x value is the zoom range factor. For example, theCanon EF-S 17-85mm IS USM Lenshas a 5x zoom range. Divide 85mm by 17mm to get the zoom range of 5x. The Canon EF 28-300mm IS Lens has a zoom range of 10.7x. To get the binocular-like viewfinder magnification value of a lens,...
I simply photograph a ruler, making a note of the number of mm I get with this and that combo of lens and thingjamings attached. I've been doing the 23,5 / mm since I shoot APS-C. Those numbers I then get I've used as my magnification ratio. While they are meaningfull to me...
colored, depending onthezoom magnification,dueto the characteristics of the lens, but this is not a malfunction. en.leica-camera.com en.leica-camera.com 由於變焦倍率的關係,被攝物體可能會略微變形或輪廓會塗有顏色,這是由鏡頭的特性引起的,並 非故障。
Motorized control by handle, 180-300mm zoom lens binocular 0-200 degree Usage Dental oral maxillofacialsurgery zoom Feature High resolution Imaging system Build-in Full HD camera SONY 1/1.8 ,Control by Handle Safety class class I Packaging and delivery ...
Zoom ratio 1:7.2 Field of view range 8mm-56mm eyepiece 0.4X objective lense 0.7-5X continuously adjustable, magnification lockable Auxiliary attachments 0.5X Optical power 0.14X-1X Working distance 170mm Tube length 188mm Packaging and delivery ...
0-180°tilt angle adjustable binocular tube,f=170mm interpupillary distance adjustment range:55mm-75mm Objective Lens Large zoom objective lens,working distance:200-300mm Illumination system LED bulb,adjustable brightness, center illumination is more than 30000-50000lux,display index>90% Han...
Field of View 178° Focal Length 2.2mm Relative Aperture 2.816 Adapter Type Cmounts Flange Back Focal Length 17.53mm Aperture Adjustment Manual/Locking(Wvlock) Resolution Megapixels Close-up Distance 0.005m Dimensions 29.0mm*64.0mm Zoom Supports/Multiple Magnifications Transport P...
80 is the objective lens size The numbers right of the "X" are representative of the objective lens size This size is measured in millimeters (mm) Additionally, magnification ranges can be fixed, meaning that they don't enlarge or shrink the image (zooming power). If a spotting scope eyepi...
【LED Illumination Light】: 8 LED lights around the bottom of the lens & 2 auxiliary LED lights at the base of the tripod, adjustable brightness, make the imaging sharper and clearer.【12 Language Systems】: English, Spanish, Russian, Korean, Japanese, Thai, Portuguese, German, French, Viet...
300mm Maximum Aperture: f/ 2.8 Minimum Aperture: f/22 Lens Mount: Nikon F Format Compatibility: Full-Frame Angle of View: 8°10' Minimum Focus Distance: 7.22 ' / 2.2 m Maximum Magnification: 0.16 x Optical Design: 11 Elements in 8 Groups ...