Infoseite // Search TFT with battery operation as a crane-and 35mm-Focus Control



Frage von Anne Nerven:


Hi folks,

I'm looking for a 7 "LCD display, which I can operate by battery. It will serve as a focus control for a 35mm and well-used as a crane, so not too hard. In" bargain-camera "will be offered such a (no battery, but 10 times AA Betterien) for around 180, - Euro plus sämtl. costs. In essence, this is OK but I am still reluctant to buy because ebay 7 "LCDs (12V) like sand s . and the sea offered p.50, - Euros per instant-purchase to purchase are. Resolution as well as in-and outputs are identical. And some models are up to 1cm narrower - so probably synonymous easier. However, with no battery power available.

I as a certified electrical Doofmann, ask me if I was not just the LCD s.einen 12V Battery? can. S.Pros Pros, Cons s.Cons - finished. Or would I in my infinite naiveté only the grill? Do I possibly some electronic component, or even a soldering iron in order to shoot beautiful photos? What role is there actually the number of watt?

Hat maybe someone of the reader is already an acceptable solution to the same problem?
Or, as it controls the Focus at Einatz of SG-Pro and Co? My Cam display is too puny (XH-A1).

I appreciate any helpful reply
Dirk

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Antwort von Axel:

Nevertheless, the mere, shitty display the XH A1 to focus better than the things which thou hast her augeguckt. One reason: The former has a very reliable help focus the> peaking, while the latter have a resolution to the "Frame" is sufficient, but not the sharpness assessment. Next best (Forum Search): A SonyDVD Portable, next best (DIY, forum search): proboscis HDV's blog, next best (search:) Tote Vision (among others), where it slowly is expensive. All this is still nix nix Half and whole rotten compromise, compared with that for which I had pre-register.

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Antwort von thos-berlin:

Pure electric, without consideration of image quality:

A 12V can easily s.einem Battery or s.Auto-operate inboard. the suitable connection you have to tinker with, if necessary (leave). Round connector to car cigarette lighter is finished.

From the number of watts you can then infer how long the part (in theory) s.Deinem Battery runs.

Did you as a model NIMH Battery 12V RACING PACK 4200MAH, this 4200 milligrams = 4.2 ampere hours Amper hours. This means that he is at 12 V, 50.4 watt-hours work can be.

Has your 10 watts, Power consumption (at 12 V), then you can use it in theory, ie 5 hours run (50.4 watt-hour / 10 watt).

Some x4-tech models have a workable resolution.

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Antwort von Anne Nerven:

Quote: Did you as a model NIMH Battery 12V RACING PACK 4200MAH, this 4200 milligrams = 4.2 ampere hours Amper hours. This means that he is at 12 V, 50.4 watt-hours work can be.

@ Thos-berlin,
I can turn all the numbers and contact as I want:
I just do not understand how I made the units 12 (V), 4200, or 4.2 (A / h) and 10 (W) to 50.4 watt-hours come. The only thing I understand is that 50.4 watt-hour is 5 hours at 10W are. Everything else is for me inexplicable. However, it is synonymous the only reminder s.die school (physics): P = UxI. That brings me here, but not synonymous next. Thanks anyway, your account will help me know. And I would be happy and satisfied, because there would be no posting of Axel ...

@ Axel:
Hui, I have not thought about what Resolutionich actually buy. The Cam-display at 2.8 "over 207,000 pixels, which is 7" only on 112000th That is only half Resolutionbei double-size (coarse and fast)! But obviously, one Cam display, despite the peak function, you are not synonymous, otherwise you would not have a 750-EUR-thinking, and soon a buy now.

Hmm ... if I have the mosquitoes around 750 for a HD output will have to wait. Then I need but not synonymous. Purchase the I will probably half of all shots landing in the trash. So I was working with no monitor predicts. So I can not live!

But now look seriously:
It can not be that all 35mm - users buy a HD or hope, that probably some of X Takes sharp enough, to be used next?!

I go just in me ...

Greetings and thanks,
Dirk

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Antwort von Axel:

"Anne nerves" wrote: But now look seriously:
It can not be that all 35mm - users buy a HD or hope, that probably some of X Takes sharp enough, to be used next?!


For a 35mm you will not necessarily have an external, if you think of Tripod Films and shoulder of the recordings without sharpening shift machst. For scenic work can be the position of the KB lens for certain distances to the subject mark, live capture. In this case, the person who supervised the capture, on the same synonymous delayed at least stop the preview, if it is significantly blurred. An immediate inspection of the recorded Takes is on the laptop no problem - in a good resolution. So which one? To someday recordings of the shoulder to make shift with Sharp (with follow focus), but this requires much practice.

For a crane (or Steadicam) satisfies the x4-tech (or similar). Why? Because you do not use it anyway and to Console or auto-focus depends. Otherwise you would need radio sharpness (teuuuuer ...), and I am still waiting on a DIY Bastelanleitung for a converted model aircraft (not for aerial photography, but, of course, a focus motor sensibel remotely). Please tell if it is in sight ....

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Antwort von Markus_Krippner:

I can recommend you this here:

http://www.reichelt.de/?;ACTION=3;LA=444;GROUP=E319;GROUPID=3993;ARTICLE=79374;START=0;SORT=artnr;OFFSET=16;SID=26bT9@iKwQARoAAHmHIDU6a286c2319f28b93869e7053197f669e

(; hopefully funzt the link)

Unlike most ebay these models, namely native 800x600 pixel resolution (, 480,000). They still FBAS 2x in, 1x audio in for free and still NEN VGA in. And all for grad mal 140, - Euro.

Have yourself of this type has more than 10 mobile units in various construction projects - all clients were thrilled. For little money, the really a very good picture.

If you dare (; and one's preference is no guarantee), I still recommend the device to open, and the touch screen panel to remove. Is a bit pfrimelig, but there again tidy profit in sharpness and contrast. But it is synonymous with the panel almost all 7 "-8" of the TFTs 80 to 150 euro class clearly superior.

Gruß ...

markus ... :-)

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Antwort von deti:

@ Markus_Krippner:

The of you referenced is 4:3 - if you so 16:9 content which will bring greater resolution Not much, because at least in the vertical black bars must be deducted.

I would rather this be in the 16:9 format recommend:
http://www.reichelt.de/?;ACTION=3;LA=2;GROUP=E319;GROUPID=3993;ARTICLE=73667;START=0;SORT=artnr;OFFSET=16

Taste also synonymous only ¬ 114.95.

Deti

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Antwort von TiMovie:

I could offer this to you yet, it costs a little more, but the (for me) big advantage that the Picture mirror, rotate ... may, for example for 35mm without Flip is very good!

http://www.markertek.com/Digital- Video Production / Video -/LCD- video -Reference-/Delvcam--Systems/DELV-7XLPRO /

Come inches and of course, taxes will!

Gruss TiMovie

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Antwort von thos-berlin:

Quote: I just do not understand how I made the units 12 (V), 4200, or 4.2 (A / h) and 10 (W) to 50.4 watt-hours come

Short slot: Instead of "ampere hours" is the capacity. So this is not the current per unit time (A / h), but current times time unit.

For the same battery capacity of the battery is running at lower power for longer than for a large power.

The battery delivers its rated voltage at 12 V 4.2 Ah. These are 12 V * 4.2 Ah Vah Work = 50.4 = 50.4 Wh

When the 10 W power, then it is 50.4 Wh / 10 W = 5.04 h.

If, for instead of the performance of the electricity would be indicated, it could be somewhat easier to calculate, because the voltage is the same.

In my example flow for a power of 10 W and a voltage of 12 V, 0.83 A (10 W = 10 VA, 10 VA / 12 V = 0.83 A)

4.2 Ah / A = 0.83 h 5.06

(The difference to other accounts with the result 5.04, it follows from rounding errors, as a rounded value of 0.83 is actually 0.8333333333333333333333333333 it ........)

If at the technical data of the voltage (in volts indicated) * Current (amps given) is not the power in watts shown, it is that such values mostly with "safe distances" (maximum values) are indicated and the laws of physics (here the Ohm's law) in the marketing does not always apply ;-) ....

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Antwort von Axel:

Considering that one is not always perceived as useful. A 35mm makes the whole setup pansig and difficult to maneuver. It must be extremely useful, so that it can tolerate, or even like to use. It must be easy, its own power, of Component (A1), better course, via HDMI (others) the correct aspect ratio and offer a really much better Resolutionals the display. Anything not clearly on the screen dissolves, is scrap-ballast, and will land again on ebay. A light reading (0.5 for example) increases for the Normal display. From my point of view in comparison to these things well invested ¬ 5 ....

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Antwort von Anne Nerven:

@ thos-berlin:
if I would tell you now what I was 4.2 x12, I would be in your eyes do not actually viable! That's it, if you calculate in your head, without this to use.
Therefore, many thanks for your detailed explanation. She gave me, not only in relation to the Battery solution, very helpful :-)

@ Markus_Krippner, and deti TiMovie:
Thanks for your tips!

But due to the stimulus of thought Axel, regarding the need for additional sharpness control during shooting, I just wait, as I am with the zurechtkomme. Because Axel is right: I have not even with Follow Focus work. I will be filming a shower. Although this is an "innovative Wellenss shower" with steam, light scenes, Music and wireless router - but it does not work! It is just rum. Therefore it goes well but the 50 euro-display as a crane in connection with the snazzy live-capture method of all.

Again, many thanks for your comments, tips and links.
I must now math course ...

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Antwort von Anne Nerven:

@ Axel:

You're a fox!

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