Garbage of digital camera sensor that may be attached more than expected -IMPRESS WATCH
Shooting conditions that make it easier to capture the shadow of garbage
I don't know if it's garbage unless I shoot it.Basically, if you take a white paper etc., the garbage will be clearly visible.However, there are some tips to make it easy to see.
パソコンの画面に向かって撮っているところ。パソコンに白い画面を表示させ、それを撮影するのが手軽The lens used is basically anything, but it is better not to be too wide angle.It tends to be dark in the surrounding area, and it is easier to copy it.
The lens aperture is minimal.With the larger F -number value, F22 and F16.
In fact, what appears is not the garbage itself on the sensor, but the shadow of garbage.Here, the shadow is strong.Imagine a situation where shadows appear clearly in your everyday life.Isn't it when the sun is stronger than the state where the light is spread like a cloudy sky?As for the light state that hits the sensor, it is closer to the latter to narrow down.
Exposure mode is convenient for aperture priority.Of course, if you can squeeze the minimum, you can.
The sensitivity is as low as possible.Base sensitivity is fine.I think it is ISO100 or ISO200 with many cameras.There is no need to lower it to the extension sensitivity.
The shutter speed is naturally longer, but you don't have to worry.Rather, it's better to be late.If there is a camera shake correction function, turn it off.What I want to copy is the shadow of garbage, so it is more convenient not to know what is in the blur.
Focus is made as manual focus and focus.
Summary
That's how.
最小絞りでかつピンボケな状態で写すのがゴミの影を写す基本だ。レンズは広角レンズでなければ構わないが、標準域の画角がいいIf possible, white paper wants to be taken with uniform brightness.However, it is very difficult to capture evenly.Leaving the camera will make it easier to write, but you will need a large paper unless you use a telephoto lens.
The recommendation is to display a pure white window on your computer and shoot the lens as close as possible.If it is Windows, you can display notepad and Mac for Mac.If the screen is not very bright, it will be more than 1/8 seconds.It will shake enough, and if the focus is set near infinity, it is in a focus, so even if the screen of the personal computer is dirty, it will not be mistaken for the sensor garbage.What we want to avoid wide -angle lenses is to prevent the depth of field deep (the range that can be seen in focus is wide) as much as possible.
In addition, be careful not to hit the lens tip on the PC screen.
