Camera Model
相機模型
HK$36.00
The camera is a box with a lens in one side of it and a photographic film or a CCD on the opposite side. The distance between camera lens and film can be changed so as to focus on objects at various distances. The aperture can also be changed. In dim light you need to open the aperture up to let a lot of light in; but this makes the image less sharp, and you have a smaller depth of field.
相機是一個盒子，一側裝有鏡頭，另一側裝有照相膠片或 CCD。 可以改變相機鏡頭和底片之間的距離，以便對不同距離的物體進行對焦。 光圈也可以改變。 在昏暗的光線下，您需要打開光圈以讓更多的光線進入； 但這會降低影像的清晰度，景深也會變小。
More about the product : https://www.amazon.ae/Principle-Machines-Teaching-Experimentation-Equipment/dp/B0BG5MV6KK
