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Forum: Video and Pentax HDSLRs 09-05-2011, 12:28 PM  
22 DIY DSLR Camera Rigs
Posted By inferno10
Replies: 5
Views: 4,829
Good stuff. I just ordered that MX2 dolly engine, as I want to start trying out doing Timescapes-esque stuff. Thanks for the link!

- Jason
Forum: Video and Pentax HDSLRs 08-12-2011, 12:54 PM  
What is the function difference of using stabilizer and rig
Posted By inferno10
Replies: 3
Views: 1,858
That has been my experience. A rig works great for much of what I do. It's much easier to work with than a stabilizer as well, especially if you want to pull focus.

- Jason
Forum: Video and Pentax HDSLRs 08-10-2011, 12:03 PM  
What is the function difference of using stabilizer and rig
Posted By inferno10
Replies: 3
Views: 1,858
Both try to accomplish the same result: stabilization of your video. However, which one you use depends on how you plan to shoot. If you're going to remain relatively still, do very little walking, a rig is what you will most likely want to use; standing interviews are a good case for a shoulder rig. However, if you plan to do a lot of walking around, like following a person or doing a fly-thru of a scene, then you'd most likely want a stabilizer.

- Jason
Forum: Video and Pentax HDSLRs 07-31-2011, 09:07 AM  
panning smoothness
Posted By inferno10
Replies: 8
Views: 1,663
At the pan speeds in the video, I would have expected to see quite a bit of rolling shutter effect. Are you using any sort of filter or app to reduce the effect?

- Jason
Forum: Video and Pentax HDSLRs 07-16-2011, 10:48 AM  
K-7 HD Wedding Highlight Reel
Posted By inferno10
Replies: 19
Views: 4,758
Very nice editing. Your video definitely shows that the K-7 is capable for video work.

- Jason
Forum: Video and Pentax HDSLRs 07-16-2011, 10:36 AM  
Pentax KX Video stabiliser.
Posted By inferno10
Replies: 5
Views: 2,897
I've used the Steadicam Merlin before. It's a true PITA to setup, as there's no published settings for Pentax gear on the cookbook website, but once you figure out the proper balance, the video looks like like the camera is floating on air. Very pricey though.

The Flycam Nano looks be a cheaper option, but you'll have the same problem of figuring out the balance settings on your own.

Here's a video I took that demonstrates what I was able to get with a Steadicam Merlin and non-optimal settings (had to come up with the settings on the fly):
















You Tube



Forum: Video and Pentax HDSLRs 06-28-2011, 09:55 PM  
Pentax Q with 1080p30 H.264 video !
Posted By inferno10
Replies: 7
Views: 2,797
If we read between the lines, I think that Pentax is finally going to start dropping MotionJPEG in favor of H.264. I hope this means their next DSLR will use H.264...

- Jason
Forum: Pentax News and Rumors 06-04-2011, 10:06 AM  
GPS Pentax DSLR's
Posted By inferno10
Replies: 85
Views: 16,143
PREPARE THE BROOM CLOSET!

- Jason
Forum: Pentax News and Rumors 06-04-2011, 09:39 AM  
GPS Pentax DSLR's
Posted By inferno10
Replies: 85
Views: 16,143
That Pentax JP site this posted has an example of how the astrotracer can improve your astrophotography: ??????????GPS UNIT O-GPS1?PENTAX

But looking at the pair of photos with the tree, I would guess that you wouldn't want any nearby still-life objects in the shot or else the SR would blur it out while correcting for the star trail.

- Jason
Forum: Video and Pentax HDSLRs 05-17-2011, 01:20 PM  
Time lapse video
Posted By inferno10
Replies: 12
Views: 3,728
I see some haloing on the first clip. Did you perform tone mapping (HDR) on the first two clips?

Really cool video!

- Jason
Forum: Video and Pentax HDSLRs 05-17-2011, 01:15 PM  
720p 25fps, class 4 SDHC?
Posted By inferno10
Replies: 7
Views: 9,171
From my experience, not all brands are created equal when it comes to card speed. I too have had very good performance from SanDisk SDHC cards, where even my SanDisk Class 2 card is able to recorder longer durations than my Transcend and PNY Class 6 cards. On the other cards, I see the orange card access light remaining on much longer than when using my SanDisk cards, making me think the other brands aren't as efficient (YMMV).

Also, a Class 10 card (even non-SanDisk ones) are overkill for this camera. If I were you, stick to a SanDisk Class 4 or Class 6 SDHC or SDXC card with the largest capacity you can find. You'll pay more, but you should be able to record longer lengths of video without having to worry about the buffer playing catch-up.

- Jason
Forum: Video and Pentax HDSLRs 05-12-2011, 09:17 PM  
How to get the best video quality in youtube and vimeo.
Posted By inferno10
Replies: 8
Views: 6,288
In Final Cut Pro, I usually export using Quicktime conversion. If you're in Quicktime 7, you can do Export, then choose Movie to Quicktime Movie as the Export, and select Options.

I typically set the Compression to H.264, and the frame rate to 24 FPS, leaving Key Frames at Automatic, with Frame Reordering checked. I typically restrict Data Rate to 20480 kbits/sec, and have the Compressor Quality to Best, with Best Quality (Multi-pass) selected.

YouTube and Vimeo typically work great with these settings.

- Jason
Forum: Video and Pentax HDSLRs 04-28-2011, 09:35 PM  
What's your video rig?
Posted By inferno10
Replies: 6
Views: 5,175
At $100, you're not going to find many pre-built slider options. At that price, you're gonna have to resort to a DIY project. Igus makes a linear motion system that many videographers have turned into a decent slider. The cheapest option starts at $159 though. If you really want to stay below $100, your best bet would be to make a slider out of PVC piping and felt.

I'm not the best person to recommend tripods, but from what I've experienced so far, you're going to want a tripod that can really support heavier loads, more than you would expect with just camera gear. The reason is that you will most likely have a rig that will mount on top of the tripod. If you're just going to mount a DSLR and record video, then any decent tripod should work. I personally just use my camera tripods (as shown in the picture in the original post) and monopods with no problem.

- Jason
Forum: Pentax K-5 04-24-2011, 09:34 PM  
Got my new K5 but possible issue, uploaded a video of it...
Posted By inferno10
Replies: 31
Views: 5,942
Does this happen when you start up LV when the camera isn't on the tripod?

- Jason
Forum: Video and Pentax HDSLRs 04-17-2011, 07:27 PM  
Large Videos
Posted By inferno10
Replies: 9
Views: 2,494
I swear by the application called MPEG Streamclip. It can convert almost any video format to any other video format. If you don't plan on editing your video and just want to upload, you can convert your video to an H.264 MPEG-4 clip. This is a very efficient codec.

MPEG Streamclip is free, and it's available for both OS X and Windows. You can download it here: Squared 5 - MPEG Streamclip video converter for Mac and Windows

- Jason
Forum: Video and Pentax HDSLRs 04-17-2011, 07:21 PM  
Time lapse video
Posted By inferno10
Replies: 12
Views: 3,728
That time lapse was around 250 frames; the intervalometer was configured for 10 second intervals between exposures. Prior to converting the stills to video, I did a quick white balance to sync up all the frames. Creating an editable video from the image sequence was quite fast through Quicktime. Because I only had around 250 frames to work with, I used a plugin called Twixtor to slow down the playback speed to 50% in order to lengthen the playback; this required interpolating frames, which consumes a lot of CPU power, so this was the slowest part of the process. All in all, I spent around 4 hours editing the piece together and rendering.

- Jason
Forum: Video and Pentax HDSLRs 04-17-2011, 01:31 PM  
Time lapse video
Posted By inferno10
Replies: 12
Views: 3,728
I just started interested in time lapse video after seeing some really cool videos taken on a K-5 by darwinfish105 on YouTube. March 26 was Earth Hour, so I decided to drive out to the Golden Gate bridge and attempt a time lapse video since I'd have an hour to kill. I had to use my 5DmkII because I didn't have a wide enough lens on the K-5 anymore. I REALLY wish I could have used my K-5 for this shoot, as it is easy to use the built-in intervalometer instead of the external intervalometer I had to buy for the 5D; I ended up losing a bit of the beginning, especially when the bridge actually went dark, because I couldn't work the darn remote intervalometer.

Anyway, here was my attempt:















You Tube




I'd like to see your time lapse videos to give me other ideas on what to attempt.

- Jason
Forum: Video and Pentax HDSLRs 04-13-2011, 09:57 PM  
What's your video rig?
Posted By inferno10
Replies: 6
Views: 5,175
I have mixed opinions on the indiFOCUSmini follow focus. I really dislike their snap gear system. While the snap gears make it easy to quickly attach to and detach from the lens' focus ring, the snap gears are quite bulky and somewhat heavy; this bulk becomes somewhat burdensome if traveling. You also need to have the proper adhesive rubber grips attached, or you won't have an even grip on the focus ring; this will lead to gear slippage or very tight fit, making it difficult to turn focus.

If I had a second chance, I'd settle for the D|Focus v3 instead.

- Jason
Forum: Video and Pentax HDSLRs 03-23-2011, 12:10 PM  
Second try (tried really hard)
Posted By inferno10
Replies: 15
Views: 4,198
I don't have much to add about the video, but congrats on landing the job.

I'm uncertain whether I saw lasers in the video. If that club does has laser machines, my word of advice would be to make sure you keep the sensor pointed away from them. High-intensity lasers can permanently damage your sensor if they directly hit your sensor.

- Jason
Forum: Video and Pentax HDSLRs 03-22-2011, 08:25 PM  
What's the cheapest audio recorder with XLR inputs?
Posted By inferno10
Replies: 2
Views: 10,636
If you want a portable setup, I highly recommend the Zoom H4n. This portable recorder lets you add up to 2 external inputs, either via XLR or 1/4"-phone jack. The H4n also has its own built-in stereo mic, and can record up to 4 channels so you can combine the built-in stereo mic with your 2 additional external inputs. This model records 24-bit audio at 96kHz, which is much better than the K-5. It has a tripod mount if you want to attach it to a tripod or to your rig. It's also very rugged. The H4n takes SDHC cards and can connect to your computer via USB 2.0. It is a bit pricey though at $299 (Amazon.com: Zoom H4n Handy Portable Digital Recorder: Musical Instruments), but you get a great stereo mic recorder that can record 4 channels with timestamps.

- Jason
Forum: General Talk 03-11-2011, 04:50 PM  
Quake In Japan
Posted By inferno10
Replies: 27
Views: 7,992
If you're in the US and would like to donate to help any victims of the earthquake and tsunami in Japan, I would recommend making the donation to the American Red Cross. They set up a fund specifically for this disaster, and you can be assured your money will go towards helping those in need.

You can donate $10 by texting REDCROSS to 90999, or you can donate another amount by visiting the Red Cross' online donation site at https://american.redcross.org/site/Donation2?idb=0&5052.donation=form1&df_id=5052

If you're in another country, you can donate online to the International Federation of Red Cross and Red Crescent Societies, which encapsulates all the various international Red Cross or Red Crescent organizations around the world: http://www.ifrc.org/en/get-involved/donate/donation/

- Jason
Forum: Video and Pentax HDSLRs 03-06-2011, 12:07 AM  
What's your video rig?
Posted By inferno10
Replies: 6
Views: 5,175
On the photo side, we all have our special gear (tripods, straps, etc). I'm still new to the video rig scene, and I'm curious what everyone else is using with their video DSLRs.

I'll start. The photo below is pretty much the my entire video rig pieced together. It's a bunch of purchased stuff pieced together into a modular rig.

Attached to the two tripods is a Konova slider. This piece allows me to do short dolly motions. It provides a very smooth back-and-forth or side-to-side motion.

Directly attached to the slider is a Manfrotto 700RC2 video head. I don't believe this is a true fluid head, but it does provide me with adequate fluid-like pan and tilt motion. I like using this Manfrotto head because I can use my existing collection of RC2 quick-release plates. These quick-release plates are key to making my entire system modular.

Directly attached to the fluid, via a Manfrotto RC2 quick release plate and a tripod to double-rail adapter, is a mobile handheld rig that I named "Stowaway Stu." It's mainly based on an express35 Run-N-Gun Duo rig with most of the aluminum rails replaced with carbon fiber rods to save on weight. I have 2 jag35 single rail clamps that are attached to one of the two main rails on Stowaway Stu. One of these rail blocks is holding an Okii USB follow focus (FF), which lets me control the AF motor like a regular follow focus would on my 5D; if I am using the K-5, I have an indiFOCUSmini follow focus with several snap gears that attach to the lens. The other rail block is holding the Azden SMX-10 shotgun mic; the positioning of the mic was done in order to minimize the mic's exposure to the lens AF if using the Okii USB FF. Lastly, I have a Manfrotto 323 quick-release shoe onto which my DSLR, fitted with another RC2 plate, locks into.

My use of the RC2 plates lets me modularize everything. I can quickly detach my DSLR from Stowaway Stu and mount it directly to the fluid head, or my regular camera tripod, which has a Manfrotto 484RC2 ballhead w/ RC2 shoe. Similarly, I can quickly detach the Stowaway Stu rig and go handheld, or transfer it to the tripod for additional stability.

Not pictured is an Azden WLX-PRO wireless lavalier mic and a HDV-Z96 LED light array.

Now that I explained my crazy rig, I want to see what you use as a video rig.

- Jason
Forum: Pentax K-5 01-23-2011, 01:09 AM  
Max. video recording time?
Posted By inferno10
Replies: 29
Views: 12,955
I own a SanDisk 64GB SDXC card, and 25 min is the limit. You can verify yourself even without an SDXC. Set the movie quality to VGA/25 and 1*, which is the lowest quality possible, and try with your 8 GB SDHC cards. You'll see that 25 minutes is the maximum time possible, even if the card can hold more than 25 minutes.

- Jason
Forum: Pentax K-5 01-21-2011, 11:37 AM  
Max. video recording time?
Posted By inferno10
Replies: 29
Views: 12,955
Actually, Pentax imposes a 25 minute maximum recording time. So the camera can record up to 4 GB or 25 min, whichever is less in terms of time.


Source: Digital Cameras and Accessories - Official PENTAX Imaging Web Site

- Jason
Forum: Pentax K-5 01-20-2011, 05:45 PM  
Has the exposure problem with flash been solved?
Posted By inferno10
Replies: 35
Views: 7,952
Ok, I made a quick video illustrating the issue I'm having. P-TTL communication is sporadic on my K-5. When powering on the camera and flash sometimes, P-TTL will not be enabled. When P-TTL is recognized, however, the flash will usually revert back to TTL after a few shots, messing with the zoom, or just letting the camera idle. It's easy to see it on my Metz flash, as it tells you when P-TTL is enabled or not. On a Pentax flash, there's no such indicator, so the only way to know is when the flash ends up firing a single full-power blast instead of the pre-flash+controlled blast.

This happens in both Auto ISO and when an ISO is selected.

Can anyone else with a K-5 and a Metz flash confirm this result?
















You Tube




- Jason

EDIT: I updated to the latest stealth firmware revision and can confirm the problem still exists.
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