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william_koehler1

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Posts posted by william_koehler1

  1. <p>1. Recording in 8 minute intervals: It is routine for DSLR's to stop recording when the video file size hits the 4 GB file size limit of FAT32, which is most often how the flash card is formatted. This is true of Canon, Nikon, and Pentax. Panasonic's GH1/2/3 series of MILC's is the exception to the rule, which is part of why they are so popular. You can setup a locked down shot, punch record, and that GH1/2/3 will run until the battery goes flat or the card is full. In Europe their tariff law taxes video cameras higher than still cameras with the legal differentiation being whether a camera can record more than 29 minutes 59 seconds. So the manufacturer has another reason to build in a limit so the camera is a legal still camera everywhere.</p>

    <p>2. The recording option for video on the K-5 is AVI. It says so on page 171 of the manual. It's probably Motion JPEG, a less efficient codec than MPEG-4/AVCHD. Which is why it stops at 8 minutes instead of ~12 minutes like Canons - Pentax is running at a higher bitrate to compensate for the lack of efficiency.</p>

    <p>3. No, there isn't a way to convert video files in Photoshop. You are going to need something else, whether that is Windows Movie Maker, Adobe Premier Elements, or something else. I use Sony Vegas. You may get by using VLC ( <a href="http://www.videolan.org/vlc/">http://www.videolan.org/vlc/</a> ) or Handbrake ( <a href="http://handbrake.fr/">http://handbrake.fr/</a> ). I have personally used Handbrake for creating video files for a Nook Tablet. It is a very flexible, powerful, high quality, and free video file converter.</p>

  2. <p>A few of the answers with respect to the K-01 did not make sense to me:</p>

    <p>1. "An optical viewfinder will be quite meaningless as all of the K-mount lenses can be used."</p>

    <p>I understand that an optical viewfinder won't go on the K-01, but what that has to do with the lenses escapes me. It has to do with the lack of a mirror box.</p>

    <p>2. "As you could see (in the K-01), an electric interface for an EVF is not present."</p>

    <p>Actually, an electric interface for an EVF is very definitly present. It is called the HDMI port. Unless he is telling us it isn't live while on preview/record but only during playback.</p>

  3. <p>"Do you click on DPReview hoping for Pentax news?"</p>

    <p>Absolutely. Given Pentax has been building their DSLR line around Sony imaging chips, the release of the new 16 MP and 24 MP APS-C sensors from Sony just begs for a Pentax response. Given the oldest body in the Pentax lineup is the K-5, that is what I would expect to receive the upgrade.</p>

  4. <p>The movie/interview was a very nice piece.<br>

    I routinely shoot video at my church. Recently I did a two camcorder (Canon HF-S200, Sony HDR-HC9) hour long shoot along with an audio recorder (Sony PCM-D50) plugged into the soundboard. Putting all of the above into a video editting timeline (Sony Vegas Movie Studio 10) and getting them all in sync is not at all difficult.<br>

    The issue I would have in selecting the K-r for video is that it shoots 25 frames /sec. Given I live in the USA where the TV standard is 30 fps, that's an odd pairing. Generally speaking, one shoots at the delivery framerate so as to avoid having to do framerate conversions, which never does your footage any favors.</p>

  5. <p>I hate to be the grinch, but this is part of the reason Adobe has a free trial download of the program.</p>

    <p>On a brighter note, I have a 2.4 Ghz Core 2 Quad Q6600 with 4 GB of RAM, 3.5 usable, running Windows XP Pro. The events I shoot for my church range from 45 minutes to two hours in length, using HDV (25 Mbps 1440 x 1080 MPEG-2) codec. Using Sony Vegas Movie Studio 9 Pro and doing fairly simple cuts, fades, exposure, and contrast correction...no problem.<br>

    Enormous is not very descriptive. HDV runs 13 GB per hour, and that may seem like a lot, but in the video/cinema world it is at the basement end of things. It is all what you are used to. So is slow. My rig renders from HDV to DVD compatible video in near real time. That means an hour program will take an hour+ to render. What are your expectations for speed? Can you translate that to Frames per Second?</p>

    <p>And having a Pentax K-x, I can assure you that the MJPEG codec is at the utter low end of the computationally intense codec end of things. My rig cuts through it like a hot knife through butter. Yours should too. Moving to a 64-bit OS is not going to change things much. Reason? You're running a 32 bit app, which among other things means that app can use at best 4 GB of memory, regardless of how much memory you load into the computer or what OS you run on it.</p>

    <p>I wouldn't worry about the video card to much. At this (entry) level, the video editor uses it mostly for pushing video frames to the screen. At this level it is much less a factor in video editting than in say, game play.</p>

    <p>To me it sounds like something else is wrong, but what i can't put my finger on...I'll give the free trial a look...</p>

    <p>One big, big possibility is the fact the K-5 shoots 25 Frames/second video, which is fine if you live in PAL land. If on the other hand you have your footage sitting in a 30 fps (NTSC) timeline, then the program is probably trying to do a frame rate conversion. Generally speaking, frame rate conversions are BAD and TIME INTENSIVE. And it is this that is slowing it way, way down. A quick test would be to set the project properties to PAL(25 fps) instead of NTSC (30 fps), retry a render or play, and see what happens.</p>

    <p>It's a big reason the K-5 does not appeal to me - I live in the USA, the heart of NTSC 30 fps land.</p>

  6. <p>Keep in mind the following, Bob.</p>

    <ol>

    <li>The K-7 shoots 720p30</li>

    <li>The K-x shoots 720p24</li>

    <li>The K-r shoots 720p25</li>

    <li>The K-5 shoots 1080p25.</li>

    </ol>

    <p>North American NTSC standard is 30 FPS, European PAL is 25 FPS, and movies are at 24 FPS. So which resolution+frame rate best meets your needs? In my opinion, this is a big reason Canon is cleaning up in the DSLR as video camera market. They have just about all the standard resolution AND frame rate standard combinations covered in their 60D, 7D, and 5D Mark II models.<br>

    By the way, I have a K-x. Video is not what I bought it for, but it does work reasonably well.</p>

  7. <p>For Pio Sao Paulos' benefit: The Pentax KX is an old 35mm film camera from the 1980's era. The Pentax K-x is a current model DSLR with an APS-C (24mm x 16mm) digital image sensor.</p>

    <p>I have both a Pentax K1000 (35mm film), ZX-5n (35mm film), and K-x (APS-C digital) cameras.</p>

  8. <p>If your seriously looking at the Panasonic DMC-GH1, I would wait until the German photo show next month, whose name escapes me at the moment, is over. That would be a natural place for Panasonic to announce the DMC-GH2, or whatever they choose to call the successor model. They might even announce a consumer u4/3rds camcorder with photo capability.</p>
  9. <p>1. While shooting video, using Live View is mandatory, after all, the mirror is up so the normal view finder is blind. This is going to be true for any camera with a Reflex mirror.</p>

    <p>2. The clip length of the K-x is 4 GB, which at ~5 MB/sec. works out to just over 13 minutes. When the camera hits the file size limit, it stops. Mind you it only takes a button push or so to get it going again, but it is NOT automatic roll-over to another 4 GB file, and as far as I know it is the same for any other DSLR as well.</p>

  10. <p>Yes, there is a difference. I have the original 18-55mm as well as the K-x kit lens.<br>

    The K-x kit kit lens has a plastic base plate were it mounts to the camera. The original 18-55 as well as the 18-55 AL II has a metal base plate - following the link you gave, you can see it edge on in the picture of the lens.</p>

  11. <p>For doing firmware updates...<br>

    <br />I would plug the product, in this case a camera, into an AC adapter which then plugs into a UPS (Uninterruptible Power Supply) which then plugs into the wall.<br>

    <br />Doesn't matter who the product is made by, Pentax, Nikon, Canon, or Asus (motherboard manufacturer). The reasons for this should by now be only to clear...and also how I know. Been there, done that.</p>

  12. <p>Given the lens being discussed is a DA, it is intended for APS-C sensor use. What I believe you are referring to is using a lens designed for 35mm full (film) frame use and putting it on an APS-C sensor camera - the outer portion of the image the lens is producing, which tends to be softer than the center, is never seen by the sensor. That's not the case here.</p>

    <p>What is the case though is even a Full 1920 x 1080 video frame is just that - a ~2 MPixel image - very low resolution by still image standards. So there is a reasonable possibility that the softness seen at high res. in stills will not be seen in video. Only one way to find out. The remaining concern would be possible chromatic aberration.</p>

  13. <p>Don't feel to bad. I just checked at the link I gave above and now B&H shows it as Discontinued, again. So I would assume it is out of production and the warehouses are being emptied out. What makes it unfortunate is I figured this would be a great lens for doing video work with, given its zoom range.</p>
  14. <p>When shooting video from a tripod, turning image stabilization OFF is standard operating procedure. The reason is that the tripod already provides (or should) a stable platform. When you then either pan or tilt to follow something, the camera is prone to initially interpret this as motion that should be cancelled. Of course, at some point the camera has to catch up with what you are doing, and at that point, what happens next may not be as pretty as you hoped.</p>
  15. <p>There is another, less pleasant, explanation. It has been noted that Pentax's lens roadmap does not extend very far into the future - just a few months. We all know Pentax's market share is very low. You go into any of the big box stores and they are not there. And the economy is in the toilet. This could very well be make or break time for them.</p>
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