Since I was 12 years of age, I was using SLR cameras. Of course I had several lenses for several purposes! My workflow was to select the lens for the task, put it on the body carrying the film for the task (no auto-ISO or auto-WB at that time) and stick my eye (the right eye in my case) into the viewfinder. This is how I photographed for decades!
And now you come and take the viewfinder from cameras?! What's the point?!
Well, actually, I bought my Canon G15 because it still had a viewfinder. Right, this is not a particularly good VF, but, it still works in the old skool way.
Old skool? What do you mean? (I hear you thinking).
A viewfinder, at least the way I personally use it, will create focus when the eye watching it is focused at infinity. Urgh?! I feel you thinking... why that?!
Here's a trick I use for many years (I have not yet seen any photographer telling this trick!): your dominant eye should use the viewfinder of you camera, while the non-dominant eye observes the scene as such!
Dominant eye, what is that?! The dominant eye is the eye you would use to aim a gun (put is simple terms). The dominant eye observes the "subject" (in photography term). The non-dominant eye serves perfectly for observing the scene, setting the background etc.
=> You got 2 eyes (if you are lucky!), use both!
Right... EVIL (EV at least)...
There are many obvious advantages which an electronic viewfinder (EV) can provide:
- it shows the field the sensor sees,
- it shows the image as amplified by the system,
- it shows data about exposure, aperture, shutter speed, ISO, etc.
- holding the camera close to the face (maybe even hiding it under clothing, e.g. hiding under a hood)
- holding the camera very close to your face will force a "brace position", which stabilizes the shot
- the EV will enable you to see the scene through one eye and the frame trough the other eye, both in focus...
- in low light conditions, the EV will show a scene, which will be invisible to an OV (optical viewfinder).
However, the main advantages of using EVs over BackBodyScreens are:
- you're not sticking out your camera in someone's face
- you're not sticking out a camera at the length of your arms, creating additional visibility
- you're not sticking out your camera at a lever (your arm(s)), creating unwanted shake
- you are actually aware of your gear!