47 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 ...
scottbb's user avatar
  • 32.5k
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 ...
osullic's user avatar
  • 12k
39 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 ...
Michael C's user avatar
  • 175k
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 ...
Mike Sowsun's user avatar
  • 12.2k
14 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) ...
wilkgr's user avatar
  • 758
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 ...
mattdm's user avatar
  • 143k
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.
intruder's user avatar
  • 171
12 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 ...
scottbb's user avatar
  • 32.5k
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 ...
flolilo's user avatar
  • 6,467
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 ...
Caleb's user avatar
  • 31.7k
8 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 — ...
mattdm's user avatar
  • 143k
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 ...
dgatwood's user avatar
  • 2,225
8 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 ...
inkista's user avatar
  • 51.9k
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 ...
mattdm's user avatar
  • 143k
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 ...
Michael C's user avatar
  • 175k
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 ...
jarnbjo's user avatar
  • 3,007
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. ...
Michael C's user avatar
  • 175k
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 ...
BobT's user avatar
  • 6,724
6 votes

What's the point in covering the viewfinder?

The purpose of covering the viewfinder when doing long exposures is twofold: To prevent light entering the viewfinder from affecting metering in low light situations, particularly if there is a ...
Michael C's user avatar
  • 175k
6 votes
Accepted

Is there any way to use viewfinder while recording video with Canon DSLR?

Because the mirror must be up to record video, there's no way to use the optical viewfinder while shooting video with a DSLR. Some folks like LCD loupes such as the example you have linked, others do ...
Michael C's user avatar
  • 175k
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 ...
Michael C's user avatar
  • 175k
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 ...
Michael C's user avatar
  • 175k
5 votes
Accepted

How does a manual lens know when to adjust the aperture?

Nikon has a very noticable lever just inside the lens mount on the left side (viewing the body without the lens from the front). Photo source: Nikon D5000 DSLR: Announced and Previewed On the lens ...
Rafael's user avatar
  • 24.5k
5 votes
Accepted

Viewfinder and focal length in film medium format

The Hasselblad 500C/M is a single lens "reflex" camera. That means that the image you see in the viewfinder is a through-the-lens view reflected to the viewscreen by a mirror. When you adjust the ...
Michael C's user avatar
  • 175k
5 votes

Why did I see sunlight reflection in viewfinder but not in final image?

Without having more information on how exactly you took your image, and without the possibility to reproduce this effect, one can only guess. I see three possible causes for a sun reflection that is ...
bogl's user avatar
  • 739
5 votes
Accepted

Is there any mirrorless camera that can mark areas within DoF in the EVF?

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 ...
BobT's user avatar
  • 6,724
5 votes

Is there any mirrorless camera that can mark areas within DoF in the EVF?

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 ...
Michael C's user avatar
  • 175k
5 votes

Why is my Nikon D850 view finder dark and dim with my new 28-300mm lens?

What you see in the viewfinder is what your lens collects. Your 28-300 (a f/3.5-5.6 lens) collects 6 to 16 times less light than your f/1.4 one. This usually not too visible, though. The other ...
xenoid's user avatar
  • 21.1k
4 votes

Mirrorless Problem? How do you verify that the image you have just took is sharp when you are out shooting?

Regardless, what tips could you provide to verify that your photos will look perfect on your screen when you are out shooting? You can't. There are several reasons why. There's no such thing as a ...
Michael C's user avatar
  • 175k

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