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北京东方恒视科技有限公司

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北京东方恒视科技有限公司是一家多年从事广电摄录设备、专业的多媒体视频后期及周边配件的公司。公司自成立以来，一直奉行“以人为本、以技术为中心、以用户需求为导向、以服务为根本”的方针，积极的为广大用户提供了更多技术创新和更高实用价值的各类方案。目前是我国北方地区最大的广播器材销售商之一，2005年获得松......

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佳能镜头HJ18ex28B

产品编号：2389835 更新时间：2020-08-14

价格：

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北京东方恒视科技有限公司

主营业务：非编工作站，录像机，摄像机，硬盘播出系统，字幕机，磁盘阵列，...
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产品详情

产品详细描述：

Continuing global expansion in the volume and variety of HD producti*** places unceasing demands for extended flexibility and creativity in image creation. The need for dramatically increased telephoto capabilities in HD lenses to meet the creative needs of natural history production, HD newsgathering, stadium coverage, surveillance, houses of worship while also facilitating greater portability and mobility on location led to the design of the HJ18ex28B lens.
This innovative ultra-telephoto lens provides a 500mm focal range (1000mm using the built-in 2x range extender) in a compact package that weighs only 2.48 kg(IRSE A type). Despite its modest size, the overall performance of the HJ18ex28B is remarkably high – providing a maximum aperture capability of F2.5, very good picture sharpness, and tight control over chromatic aberrati***.
Even the digital drive-unit is newly developed to provide streamlined ergonomics and ease of operation that further empowers camera operator shooting flexibility. (New drive is loaded with the lens that has ‘A' at the end of its model name such as ‘IRSE A', ‘IASE A'.)

Main Features

	Portable Ultra-Tele
	Achieve a 500mm telephoto image capture with a handheld HD lens and camera. The 2x extender will take this to 1000mm opening up dramatic possibilities in wildlife shooting, special news events, sports and many other applicati***.
	A Compact and Lightweight Optical Powerhouse
	The goal of producing a lightweight handheld ultra-telephoto HD zoom lens has been realized in the HJ18ex28B. Measuring only 268.3mm long and weighing 2.48 kg(IRSE A type), this lens opens up entire new creative imaging capabilities for mobile location shooting.
	High optical performance
	The adoption of new optical materials and contemporary optical design technologies h*e facilitated the production of a groundbreaking portable lens that significantly adds to the creative arsenal ailable to the HD production communities. The novel 3-group inner focus system design in particular was central to achieving the extra telephoto range while controlling multiple optical aberrati. High sharpness and contrast is maintained over this impressive focal range, while achieving a lightweight compact physical dimensi*.
	New Ergonomic Drive Unit
	Besides the exceptional optical performance, another remarkable character of this new lens is it’s newly designed drive unit. With the goal of pursuing ease of operation, Canon has reached a new design based on human ergonomics, refined by a long term research and testing. Of course, all the advantages from the current e-HDxs Digital Drive Unit such as "Information Display for user customize setting", "Rotary Encoder for virtual studio integration and precise control" and "Enhanced Digital Functi**" are inherited to the new drive unit. See more information from our FAQ*

Lens		HJ18ex28B IRSE A / IASE A
Zoom Ratio		18x
Built-in Extender		2.0x
Range of Focal Length (with Extender)		28~500mm 56~1000mm
Maximum Relative Aperture (with Extender)		1:2.8 at 28~286mm 1:4.9 at 500mm 1:5.6 at 56~572mm (2.0x) 1:9.8 at 1000mm
Angular Field of View (with Extender)	4:3 Aspect Ratio (8.8 x 6.6mm)	18.0° x 13.5° at 28mm 1.0° x 0.8° at 500mm 9.0° x 6.8° at 56mm (2.0x) 0.5° x 0.4° at 1000mm
	16: 9 Aspect Ratio (9.6 x 5.4mm)	19.5° x 11.0° at 28mm 1.1° x 0.6° at 500mm 9.9° x 5.6° at 56mm (2.0x) 0.6° x 0.3° at 1000mm
Minimum Object Distance (M.O.D)		2.2m (10mm with Macro)
Object Dimensi*** at M.O.D. (with Extender)	4:3 Aspect Ratio (8.8 x 6.6mm)	65.4 x 49.1cm at 28mm 3.8 x 2.9cm at 500mm 32.7 x 24.6cm at 56mm (2.0x) 1.9 x 1.5cm at 1000mm
	16:9 Aspect Ratio (9.6 x 5.4mm)	71.1 x 40.0cm at 28mm 4.1 x 2.3cm at 500mm 35.6 x 20.0cm at 56mm (2.0x) 2.1 x 1.2cm at 1000mm
Macro		Yes
Size (W x H x L)		176.2x123.6x268.3mm
Weight (Approx.)	IRSE A	2.48kg (5.47lbs)
	IASE A	2.56kg (5.65lbs)

Operational Accessories

Full servo : SS-41-IASD / SS-41-D
Semi servo: MS-210D