46 votes
Accepted

What's the point in covering the viewfinder?

On SLR cameras, the optical path is connected to the viewfinder. Even while a picture is being taken and the mirror is up, blocking the viewfinder path, it's possible the seal/gasket between the ...
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  • 31k
39 votes

What focal length of glasses is best for photography?

Your question is flawed, and you are making connections where there aren't any. Some people are short-sighted, some are long-sighted, and others are neither. This relates to the eye muscles not being ...
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  • 8,934
38 votes

Can it be dangerous to look at the sun through the viewfinder?

(Normally I would not post an answer to a question I've already voted as a duplicate. But the danger of irreversible damage to a user's eyes compels me to write this.) We've all seen or heard this ...
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  • 167k
27 votes
Accepted

Is my DSLR viewfinder dark because there's no battery in the camera?

Your camera, like many modern DSLRs, has a “transmissive” optical viewfinder which requires battery power in order to be fully transparent. Here is what Canon says about Transmissive Viewfinders in ...
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  • 11.4k
20 votes
Accepted

Why there is more shutter lag when using live-preview as compared to viewfinder?

There is more shutter lag because the shutter has to close first before opening again to expose the shot. When you turn on live view, the mirror is raised and the shutter is opened, so the image ...
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18 votes
Accepted

What does the pentaprism/pentamirror do?

It's important to realize that you don't actually look directly through the lens with an SLR! If you did, a periscope style arrangement would do just fine. What you are actually doing is looking at ...
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  • 117k
14 votes

Why do you need a viewfinder in MILC?

Pros of using an EVF as opposed to the rear LCD screen: It is easier to see in direct sunlight. Holding the camera to the eye increases stability and comfort (especially with heavier lenses). EVFs ...
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  • 117k
13 votes

What focal length of glasses is best for photography?

As 40-something human, I totally understand your question. As you get to about this age, your eye looses flexibility, and it becomes impossible to change the focus distance of your eye like young ...
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  • 140k
13 votes

Why isn't my DSLR's viewfinder showing focus correctly after removing it for cleaning?

Solved. I accidentally placed the focusing screen by flipping it on other side which made in focus objects blurry. I corrected it and it's back to normal now.
user avatar
  • 171
11 votes
Accepted

What does the "[r #]" value in Nikon viewfinders and displays mean?

It's the number of shots remaining (hence the "r") that you can take and store on your card. When you half-press the shutter button, the number changes to the number of shots remaining in your memory ...
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  • 31k
11 votes

Can I record video through viewfinder of a Nikon D3500 DSLR?

This isn't possible with DSLRs using optical viewfinders. This image (source) shows the cross-section of a DSLR: Normally light enters the lens, reflects off the mirror (#2) into the pentaprism (#8) ...
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  • 720
10 votes

Canon 70D Viewfinder info battery logo dead pixel?

That's how it's meant to look. Refer the manual from Canon's website, page 23: Refer also p36: the top LCD should be the same.
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  • 986
10 votes
Accepted

What are the benefits of EVFs over the rear LCD?

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 ...
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  • 6,307
8 votes
Accepted

Why does my Canon 600D take pictures in live mode but not in viewfinder mode?

It seems like you have mirror lockup enabled. The first full press of the shutter button will cause the mirror to move up (just as it does before taking a normal photo using the viewfinder) but the ...
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8 votes

What does the "[r #]" value in Nikon viewfinders and displays mean?

Could someone please tell me what it does, or at least what it's called, so I can look it up? Scottbb's answer is correct and you should accept it, but I wanted to follow up with a little more ...
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  • 31.2k
8 votes

What are the advantages and disadvantages of an electronic viewfinder vs. a DSLR's optical finder?

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 ...
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  • 2,135
7 votes
Accepted

What is the meaning of the small blinking camera symbol in my Canon 70D viewfinder?

This is the electronic level indicator. It indicates that you're not holding the camera parallel to the ground but instead have tilted it. The specific configuration indicates that you've got a tilt ...
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  • 140k
7 votes

What focal length of glasses is best for photography?

Please don't go into taking off glasses and using the viewfinder focus. This question is about USING GLASSES WITH THE VIEWFINDER. I am not interested in essays on using viewfinder diopters, that is ...
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  • 167k
7 votes
Accepted

What's the advantage of a DSLR's "previewer" viewfinder, since I have observed that mirrorless cameras appear to have the same thing?

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 — ...
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  • 140k
6 votes
Accepted

How can I replace this clear plastic rectangle from inside of my DSLR piece?

That's a 'focusing screen'. You can easily obtain it either from the manufacturer directly, or from a camera store. For example from Adorama Typically, for one model of camera there will be a few ...
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6 votes
Accepted

Why is the battery required to manually focus through the viewfinder?

Yes, it's normal behavior. The reason you're having problems is that the 5DMkIII has an LCD overlay in the viewfinder. This overlay is used to give you grid lines you can turn on and off and different ...
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  • 48.9k
6 votes
Accepted

Canon 70D Viewfinder info battery logo dead pixel?

I was just wondering is it meant to be there or is it manufacturing error? It's definitely intentional -- it's the same in the viewfinder and on the top LCD on my Canon 6D. However, the icon on the ...
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  • 31.2k
6 votes

Are there viewfinders that project on a screen rather than forming a virtual image and what are they called?

Your understanding is not correct. The image is indeed projected on a focusing screen, but what you see on the focusing screen is already more or less the final image. You do not necessarily need ...
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  • 2,810
6 votes
Accepted

How does the viewfinder overlay work?

I know how the focus points are painted on the mirror.. Not really, because I've never seen focus points or anything else (intentionally) painted on a reflex mirror. It would be out of focus. ...
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  • 167k
6 votes

What's the point in covering the viewfinder?

The only reason I know of to cover the eyepiece is to keep light from throwing off the exposure meter which is built into the prism above the mirror. This is sometimes necessary when shooting from a ...
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  • 6,126
6 votes

How do I pick a good camera as a surprise present?

dSLRs cannot use add-on electronic viewfinders. They don't have the communication contacts in the flash hotshoe to "talk" to one. The Canon EVF model you're looking at is only for Canon's ...
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  • 48.9k
5 votes
Accepted

What's the proper name for the eye viewfinder?

It's simply called the viewfinder. It can be optical (on an SLR) or electronic (on a mirrorless camera, basically it's a second, smaller screen). Don't say viewfinder when talking about the back ...
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5 votes
Accepted

How can I correct a blurry viewfinder beyond the built-in adjustment?

Assuming you have a DSLR (or some higher-end mirrorless camera), you can add an eyepiece accessory to provide additional magnification (or minification, if you need negative adjustment). The ...
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  • 140k
5 votes
Accepted

Sharp photo taken, but blurry in viewfinder (Nikon D5200)?

Has the diopter adjustment dial on the back of the viewfinder been moved? If everything was clear to your eyes before moving it will make everything in the viewfinder blurry to your eyes. The diopter ...
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  • 167k
5 votes
Accepted

What's the difference between "exposure level indicator" and "exposure setting meter" in the Canon EOS 1DX Mark II viewfinder?

The scale on the bottom is not connected to the light meter. It shows you what you have set in terms of exposure compensation and/or auto exposure bracketing. It is only shown in exposure modes that ...
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