FOCUS ADJUSTMENT OF OBJECT LENSKAARU RANGU
A focusing system and method for a photographic camera providing an automatic adjustment in the focus setting of the camera lens with aperture size to exploit the increased depth of focus available with a reduction in aperture size. In the illustrated embodiment, the aperture size is determined in...
根据第一部分HOW TO USE YOUR BINOCULAR (双筒望远镜)中的A. EYE DISTANCE ADJUSTMENT结尾处的Note the setting for later use.记下设置以备以后使用。可知,调好双眼距离后可以记下来方便以后使用。故选C.(2)C. 细节理解题。根据第三部分VERY IMPORTANT的提示Never attempt to clean your binocular from inside ...
Keep the lens covers (that come with your binocular) on the lenses when binocular is not in use.B. When wiping the lenses, use the lens cloth that comes with the binocular, or a soft, clean cloth.C. To remove any remaining dit or spots, add one or two drops of alcohol to the ...
A zoom lens system includes at least three lens groups. Zooming is performed by moving at least two lens groups. The first lens group and the second lens group are formed as the focus-adjusting lens groups which are movable in the optical-axis direction for performing the narrower zoom ...
A focus adjustment control apparatus is provided which includes: a focus detection unit that calculates an evaluation value with regard to contrast of an image via an optical system to detect a focus adjustment state of the optical system; an acquisition unit that acquires from a lens barrel at...
美 英 un.自动调整 网络自动调节;调整各项参数;自动蝶 英汉 网络释义 un. 1. 自动调整 释义: 全部,自动调整,自动调节,调整各项参数,自动蝶
PROBLEM TO BE SOLVED: To provide a variable-focus lens device of simple constitution which uses a circular lens made of an elastically deformable wave motion propagating medium and a simple method for adjusting the focal position of a circular lens made of an elastically deformable wave motion ...
As a result reading glasses after old people water crystals (lens) cirrhosis or sense some hardened, adjust lighting, due to the lack of focus can not be accurately on the retina, located in the retina, see near objects and text will appear blurred. In general, about 40-year-old will st...
A first adjustment ring installed on the distance adjustment ring of the photographic lens has teeth corresponding to threading of the first adjustment screw, and a second adjustment ring installed on the focal length adjustment ring of the photographic lens has teeth corresponding to threading of ...