Quote: (03-07-2018 03:37 AM)sterling_archer Wrote:
Can someone explain what is the deal with viewfinders, i.e. difference between electrical and optical? Also, for what they say something akin to "you will get what you see" and what image does LCD screen actually show?
Kind of like the difference between watching TV and looking out the window...
An EVF (Electronic View Finder) presents, via a screen, what is essentially a live feed from the sensor. So, what the sensor sees, you see. That's why you get the WYSIWYG effect. Whatever exposure setting you have dialled into the camera will affect the image displayed, and represent the image you'd capture if you pressed the shutter. So, if under-exposed, the display would be dark, and if over-exposed, you'd see a washed-out image. Set the correct exposure, and you'll see a more accurate picture of the scene.
Though, btw, you can usually disable this 'preview' function, for instance if shooting with studio strobes.
An optical viewfinder simply transmits the light directly, same as if you were using, say, binoculars or a periscope. With some of the Fuji cameras, you'll look straight through a little window. A DSLR will bounce the light entering the lens off a mirror and through a prism to show you what you're pointing the camera at. These will usually have overlays to assist with focus and display settings and so on.
Good, detailed explanation of the Fuji system on the X-Pro1 here.