 NA-503-H Housing for SmallHD 503 UltraBright On-Camera Monitor 出廠包裝 NA-A7IV防水殼 #90120殼體備用O-ring*1,硅油及拆卸片 左右手柄及球頭支架 Panasonic CR2032電池（用於殼體真空報警器） 殼體收納旅行袋 內六角扳手一套 規格尺寸 尺寸：340mm(寬)x 170mm(高)x 125mm(深） 陸面重量：2.7kg 水中重量(含相機和電池)：0.3kg 防水深度：100m 殼體卡口規格：N100 適用機型：Sony α7IV | 
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