Sony Alpha a7R IV Body Mirrorless Digital Camera bezrcalni digitalni fotoaparat tijelo a7RIV a7RM4B ILCE-7RM4B ILCE7RM4B (ILCE7RM4AB.CEC)
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Sony Alpha a7R IV Body Mirrorless Digital Camera bezrcalni digitalni fotoaparat tijelo a7RIV a7RM4B ILCE-7RM4B ILCE7RM4B (ILCE7RM4AB.CEC)
Sony Alpha a7R IV Body Mirrorless Digital Camera bezrcalni digitalni fotoaparat tijelo a7RIV a7RM4B ILCE-7RM4B ILCE7RM4B (ILCE7RM4AB.CEC) ZNAČAJKE: Moving to an even higher resolution realm, the Sony Alpha a7R IV continues the noteworthy series of highly capable full-frame cameras, characterized by impressive stills and video performance and versatility. This fourth edition of the a7R sees the inclusion of an updated 61MP Exmor R BSI CMOS sensor and enhanced BIONZ X image processor, which afford impressive imaging results with marked smoothness, a 15-stop dynamic range, and, of course, speed. Up to 10 fps shooting is possible along with the ability to record UHD 4K30 video, both with support for Real-time Eye AF and Tracking AF technologies. The revised sensor design uses a Fast Hybrid AF System, with 567 phase-detection autofocus points, for notably fast and accurate focusing performance. Despite being such a high-resolution sensor, it is also distinguished by its flexible native sensitivity range from ISO 100-32000 for working in a variety of lighting conditions. Additionally, benefitting both stills and video operation, the a7R IV retains the 5-axis SteadyShot INSIDE sensor-shift image stabilization, which is effective to minimize the appearance of camera shake by up to 5.5 stops. Balancing the imaging merits, the a7R IV also sees an updated physical design with more robust weather sealing to suit working in especially harsh weather conditions. In terms of usability, the OLED electronic viewfinder has been boosted to an impressive 5.76m-dot resolution for clear viewing and the 3.0" rear tilting touchscreen LCD has a high 1.44m-dot resolution for crisp playback, live view shooting, and menu navigation. Dual SD card slots are both UHS-II-rated for faster performance and the inclusion of a USB Type-C port permits tethering and quick in-camera battery charging. Additionally, built-in Bluetooth and both 2.4 and 5 GHz Wi-Fi bands afford wireless transferring and remote camera control from linked mobile devices. Dedicated Accessories from Sony Complementing the camera body is a trio of accessories to increase battery life and enhance audio recording capabilities when shooting video. The VG-C4EM Vertical Grip is the dedicated battery grip, which accepts up to two more NP-FZ100 batteries for extended shooting times. Its ergonomic design also enhances handling when shooting in the vertical orientation. For improved audio recording, and making use of the a7R IV's updated Multi Interface Shoe and digital audio interface, there is the ECM-B1M Shotgun Microphone, which delivers a digital audio stream directly to the camera for cleaner quality with low noise. For even more advanced audio control, there is also the XLR-K3M XLR Adapter Kit, which is a dual-channel digital XLR audio adapter for connecting external microphones to the camera while still benefitting from the digital audio interface. 61MP Exmor R BSI CMOS Sensor and BIONZ X Image Processor Featuring a back-illuminated design, the full-frame 61MP Exmor R CMOS sensor works with the BIONZ X image processor to offer impressively high-resolution stills and video while minimizing noise, improving speed, and achieving a wide 15-stop dynamic range. This sensor structure works with gapless on-chip lens design and an anti-reflection coating, as well as eliminating the optical low-pass filter, to improve light collection and enhance detail. Also, the copper wiring layer dramatically improves data transmission speed for creating 14-bit, high-resolution 61MP stills with a native sensitivity range from ISO 100-32000, which can be further expanded to ISO 50-102400. Also, it enables internal UHD 4K video recording with a wide 14-stop dynamic range using either the full width of the full-frame sensor or an APS-C-sized area. The BIONZ X processor also works in conjunction with a high-speed front-end LSI to realize faster processing times along with the ability to capture this impressive 15-stop dynamic range with smooth tonal rendering. The sensor and processor combination also avails fast continuous shooting at up to 10 fps at full resolution, for up to 68 consecutive frames, with full-time AF/AE. Fast Hybrid AF System An updated Fast Hybrid AF system now employs a combination of 567 phase-detection points, which cover approximately 99.7% of the height and 74% of the width of the frame, along with 425 contrast-detection areas for reliable and quick autofocus and subject tracking performance. This focusing system also achieves especially quick speed and reliable tracking, as well as enhanced low-light focusing response down to -3 EV. The use of phase-detection points also enables the use of A-mount lenses via the optional LA-EA3 or LA-EA1 lens mount adapters with full continuous AF/AE tracking compatibility. The apt focus system also lends itself to a variety of focusing functions for refined accuracy, including Lock-on AF, which maintains focus on moving subjects...
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