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17

There are both advantages and disadvantages to EVFs. The very best ones with high-resolution and high-refresh rates are actually quite suitable for most uses when well-implemented. The main disadvantages are: Lag: There is a short lag between action happening in front of the camera and what you see. Dynamic-Range: EVFs are small LCD screens and have ...


10

Pushing the camera towards your head will significantly stabilize the framing; I, for one, need a faster shutter speed when shooting without looking through the VF. Also, it is less strenuous to use the camera close to the body. I also like that the distance between my eye and the EVF does not change (that much) compared to the rear LCD, so I can be fairly ...


8

Electronic viewfinder Pros: Potentially smaller and lighter camera bodies and lenses (particularly wide angle lenses) Can zoom in to verify precise focus and depth of field Can see (almost) exactly what the camera sees, even in low light Can superimpose more complex data over the image (e.g. zebra stripes, focus peaking); see note below. No mirror assembly ...


7

DSLRs have a direct, optical path through the lens. (Well, a reflected direct path.) You are seeing the scene with your eyes. Mirrorless cameras with a viewfinder actually use a small LCD screen — we call this an electronic viewfinder, or "EVF". You are seeing the image read from the sensor processed for viewing, not the scene itself. Both approaches have ...


7

On the screen at the back of the camera, a preview is constantly shown. I assume this preview is made by light hitting the sensor constantly. So this must require the shutter/aperture to be permanently open. Correct. This puts the sensor into what's called "Live view" mode which is effectively the mode it takes video in. Data is constantly being read from ...


5

All of the mentioned advantages and disadvantages of an accessory EVF are true, except that I also tend to leave my accessory viewfinder attached to my Ricoh GR at all times, so there's no real risk of losing it. But as much as I like having mine attached, I only use it for about 5% of my photos. I would not buy an EVF for the NEX-5R. Part of this is simple ...


5

At best it could only be a very rough estimate. Why is this so? Because ultimately depth of field depends on factors that the camera does not know and which may be, and often are, changed after the image is captured. Among them: Display size. The more an image is enlarged from the size of the image projected by the lens onto the camera's sensor, the more ...


5

The Fuji X-T3 and X-Pro2 (among others) have a focus assist feature called Focus Peak Highlight that shows what is in focus by outlining items in both the EVF and rear LCD that are in focus. This display changes with lens aperture (roughly) indicating near and far range of sharp focus. I believe other EVF camera systems have equivalent features.


4

An optical viewfinder can never have any lag, since it's optical it operates at the speed of light. On the other hand with an optical viewfinder you will not see exactly what you will get in you image file. Exposure, white balance, color and image crop (3:2, 1:1, ...) settings are not visible in the optical viewfinder, but can be visible in the electronic ...


4

Yes, yes and yes. An EVF is extremely advantageous over the LCD and I would just keep it on most of the time. No need to take it off, even in the camera bag, assuming it fits. The advantages you list are all correct: Holding the camera steady is easier because you have it closer to your body and there is an additional point of contact. Framing is also ...


3

Page 21 of your Owners Manual says “The DISP/BACK button controls the display of indicators in the viewfinder and LCD monitor” It also says that Dual Display only works in Manual Focus mode.


3

When I asked this in 2012, the answer was "no". However, a firmware update in December 2014 changed it to "there's a setting for that — but only in manual mode". This is also the case in newer X-series cameras like the X-T2 or X-Pro 2. There are two settings: PREVIEW EXP./WB IN MANUAL MODE PREVIEW PIC. EFFECT The first shows the effect of exposure in the ...


2

It doesn't preview the shutter speed, but emulates the total amount of light received for the given aperture, speed and ISO. Shoot anything that moves (a fan for instance) and you'll see that it is not frozen in the preview as it should be if the display were also emulating the actual shutter speed.


2

In practice, that is just what focus peaking (when set to the right sensitivity) does - mark up anything that is recognizable as acceptably sharp. A single lens camera, unless using something like an auxiliary Time-of-flight sensor, has no actual concept of distance of objects in the viewfinder, with the exception of objects that a phase detection autofocus ...


2

Manual focusing needs to be handled differently with an EVF. Since most EVF are much lower in resolution than the sensor, it is hard to judge best focus by sight, requiring the use of focusing aids like peaking or focus magnification. On the other hand, when these aids are used (which might require additional operating steps), manual focus will often be ...


2

No. The Fuji X-Pro1 is not Exposure-Priority, so it does not simulate exposure. This one observation in my review of the X-Pro1, just published a few days ago. Things get worse in Manual mode because the histogram does not change either since it is based on the display. This is really too bad as one of the best things an EVF can do is preview exposure. ...


2

The viewfinder is telling you that you've overexposed the sky. You may be able to turn that feature on and off. I briefly skimmed the manual but was unable to find the feature. You may have better luck.


2

I made a quick-n-dirty test of rear LCD display lag myself. My friend came over with his Casio EX-F1 compact camera, which can record a video at 1200 fps. We shot a video of the Olympus SP-550 rear lcd panel at 300 fps and then slowed the result down to 1 fps. On the slowed video a one second represents 0,00333 second in real life. I had a Metz flash ...


2

If you didn't noticed there is a button on the right side of the viewfinder |▢|. Image source: http://www.trustedreviews.com/olympus-om-d-e-m5_Digital-Camera_reviewsource First of all there are 2 modes (to quick access this setting, long press the screen button on the side of the viewfinder): the viewfinder will turn on automatically. When the auto switch ...


1

When the bright sun is behind you, the subject can`t be moved and the shot has to be taken from a specific location, an EVF is convenient. When taking pictures in tight quarters (such as some crowded events, or in my case salvage yards), an eye against a viewfinder is sometimes a convenient way to readily frame a picture. Sometimes I just get tired of ...


1

Your camera is telling you what part of the scene is the brightest. How bright is bright enough to be included in the display's warning can be adjusted by the user. Page numbers in the following paragraph refer to the EM-10 Instruction Manual. You can use the Multi-function button (p. 23) to select Highlight & Shadow Control (p.50). You can then adjust ...


1

As has been addressed in a comment to your question, it could do with the amount of memory the camera has, and how much processing it needs to do. If all other parameters are equal (settings, subject, exposure), then I have no idea. The EVF has less pixels than the LCD, so it should process quicker, which isn't your case. The only other thing I can suggest, ...


1

I own a Sony A77 SLT camera. I am an 'avid' photographer. As well as well composed and static shots I enjoy pushing the camera to its limits in various ways including situations where correct timing of shutter release is critical. Overall I am happy with the tradeoffs that come from the EVF system. I am long accustomed to taking action shots with motion ...


1

I found something about Sony SLT A77's viewfinder. It still repeats what @Itai said about varying refresh rates in different lightning conditions, but what I found interesting was what they said about lag in good light. It is hardly noticeable. A quote below (bolding done by me): When not in continuous shooting mode, viewfinder responsiveness is a ...


1

I own a GH1. I just did a quick check. All display modes, except the "setting display" (as shown here) are duplicated on both, LCD and EVF.


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