zoom lens

音标发音

This camera shines when you use the optical-zoom lens while shooting video.
当你在拍摄视频时使用光学变焦镜头，这款相机的优点就体现无遗。
bbs.translators.com.cn
In contrast, a very good variable-zoom lens like Canon's 24-105mm f/4 lens costs over $1, 000.
对比起来，一个非常好的变焦镜头(如佳能的24-105mm f/4镜头)售价高达1000美元以上。
If you are into photography, invest in a high-quality digital SLR with a 100-400mm zoom lens and a small, collapsible tripod.
假如你爱好摄影，去买一个高质量的数码单反相机，一个100—400毫米变焦镜头和小型三脚架。

The COOLPIX S3500 offers an upgraded feature set that includes a new 20.1-megapixel sensor, a 7x optical zoom NIKKOR lens and lens-shift Vibration Reduction (VR) technology to help to ensure vibrant and sharp images.
ENGADGET: Nikon Coolpix S3500 ships this month with 20MP CCD, lens-shift VR for $139
In addition to the camera, the 11- 27.5mm lens is a super-compact zoom lens that offers a helpful 2.5x zoom range in an easily pocketable size.
ENGADGET: Nikon 1 J2 mirrorless camera: minor control tweaks, $549, ships in September
For those looking to capture a beautiful and sharp image up close or at a distance, the new COOLPIX P520 boasts a 42x optical zoom-NIKKOR glass lens with an impressive zoom range from a wide 24mm to a whopping 1000mm (35mm equivalent), for users that require the very best in performance and versatility.
ENGADGET: Nikon updates Coolpix compact lineup with S9500, sub-$200 S5200 and L28

a device attached to a camera that can make the person or object being photographed appear nearer

A zoom lens is a camera lens that allows you to make the details larger or smaller while always keeping the picture clear.

变焦距
Fixed focus object lens, zoom lens, eye lens and illuming lens are developed. Their structures forms are selected.
基于像差理论选择定焦距镜头，照明系统，目镜和变焦距镜头结构形式，并设计一组二元全动型变焦距镜头。
计算机科学技术
可变焦镜头
The hardware includes digital image sensor,USB interface,DSP system,zoom lens and it’s driving system .
硬件部分主要包括图像传感器、USB接口、DSP系统、可变焦镜头及其驱动系统。
变焦透镜