为了理解景深(depth offield)这个概念,请想象一下你和家人度假时所拍摄的相片。例如,你和家人一起在夏威夷的瓦胡岛海滩上度假,你想给他们照一张驻立在海岸线上的照片。因为你的家人是画面的主要对象,所以你需要把他们的图像放大。较短的焦距提供了一个更柔和的背景,并把拍摄者的眼睛引到照片的前景。现在,如果你...
in Barrington, N.J., is introducing the TECHSPEC UCi series fixed-focal-length lenses for OEM electro-optics applications requiring small, robust, and lightweight imaging tools. Designed for space-limited applications, these lenses are ultra-compact instrumentation (UCi) versions of Edmund Optics's...
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TECHSPEC CA Series Fixed Focal Length Lenses from Edmund Optics Inc. are ideal for new high-resolution large format sensors. Designed for the 27.
TECHSPEC CA Series Fixed Focal Length Lenses cover APS-C format sensors with a TFL Mount and compact size for machine vision. ✓ Shop now with Edmund Optics!
Fixed Focal Length:Enjoy consistent image quality with fixed focal length lenses, ideal for precise measurements. Warning/Disclaimer ⚠️Camera products can only be used for the purposes permissible under the applicable law and regulations. Misuse of the product for any illegal activities is strictl...
Focal length:4mm;FNO:F2.O-C;Perspective:82.9°*66.5°;Nearest working distance:100mm;TV distortion:<0.5%;Suitable chip:1/1.8 ;Filter aperture:None;MOQ:1;customized support:OEM;customized support:ODM;Use:Optical;Structure:Plano-convex;Shape:cylindrical;pl
Focal Length (mm) 24mm~50mm Angle of View(D) (deg) 80° Min. WD (mm) 300 Mount F/M42 Mount Filter Size M52 x 0.75 Min.Distortion (%) <-1% Wavelength Range 400~950nm Packaging and delivery Selling Units: Single item Single package size: ...
Buy ZLKC HD 10MP C Mount 35mm Lens Machine Vision Fixed Focal Length Lenses Industrial Camera Manual Iris 2/3 '' CCTV Low Distortion at Aliexpress for . Find more , and products. Enjoy ✓Free Shipping Worldwide! ✓Limited Time Sale ✓Easy Return.
i.e. about the geometric relationship between the focal length and the size of the diaphragm opening, while actual light transmission values are measured in t–stops (they are not shown on most lenses)—and two lenses do not necessarily transmit the same amount of light at the same f–stop...