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32

There are several related questions here. Are mirror lenses good at all (opinion) Are mirror lenses good for wldlife shots in daylight. Are cheap mirror lenses value for money. Relevant: I own a Minolta 500mm AF f8 "Reflex" lens- the only model of AF "mirror" lens ever made AFAIK and one of the better quality ones around. I think that as long as you ...


20

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 have an impact. So I suspect user error. These images appear to be in focus, but perhaps not where the photographer expected. I see areas in focus in both. ...


16

Use a telephoto lens, positioning you and camera several feet/meters away. Your reflection will be much smaller. Can also use a mirror, which will effectively do same thing: position mirror on one side, then you and camera on other to reduce your reflection. Again, a telephoto lens and distance are your friends. Based on the comments, I will explain the ...


12

Yes, the A77 has a mechanical shutter and it does move at 12 FPS per second. There are a number of cameras with similar shutter-speeds including some ultra-zooms but indeed this is very fast. What it does not have is a motor to move the mirror. This is more problematic for speed then the shutter itself since a mirror is heavy and has to move out of the way ...


12

The mirror in a DSLR reflects light from the lens into the viewfinder pentaprism, allowing you to look through the viewfinder to frame a shot. At rest, the mirror sits at an angle in front of the shutter and sensor, blocking the light from hitting them. When you click the shutter button, the mirror lifts up, allowing the light to hit the sensor to make the ...


11

Simple, it allows you to see exactly what the camera will "see" when you expose the shot. Nir has given you a part of the argument as well which is accuracy. In the "middle ground" of anything around mabye 20-100mm, building a rangefinder is not too difficult and Leica had adapters for longer and wider lenses if I am not mistaken. It takes some effort to ...


10

I do own a 1100D and don't find the mirror noise so loud. In Live View, the mirror is up, so that would explain the lower noise when you take the picture. My advice would be to go to a shop and compare the noise with the 1100D that is on display. IF it is the same, then your ears may just be too sensitive. If it isn't, then head out to the service center and ...


10

I'm thinking in several options: Put a timer on the camera, and "duck and hide" Use a remote trigger, and just hide. Point the lights away from you and the camera. You most likely are using diffused light. If you are using a softbox you can use a grid so you don't spill the light on you or the camera. If you are using an umbrella you can position 1 or 2 ...


8

I'm not entirely sure if @StanRogers answer covers it entirely so I'll add this. When you use compressed air canisters several things happen besides the blast of air which can (as Stan describes) remove things like the thin film coating. First, the gas, stored under pressure expands quickly, this gas expands because its heating up and has room (less ...


8

If you have a higher budget, or access to a room with one, and the shot wouldn't be spoiled by re-location, you could use a one-way mirror to hide yourself and your camera from view. Just make sure to turn the flash off, or you'll spoil the trick.


7

Pretty sure it's not possible with the wireless remote. You can set custom function D11 to ON. D11 is the Exposure Delay Mode, which will flip the mirror up then wait a second and then trigger the shutter. With this turned on, your wireless remote will work in remote mode and you'll get a 1 second mirror up delay.


7

There are many nooks and crannies in a modern dslr mirror box to hold (and hide) dust. If it's just dust - not fluid - I use a strong blower (like the VisibleDust Hurricane Blower) with the body held lens mount down. As I compress the blower with a quick, strong squeeze, I quickly (but carefully) move the body up, away from the blower in as smooth a motion ...


6

The only disadvantages are that it slows down your shooting (you have to wait a second or two after locking the mirror for the vibrations to subside) and that the viewfinder is black during this time so you can't react to changes in the scene. Having said that, you only benefit from mirror lookup when using telephoto lenses, or when shooting slow shutter ...


6

Based on an update in the comments it looks like you're trying to build some kind of stereoscopic mount or device to capture two images in one exposure. A prism offers better light transmission. Mirrors are significantly lighter. Mirrors offer some ability to modify their geometry. Mirrors are significantly cheaper to produce. Which is right for you ...


6

Mirror moves so that you can track image in real time, framing object better and keeping eye on surroundings. Also, when mirror comes back to normal position, so does AF/AE system. In some DSLRs (maybe SLRs as well) quick shooting with mirror locked-up (and sometime additional restrictions like locked metering) gives higher frame-rate. Example is Canon's ...


6

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 underside of the focusing screen located just above it. The mirror should never be touched on the surface. Unlike most mirrors in other applications that have the ...


6

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-retrofocus design. But that doesn't mean all retrofocus lenses must be equally large and heavy (and expensive). A wide angle lens that uses a retrofocus design is ...


5

I would assume that you are correct in that dust has "worked its way in" to the camera and is now dispersing itself around the innards!. You might consider having it professionally cleaned out. I have a D300 and use it regularly semi-professionally, several times a week, regularly changing lenses - it is usually kept in a bag. I have never needed to clean ...


5

For the price some of them aren't bad. You can get good reach at a cheap price. However, they have many disadvantages The out of focus background will be poor. Horrible donut-shaped bokeh Many of these lenses have poor contrast and color Fixed aperture, so can't control depth of field You will find good images online taken with these, but I think ...


5

The SLT-A55 at least no longer focuses but everything works, even with the mirror removed which you can do without too much difficulty. Exposure is off by about 1/3 EV.


5

Poking a hole into a large sheet works, but damages the sheet. Instead, use two white sheets that are held together by clamps. The space in between two clamps acts like a hole, without actually being a hole in one sheet. Unless the material you're using is unusually thick and opaque, wear light clothing when doing this. A dark object (i.e. a black T-shirt) ...


5

In case of a flat mirror then there's another way using tilt-shift lens Another use of shifting is in taking pictures of a mirror. By moving the camera off to one side of the mirror, and shifting the lens in the opposite direction, an image of the mirror can be captured without the reflection of the camera or photographer. http://en.wikipedia.org/wiki/...


5

Today, most DSLR mirrors are operated by a dedicated motor. Return springs are used to move the mirror back into position. Some DSLR's have two mirror motors. One to raise and one for return. Here is a video that shows how the Canon EOS 7D Mark II operates: https://www.youtube.com/watch?v=kLU5oygrkpw


5

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 pentaprism. Pentaprism diagram from Wikipedia: Single-lens reflex camera, CC-BY-3.0


5

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 44mm. The thickness of your adapter pushes the lens too far away from the camera's imaging sensor. The reason the viewfinder looks better is because the ...


4

Because in most shooting modes you want the camera to perform Auto Focus and/or metering between each frame. If you are shooting action or sports and your subject is moving towards or away from you AF for each frame is essential. In conventionally designed DLSRs, the mirror must be down to auto focus and to meter. There are some higher end cameras that ...


4

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 a Nikon battery). Turning the camera on will likely result in the "Err" message being displayed. Simply press down the shutter and the mirror should move into ...


4

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 the shutter/mirror cocking mechanism is dirty or needs lubrication. This wheel can be accessed on many Nikon cameras by removing the floor plate of the camera. ...


4

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 stand in the corresponding position on the other side of the line, also looking at the center of the mirror. You'll see the other person, and they'll see you but ...


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