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21 votes

What happened? Sold my Canon EOS 5D Mark II and buyer says images are not in focus

I can not imagine damage that would impact focusing without visible damage to the packaging or the camera. These things are pretty sturdy. you would have to damage the mirror or shutter box to really ...
cmason's user avatar
  • 14.7k
6 votes

How to clean the mirror on an SLR without damaging it?

Just don't. The coating on the surface of your camera's mirror is the most fragile piece of your entire camera that is accessible without taking the camera apart, probably followed closely by the ...
Michael C's user avatar
  • 175k
6 votes

How does the smaller mirror in APS-C cameras offer these advantages?

Just about any wide angle (WA) or ultra wide angle (UWA) lens used with an interchangeable lens camera will use a retrofocus design. That does mean larger, heavier, and more complex than a non-...
Michael C's user avatar
  • 175k
6 votes
Accepted

Nikon D90 mirror stuck

It may be the result of a battery going dead without prior warning. This happened to me using a third party battery pack. In order to fix this replace the battery pack with a charged one (preferably ...
Stockfisch's user avatar
5 votes
Accepted

With an old manual lens and modern digital camera, sharp image on the matte focusing screen, blurred one on the sensor

With the adapter it seems your lens is too far from the camera to focus at infinity. The registration distance of the EF mount lens is 44mm. The registration distance of the Praktica B mount is also ...
Michael C's user avatar
  • 175k
5 votes
Accepted

DSLR mirror stuck at top, sound like rolling gears

The proper answer is "Send it to Nikon or an authorized repair facility". It will be expensive to fix, and may exceed the value of the camera (to you), but they will give you an estimate first and you ...
Linwood's user avatar
  • 2,363
5 votes
Accepted

Mirror vs Lens: do either or both invert the image?

The answer is that the pentaprism is actually a roof pentaprism. The image is laterally-inverted (left-right inverted) because the image actually bounces an additional time due to the roof of the ...
scottbb's user avatar
  • 32.6k
5 votes

Nikon D90 mirror stuck

Nikons from that era (D40, D50, D60, etc) have a couple of things that are fairly well known to cause the dreaded 'Shutter Error" and/or locked up mirror. The first is that the main drive wheel for ...
Michael C's user avatar
  • 175k
4 votes

Mirror Picture Set Up

How can I do this without the camera showing in the picture? Angles. Imagine a line running down the center of the mirror Stand to one side of the mirror and face the center line. Have someone else ...
Caleb's user avatar
  • 31.7k
4 votes

Why do DSLRs have to bounce their mirror when taking series photos?

This doesn't seem useful: the operator doesn't look into the optical viewfinder during the process anyway You are mistaken... There are plenty of cases where you shoot bursts on mobile objects (...
xenoid's user avatar
  • 21.1k
3 votes
Accepted

Mirror occasionally sticks up

So turns out my guesses were completely wrong. I did end up opening the camera and putting some drops of oil in recommended places, which didn't end up solving the issue. However, during this process ...
iHnR's user avatar
  • 221
3 votes

Bendy distortion of straight lines in infinite mirror

I bet the mirrors are made of cheap material and are not flat. Thus, the lines are distorted, and more so the more a particular image is reflected. The mix of straight and curved lines makes some ...
mattdm's user avatar
  • 143k
3 votes

What happened? Sold my Canon EOS 5D Mark II and buyer says images are not in focus

The most possible reason is that the buyer tries to trick you (and he has all means for that). Maybe he wants to return the camera because of better option. Maybe he wants a refund. Maybe he wants to ...
Euri Pinhollow's user avatar
2 votes

Mirror Picture Set Up

One of possible setups is illustrated with this image: To take this photo one needs to place camera off-side. Depending on how important the scene is you may cut almost everything and also place ...
Euri Pinhollow's user avatar
2 votes

What is the best approch to photographing a mirror or other highly reflective surface?

A tilt shift lens is nice but, well, photographing a mirror warrants also documenting how well it actually reflects things. You could consider either photographing it as part of a scene (namely ...
user78438's user avatar
2 votes

How do you remove the mirror in one of Sony's SLT cameras?

Just my opinion, but it's not worth the possible damage you could do for half a stop. I don't think you'd break the mirror, but it's apparently at least partially made of plastic and has coatings on ...
inkista's user avatar
  • 52k
2 votes

How does the smaller mirror in APS-C cameras offer these advantages?

The general advantage of allowing a short distance between the back of the lens and the sensor is that you don't need a retrofocus lens design. This is a lens design with additional elements forming ...
John's user avatar
  • 564
2 votes

DSLR mirror stuck at top, sound like rolling gears

If none of the internet advises work and you don’t want to spend a ton of money try this on a D300s: If the mirror keeps getting stuck, set the camera to Quiet mode. The mechanism for quiet mode is ...
Monty's user avatar
  • 21
2 votes
Accepted

Is there a mirror actuation count limit in addition to shutter actuation count limit in DSLRs?

Mirror assemblies only usually need to be repaired when someone who doesn't know what they are doing messes with them. Most of the time the mirror assembly will outlast the shutter assembly. At one ...
Michael C's user avatar
  • 175k
1 vote
Accepted

How to unlock the mirror without the EOS Utility in Canon T3i

It's at Menu → Settings (yellow wrench) tab 3 → Custom Settings → C.Fn-8 Mirror Lockup → 0: Disable. It's covered on pages 250 and 255 of the EOS Rebel T3i/EOS 600D Instruction Manual
Michael C's user avatar
  • 175k
1 vote

Canon AE-1 mirror stuck but can wind film and take photos

Sounds like a mechanical issue, and like the mirror is getting locked. You might need to replace the mirror bumper. I would suggest getting it professionally serviced. Is your film still winding after ...
stfrdr's user avatar
  • 51
1 vote
Accepted

Why do DSLRs have to bounce their mirror when taking series photos?

Not all do. The Canon¹ EOS 1D X and EOS 1D X Mark II, for instance, have limited options that allow for shooting bursts at their maximum frame rate only with the mirror locked up. The EOS 1D X has ...
Michael C's user avatar
  • 175k
1 vote
Accepted

Canon f-1 shutter and mirror jammed when speed is below 60

I assume the picture is not a stock photo but shows your camera with the mirror stuck up and the shutter stuck open. Then you have one of two versions of the “old” F-1. I can't tell from the picture ...
cmuseum's user avatar
  • 121
1 vote

DSLR mirror stuck at top, sound like rolling gears

Take out the battery for overnight. Put the battery back in and half press the shutter button and see if that releases the mirror. This is very common on the 300/300s cameras. Also there is a reset ...
Dave G's user avatar
  • 11
1 vote

What happened? Sold my Canon EOS 5D Mark II and buyer says images are not in focus

ask them to check diopter setting on the viewfinder - most often its very small wheel-button ,right next to it, usually marked with +/- ... they could be unaware of changing the setting and therefore ...
user6399797's user avatar
1 vote

How to clean the mirror on an SLR without damaging it?

I have used a brush made for mirrors and and sensors with no problems.I have used it on mirror and focus screen .First you have to spin brush or blow air through the brush bristles to give them a ...
Mac's user avatar
  • 11
1 vote

How to clean the mirror on an SLR without damaging it?

Personally, if the dust doesn't affect the actual (digital) shot, I won't bother with it. There are many places inside that dust can get it but doesn't affect the photo. Only if you're certain that ...
Manuth Chek's user avatar
1 vote

Unable to use mirror up mode and wireless remote on a D7000

It is possible. As it explains in the D7000 on section Self-Timer and Remote Modes. First of all you will find the Remote Control mode display under the Shooting menu. The shooting menu display ...
Eugenie's user avatar
  • 11
1 vote

Unable to use mirror up mode and wireless remote on a D7000

You have to set the release dial to "remote" (the little picture of the remote) and then you go into the Shooting Menu (the little camera icon) and then the last option should be "Remote control mode" ...
Lloyd's user avatar
  • 11
1 vote

What is the best approch to photographing a mirror or other highly reflective surface?

I shoot mirrors all the time. I use two stands on either side of me "camera" hang black fabric on the stands. Shoot the pic and you will have a black image in the mirror. All you have to do is clean ...
Jerry Lewis's user avatar

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