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Digitalkamera 25fps

25fps digital camera



Frage von ennui:
Juni 2009

Hello,

Search digital camera, so camera, with 25fps video function. Resolution min. VGA 640x480, recording time as long as possible / unlimited, compressing codec as weak as possible. What's there because at the time someone has an overview? Or is there such a collection on the net? Yes Were seemingly every once such devices, but sometimes it is not even listed in the manufacturer's data.

Via Google search and here I came across so far: Casio Z1080, Z1050, Z1000. The question arises in Netzzwar on again, but usually with answers like "30 fps is still better," "sowas gibts nicht" or "buy you camcorder.



Antwort von ennui:

Aiptek PocketCam 8800th VGA, 25 fps, AA Batteries. Am looking forward to. ASF compression.



Antwort von ennui:

Here is the Conclusion of my search for the 25fps VGA-in-the-pocket-cam.

PocketCam 8800 was expected to rip-off, "up to 25fps" on the manufacturer's site signifies here that is "struggling a dubious 30fps MJPEG codec to provide their data, which unfortunately works not so good". Jerky, hanging 30fps video in both VGA as synonymous in QVGA. Colors would otherwise still ok with enough light, automatic exposure control to be quite slow and dramatic. Processing tepid, with fixed focus "macro" switch.

25fps/Vga is s.Aussterben, there are now little more than 30fps, mpeg4, or even HD. Frame rate is usually hidden somewhere in the specs, if ever indicated. 25fps is probably not in demand, 30fps or more was found (; "faster").

Remaining 25-fps-Digicams have

Exilim Z1000, 1050, 1080
Finepix F50fd, F60fd

A review F60fd:

Camera is small, heavy, and made of metal, with tripod mount, rugged looks up to the automatic lens cover, at the same time graceful. Cuts from the average in tests, "has 12MP, face detection, automatic scene-automatic, and also one of the last camera function of a video VGA @ 25fps, MJPEG codec. Maximum recording time 10 min film. Video function is selectable scroll wheel, does not offer any manual settings, but prior to the recording again be focused, and there is image stabilization. Video quality is very fluid, no stuttering or dropouts synonymous with lots of movement. The automatic exposure control system reacts quickly, but visible in stages. The automatic system exposed quite well. The picture is crisp colors, contrast is a little hard, lightweight jpeg artifacts in the otherwise stunningly crisp frames.

Movies are copied via USB to calculator, and then inserted via Virtualdub in a letterboxed 720x540 DV resolution at the (; smart resize). This may be a slight gamma correction, and the 8khz mono audio is converted to 48khz 16bit stereo. Only pro forma, because the sound is obviously not a feast for the ears. Comparable with a bad radio, so it still understandable, but certainly not a hifi.

So you can now convert the material into a DV codec like the Panasonic of, and then further process the material in the DV-editing program as usual frame accurate. Unlike the material of a good DV camera is of course visible, the picture is softer and fuzzier, the tones differently. It has a unique aesthetic.

Conclusion: competition for Super8.


2 questions in addition:

1. The color space is expected at a digicam indeed be some RGB, will convert the already translated automatically into the correct color space? Looks ok but out on the TV, but little has been that typical digicam look. Virtualdub has since diverses, 4:2:0?

2. It has indeed in mjeg "640P" frames, ie frames. The DV is then (; upscaled) 25p. Should one full frames for more fluid movement now retrospectively somehow interlace ", or is this all? One always reads deinterlace only of "."

Other well-known 25fps models that are worth something, please add.








Antwort von tommyb:

Quote:
Movies are copied via USB to calculator, and then inserted via Virtualdub in a letterboxed 720x540 DV resolution in the


and

Quote:
So you can now convert the material into a DV codec like the Panasonic of, and then further process the material in the DV-editing program as usual frame accurate.


will not work because IT MUST have 720x576 pixels. 720x540 is true scaled, but that is not a source for DV.



Quote:
The color space is expected at a digicam indeed be some RGB, will convert the already translated automatically into the correct color space? Looks ok but out on the TV, but little has been that typical digicam look. Virtualdub has since diverses, 4:2:0?

The codecs are used to use with the highest probability as a 4:2:0 color space. RGB would be a waste and is not included in the codecs synonymous with the cameras typically compress the. The change in the representation s.Monitor the graphics card, or the decoder of the Picture takes decoded. The digicam itself - if s.TV is connected - (also send just the usual analog CVBS signal, or anything digital via HDMI).

Quote:
It has indeed in mjeg "640P" frames, ie frames. The DV is then (; upscaled) 25p. Should one full frames for more fluid movement now retrospectively somehow interlace ", or is this all? One always reads deinterlace only of "."

Since you have 25p synonymous with only 25 real images, it will not bring this material to interlace. There are no new images being added by the usual 25p judder can not avoid it. So keep the same progressive. The only advantage of pseudo-interlaced Progressive is the compatibility with older video editing programs.



Antwort von ennui:

Quote:

Movies are copied via USB to calculator, and then inserted via Virtualdub in a letterboxed 720x540 DV resolution in the


and

Quote:
So you can now convert the material into a DV codec like the Panasonic of, and then further process the material in the DV-editing program as usual frame accurate.

will not work


But going into virtualdub with "smart resize". The letterbox is indeed inserted with black bars in the 720x576 frame. Did I even just made. One can of course distort synonymous to full screen.

With interlace is then probably nothing, but it has indeed synonymous its charm. Really very filmlike, with stroboscopic with moving wheels, motion blur, etc. About the codec you would need to know more stop.



Antwort von hannes:

For me, there is currently no better than the Lumix TZ7

720p50!

Meanwhile I made several short films with it. Dirty rat!
Heart, what you will, the sea?



Antwort von Bruno Peter:

To be a full-HDTV must be scaled by a factor of at least 2.25, are coarse pixels.



Antwort von tommyb:

Quote:
But going into virtualdub with "smart resize". The letterbox is indeed inserted with black bars in the 720x576 frame. Did I even just made. One can of course distort synonymous to full screen.


You may, however, already clear that what you will get nothing to do with DV too? There are then square pixels, embedded in a stream of rectangular pixel must have. If the whole is equalized later correctly, your picture and have the great black bands have slightly fat man.



Antwort von ennui:

That's right, the digicam delivers square pixels. So completely is probably not the best, if there is hardly synonymous distorted. Nevertheless, it can be that it would often cut like DV and correct. The narrow beams interfere hardly synonymous, which swallows up the overscan.

For the Hdtv'd probably nothing wrong.

How to convert it for right? At the moment I bicubic scale. It is possible for "smart resize" instead of letterbox in new frame or expand to width / height synonymous (give a new aspect ratio, 1:?). What would it be for, or how one would come in correctly otherwise Virtualdub of 640x480-pixel square to rectangular, 720x576? Color correction and by feel, or certain color space conversion? -20% Saturation and deep sounds somewhat expanded already makes her a lot. And if I do not want to inflate jpeg artifacts with - before Blurr? The Kantenaufsteilung remove any other way? or de-blocking? or sharpen at all? Logically resize the very end, or even correct resize first, then? Questions, questions.



Antwort von tommyb:

Aspect Ratio to Disabled

Absolutely New Size (on "; pixels). Width 704, Height 576th

Framing Options "Enter Letterbox / crop to size" and then 720 x 576th

So that you have left and right little black bars. However, this is the correct scaling of square pixels in DV.



If you want to have a full screen, then you must enter at 720x576 and Framing Options "Do not letterbox or crop left. This distorts the picture a little bit, not necessarily to fall to the untrained eye.



Antwort von ennui:

Thanks, works great. Beams are very narrow, be swallowed up by the Pal-TV overscan to vote proportions.

With this camera, or perhaps at most, is the color saturation and contrast of the video turned up too far (; "great picture"), whom we as 20-30% and 10-20% saturation, contrast rausdreht, and the dark tones something plumes, one comes with a little work, the result according to taste and then either correct recalls little s.Super8 (; frames) color, contrast, volume, or s.billige bulky S-VHS cameras 15 years ago ( ; sharpness 8khz mono sound). Somewhere in between.

Best sequence: bicubic deblocking, inflation, convert, color correction program in the editing. Is it synonymous with corresponding plugins but have to make when converting. In any event, the films arrive on DVD so without stuttering, and can now synonymous otherwise be treated like DV. Ensure that you get these cameras for around 100 euros, and they fit in your pocket, not really bad. If all you probably looking for a camera, or for cases where you wanted to take any equipment.

Again, the request to further nachzutragen known 25fps old and current models, or synonymous HD models, which can be 25fps offer, and runterskaliert by finishing in a Pal-SD-Schnitt/DVD-fähiges format.

Ah, yes: Which phones are really just a fluid VGA movie mode at 25fps?




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