How to orient the camera vertically?

Pages: 1

15.03.2012 20:36:00
The camera rises to a special bar on the 5 meter height, photographing going on with the remote control on the length of the line and a small TV (monitor). How in these conditions to put the camera vertically to capture top-down?
your ideas. . .
 

15.03.2012 20:43:00
Make crossmember with two little weights, pendulums, the two need to carry in hand and that they did not get the shot. Dull mechanics will work automatically, no sensors and actuators do not need. Or the unit itself hung like a pendulum, if the loss of half a meter in height suit. Still it is possible to align the bar, then there will be only the barbell upright on a level place.

15.03.2012 20:46:00
hang the camera down on the console hinged - outweigh the lens

15.03.2012 20:50:00

must take the device with the electronic level in the viewfinder. Sonya there are many.

15.03.2012 20:58:00
The system balances within the suspension and to not swayed - spring - damper.

15.03.2012 21:00:00
quote:
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Make crossmember with two little weights, pendulums, the two need to carry in hand and that they did not get the shot. Dull mechanics will work automatically, no sensors and actuators do not need.

I do not understand how it works. Or is it due to the subsequent. . .
quote:
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. . . the unit itself hung like a pendulum. . .
quote:
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hang the camera down on the console hinged - lens outweigh

possible, but the likelihood of blur increases. . . Somehow unreliable.

quote:
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. . . You can align on the bar, then there will be only vertical bar on the level of supply.

think about it, until it seems preferable

Experts, tell me, can have a camera with a built-in sensor orientation of the camera top-down vertically



what model?


today holding a Sony Alpha SLT-A77 - there is only the level of the horizon


15.03.2012 21:46:00

camera rises on a special rod to 5-meter height, photographing going on with the remote control on the length of the line and a small TV (monitor). How in these conditions to put the camera vertically to capture top-down?
your ideas. . .

almost decided this idea the Germans led by von Braun in his time. but you do not work this way.
We must look at what this "special. Rod" and some photographic equipment.

15.03.2012 23:34:00

your ideas. . .

better not to remove the rod and use the model aircraft, helicopter type, for example, or a balloon.
adjusted (adjust) still have. Detect a point on which he hangs after shooting it should be in the center of the frame. If not - adjust the rocker.
Well, the most final, first on the ground to fasten the camera down (in place of the tripod mount, for example) laser pointer. Configure it so that the laser spot would be in the center of the frame when you move an object on the specified remote (5 meters) away. After lifting actuators adjust the camera down so that the laser spot was just above the point of land, on which hangs the camera down. When shooting, you can tie off the automatic laser pointer.
Well, the most super-puperovsky option: sensor - Two levels of mercury (mercury-off switch), perpendicular to each other. Signals from affirmative management servos. Servo is better to take a motorized tripod head from the telescope. In case of deviation from the vertical bead tselindricheskoy mercury inside (flask bit barrel rolls to one end and closes one of the pair of contacts disposed on the end level. This enables one of the actuators that turn the camera to automatically restore the vertical state. Just automatic. Levels attaches to the camera down, and the tripod head to the bar / helicopter / gondola. Use of health.

16.03.2012 8:30:00

almost decided this idea the Germans led by von Braun in his time

link can be? Why not fit?

all difficult! Is there no camera vertikalgo level position?

16.03.2012 8:45:00

uopp
almost decided this idea the Germans led by von Braun in his time

link can be? Why not fit?


difficult and expensive
http: // img-fotki. yandex. ru / get / 4702 / viktor3951. e2 / 0_6897d_670a6809_orig (518x594, 157. 2Kb)

you did not say that it will remove that for such "special. Rod", a photographic equipment. . . and what budget


Well, the most super-puperovsky option: sensor - Two levels of mercury (mercury-off switch), perpendicular to each other. Signals from affirmative management servos. Servo is better to take a motorized tripod head from the telescope. In case of deviation from the vertical bead tselindricheskoy mercury inside (flask bit barrel rolls to one end and closes one of the pair of contacts disposed on the end level. This enables one of the actuators that turn the camera to automatically restore the vertical state. Just automatic. Levels attaches to the camera down, and the tripod head to the bar / helicopter / gondola. Use of health.
UAVs easier to buy than to make a knee


16.03.2012 10:27:00
photographed plans archaeological excavation (then drawn from photographs archaeological layers). Barbell can even vystutat wooden pole, it does not matter.
Excavations carried out, usually in unpopulated areas - do not have time, money and effort to build grandiose constructions for this photograph.
Task: Plan to take a picture of the excavation from a height of 4-6 m, prietom minimize distortsiey and perspective distortions.
budget - a small camera pick. Look at the Sony Alpha SLT-A65 (A77) - is a function of correcting distortsiey (who uses, please unsubscribe, if it works correctly), but this model only the horizontal level.

Biplanes not offer, servos - too (electricity - only GASOLINE).

16.03.2012 10:37:00
it requires a camera down small and light, with a pancake type nex

16.03.2012 10:52:00

At the end of six balls tripod head. It hold a heavy barbell. At the end of the last camera is rigidly fixed, the optical axis coincides with the axis of the rod. The camera will hang down vertically down (if enough weight rod misalignment due to the weight of the camera can be neglected, especially if the camera take lёgonky). By adjusting the tension in the head, protects from the wind.

Perhaps something can be easier and more beautiful to come up.

16.03.2012 10:56:00

Experts, tell me, can have a camera with a built-in sensor orientation of the camera top-down vertically
cameras can not, but smartphones with gyroscopes and accelerometers - a dime a dozen, accuracy as I understand it - about one degree.
to look at the sensor readings:
remote control android https: // play. google. com / store / apps / details? id = com. webkey
remote control iPhones: http: // jailbreak-iphone. ru / veency-remote-control-your-iphone /

well, and seeing also possible, through binoculars.

16.03.2012 11:03:00

think the weight of the camera is not critical. And "nex with a pancake" is the level?


What you offer, you can uprastit removing the bar from the ball head and align the angle of inclination of the head, which snaps the camera. Most importantly, at the time of photographing the camera itself "watched" vertically down.
 

16.03.2012 11:33:00

way somebody predlgayu, I think the idea of ​​standing.

need fotik (canon for example) that transmits showers twist cable, USB 5 meters stretch (dlinshe - can be a problem), connect to the notebook and point the way to the center of the picture was just below the lens.

about perspective distortion - it is easy to edit them if they are not too large. lose permission of course, well, take a picture with a little margin.
You'll be on the ground to lay out some lines to scale? that's on them and then straighten distortion.

16.03.2012 12:05:00
A55 at the electronic level and indicates the horizontal and vertical directions (and at A65 and A77 should be the... checked).

16.03.2012 14:21:00

A55 at the electronic level indicates

it exactly? Verify please

16.03.2012 15:24:00
while the K-5 is not only e. on the 2nd level of the axes is, but he can within a few degrees turn matrix to correct the slope but only about the axis of the lens

16.03.2012 15:57:00

in K-5 not only e-mail. on the 2nd level of the axes have
When the camera is looking down the lens, can The adjusted vertically along its levels?

16.03.2012 20:24:00
Well, of course exactly - I'll take it
And in A65 and A77 probably the same level.

16.03.2012 21:22:00

photographed plans archaeological excavation (then drawn from photographs archaeological layers). Barbell can even vystutat wooden pole, it does not matter.
Excavations carried out, usually in unpopulated areas - do not have time, money and effort to build grandiose constructions for this photograph.

any lightweight design their improvised rubbish will be shaken and it is not customized to your requirements. need a gipershtativ advance do.

Task: Plan to take a picture of the excavation from a height of 4-6 m, prietom minimize distortsiey and perspective distortions.

Distortion (from Lat. Distorsio, distortio - bending), the error image in optical systems, in which the broken geometric similarity between the object and its image; one of the aberrations of optical systems.
Distortion arises from the fact that the linear increase in different parts of the image is different. A typical example of the distortion given by the system, which has distortion - is shown in Fig. a square image (2). Left shows Pillow or positive distortion (1), right - barrel, or negative distortion (3).

Distortion does not violate the sharpness of the image.


Distortion is especially harmful in photographic lenses used in geodesy and photogrammetry. For good Lens distortion is close to 0, 5%. In lenses used in aerial photography, the distortion is equal to 0, 01% or less. In some cases (symmetric Lens or telescopes) distortion can be practically absent.

Distortion corrected the selection of lenses and other optical elements of the system during its development. If present in the digital image can be corrected by software.


--- so the first thing you need to choose a lens, much to his camera.

16.03.2012 21:26:00
quote:
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in K-5 not only e-mail. on the 2nd level of the axes have
When the camera is looking down the lens, can The adjusted vertically along its levels?

not, just over the horizon

16.03.2012 21:31:00
Here's what to think. . . and whether these things do not hang on the balloon. . . .
and attach to the ground extensions of the three cables. And how to ensure strict plummet - think for yourself, it is not difficult to do mechanically.

16.03.2012 22:43:00
Can attach a laser pointer beam down previously calibrated being perpendicular to the camera site and adjust the camera from the bottom of the pole? String with a small weight does not suggest - the wind will swing.

17.03.2012 9:51:00

If present in the digital image can be corrected by software.
will also post image processing, but
"... To choose the lens,... " is also important, ie. To. The less distortion at the stage of photography, so immeasurably easier in the future.
So the question:
I looked at the Sony Alpha SLT-A65 (A77) - is a function of correcting distortsiey (who uses, please unsubscribe, if it works correctly ?

need a wide angle lens (20 or greater). Can anyone knows what wide angle lens distortion are " 0, 5%... but better... 0, 01% "



Thank you for your ideas.
While I seem to be the best 2 options:
1 - Built-in camera sensor vertically (but so far have not found such )
2 - Use the bubble level attached to the rod at eye level; before the excavations - "adjustment" of the bubble.

17.03.2012 19:25:00

Some SLR Nikon electronic horizon is built, but whether it is displayed on the remote monitor display - do not know, nikonistov have to ask or reviews to climb. In models D3, D300, D700 exactly is, but the camera is heavy.

In still Fuji X10 there mylnichke Nikon P7100 horizons have
 

18.03.2012 6:55:00

electronic horizon is built

This is not about the horizon, but the " vertical "
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How to orient the camera vertically?

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