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Forum: Video and Pentax HDSLRs 12-11-2010, 03:36 PM  
AE-L Overexposure workaround
Posted By dande
Replies: 6
Views: 2,887
I'm glad I've helped!
Forum: Video and Pentax HDSLRs 11-24-2010, 03:06 PM  
AE-L Overexposure workaround
Posted By dande
Replies: 6
Views: 2,887
So, I guess us Pentax users just have to live with a lot of work-arounds. :) I haven't found this information anywhere yet, so why I am posting it now.
My main problem was, that when AE-Locking and starting a recording I've got overexposed images.
So, if you do a AE test (or DOF test) by pulling the on switch to the right, and holding it there, and while you are doing the AE test, you lock the exposure, you will get correctly exposed video when you hit record.
Hope this helps someone.

Edit: this was tested on the K-7 with the latest firmware.
Forum: Video and Pentax HDSLRs 09-24-2010, 01:10 AM  
Sticky: The Guide To Manually Controlling Video Exposure on The K-7
Posted By dande
Replies: 98
Views: 76,938
To be honest, the 33khz sampling rate could be because of the hardware limiting the choices, but manual control over the audio level, manual controls in video recording is only a firmware issue, which looks like it isn't important for Pentax. :(
Forum: Video and Pentax HDSLRs 09-22-2010, 02:03 AM  
K-7 -> Vertical banding in low light black and white video
Posted By dande
Replies: 2
Views: 2,825
Hello,
The vertical banding is caused by the lightings flickering. Since neither Pentax models support manual video controls to date, you have to use the AE-L "hack" for manual controls. Don't forget that there is a 180 degree shutter, so you have to set around 1/125 shutter to get rid of the flickering (vertical banding).
Forum: Video and Pentax HDSLRs 09-21-2010, 04:50 AM  
Rumoured video specs for the K-5
Posted By dande
Replies: 27
Views: 5,455
and even faster computer to work with those files. :)
Forum: Video and Pentax HDSLRs 09-21-2010, 02:40 AM  
Rumoured video specs for the K-5
Posted By dande
Replies: 27
Views: 5,455
Exactly. The hottest trend is video mode, while almost all competitors now have at least manual controls, but some have manual audio controls and many other additions which are mostly software design solutions, Pentax failed to deliver anything to the cinematographer world. In my viewpoint K-5 is nothing more than a K-7 with a better sensor and some improvment in AF speed. So sad, but still hoping, maybe Pentax will announce manual mode firmware for K-7 and K-5 (haha, yeah right)
Forum: Video and Pentax HDSLRs 09-20-2010, 11:47 AM  
Rumoured video specs for the K-5
Posted By dande
Replies: 27
Views: 5,455
Yup, the current firmware doesn't support full manual control (to be precise, the movie recording options are the _same_ as in the K-7 with the addition of 1080p). There is a chance that it will be released as a firmware update, but chances are the same for the K-7 too. So I'm sticking with the K-7, and probably switching to 60D or the D7000 in the future.
Forum: Video and Pentax HDSLRs 09-13-2010, 01:16 PM  
Rumoured video specs for the K-5
Posted By dande
Replies: 27
Views: 5,455
While I think that Pentax won't offer any further updates for the K-7 regarding movie mode, there is still a little hope. After the release of the 645D, some of the firmware features of it (like Cross-Process filter) was integrated into the K-7 firmware (1.10), so technically, if there is no hardware limitations on the K-7 (which I find more than likely), there is a slight possibility of the K-7's firmware inherit this. Just don't give our hopes up. ;)
Forum: Video and Pentax HDSLRs 09-13-2010, 02:01 AM  
Rumoured video specs for the K-5
Posted By dande
Replies: 27
Views: 5,455
These specs look nice, but I really miss the 24P mode. Also, what do you think: Pentax will release a firmware update for the K-7 including the new movie recording modes, or will they go with "just buy the new K-5" business plan? :D
Forum: Video and Pentax HDSLRs 09-13-2010, 01:52 AM  
Are there issues with video and Sigma HSM lenses?
Posted By dande
Replies: 11
Views: 2,996
Usually current HD-DSLRs are lacking continuous auto-focus, because in DP world, there is no need for it. When shooting a movie, a shot cannot rely on the camera's focusing algorithm, the current focus is always determined by the director/DP and set by the 1st AC. Also, count in the hardware issue, it is much harder to do autofocus on an APS-C or 35mm sensor, than a very small 1/2" 1/3" sensor (because of the depth of field). As mentioned before, the K-7 could do C-AF in Contrast detect mode, but it was proven to be so bad, that is was removed from the final firmware.
Forum: Pentax DSLR Discussion 09-09-2010, 12:04 PM  
I have a Pentax k-x but am thinking of getting a k-7 but worried about ISO performanc
Posted By dande
Replies: 19
Views: 3,712
I'm using the K-7 all the time, with various ISO settings, and seen the K-x used in low lighting, but to be honest, when using both without noise reduction (in RAW), there is no huge difference between the two. Also, there are very good noise removing solutions in post. Probably one of the best is Neat Image, but also Topaz Labs and other third parties have great solutions, and I've really liked Lightroom's built-in noise removal (when I was using it, in version 1, I think. :))
Forum: Video and Pentax HDSLRs 08-30-2010, 05:17 AM  
Sticky: The Guide To Manually Controlling Video Exposure on The K-7
Posted By dande
Replies: 98
Views: 76,938
You cannot shoot slow-mo by adjusting the shutter speed. slow-mo is achieved by using a much faster frame rate than 30 (or 24,25,etc).
Forum: Video and Pentax HDSLRs 07-31-2010, 12:51 PM  
Sticky: The Guide To Manually Controlling Video Exposure on The K-7
Posted By dande
Replies: 98
Views: 76,938
Sorry jimiz, but I don't really get you. Why on earth do you demand 25P? I live in Europe, and I have found yet no drawbacks of the 30P only the fact that it isn't 24P "cinema" mode, but to be honest, it is something I think a bit overreacted (sorry C. W).
Just go out, take nice pictures, shoot great movies, you can. If it was possible with a 8mm camera, it is certainly possible with a K-7. :)
Forum: Pentax DSLR Discussion 07-31-2010, 06:23 AM  
Speculation: What if Pentax did not go FF but rather a 1.3x?
Posted By dande
Replies: 36
Views: 7,594
True, too many speculations, I myself can even hardly believe that Pentax will switch to Full-frame in the near future, not to talk about yet another sensor format.
On topic: The would have to introduce new lenses more suited for the bigger sensor, since the current lenses (which aren't fullframe) are exactly optimized for the 1.6x crop factor. Cheers!
Forum: Video and Pentax HDSLRs 07-29-2010, 01:45 PM  
Sticky: The Guide To Manually Controlling Video Exposure on The K-7
Posted By dande
Replies: 98
Views: 76,938
It still works with 1.10
UPDATE: So I've had more time to check out the new firmware. Must say, I am greatly disappointed. It now seems 100%, that Pentax will not release manual mode movie recording to the K-7, they are keeping it for the next cameras to drive it's sales more. It is sad. But more about the 1.10 firmware:
- As told you earlier, the manual mode "hack" still works thankfully
- Maybe a little less noisy at ISO400, haven't checked out ISO800 yet
- Movie editor makes the camera feel like a little toy. I mean, it is great addition, but I thought such a thing only exists in P&S.
- I think LV AF when the shutter is halfway down is a bit annoying when recording movies, but probably a nice addition, again, a little bit P&S.
My feeling is that Pentax is trying to push the K-7 closer to the K-x instead of making it more pro-level.
Sorry, these are my thought on the new firmware. Probably true Pentaxians will again, hate me.
One more thing: The only addition I did like is the reversal film mode. But, for those who color afterwards, it is simple non-usable. So after Pentax made a lot of workshops about DSLR filmmaking, made a short with it, made their own commercial with it, still failed to bring in the one and most important thing for the amateur filmmaker: manual controls for movie editing. :-(

UPDATE 2: So, even more play. I see some noticeable improvement with low light ISO when using Muted color mode. Just turn the High/Low Key Adj down. Could anyone confirm this?
Forum: Video and Pentax HDSLRs 07-16-2010, 04:01 PM  
Pentax K-7 video versus Canon T2i
Posted By dande
Replies: 11
Views: 5,471
Editing 1080p videos do need a rather fast computer, and you stuck with the H.264 compression, which is even harder to edit (more CPU is needed for decompressing the frames). Sometimes even editing (coloring, etc.) the 720p source takes a lot of time.
Anyways, T2i is better for having manual controls. I like the IQ of the K7 better, I don't like the harsh look the T2i gives. But that's just my opinion.
Forum: Video and Pentax HDSLRs 07-16-2010, 03:49 PM  
For C.W Tsorotes
Posted By dande
Replies: 5
Views: 2,147
First and foremost. There is a huge difference (sadly) between a picture in still mode and a frame in video mode. Video taken with the Pentax K-7 or K-x (or infact all other HD-DSLR) uses "line-skipping", which means that not all pixels are read out, it skips out 5 or so pixels for every pixel, making the process a lot faster, well, currently making it possible on DSLR hardware (the next digital camera that doesn't do line-skipping is the RED One, but it's not a still camera :)).
So this brings us to the next question, controlling the ISO. Because only a couple of pixels are read out, noise becomes much more noticeable, even in lower ISO values, and as I know, in video mode, the sensor picks up noise easier. So this is the main reason why there is an absolute need for ISO control in video mode. Why doesn't the DSLRs do bilinear or similar scaling from 15MPs down to the needed 1.2 MP getting rid of almost any noise? Because current hardware cannot process so much data (can be houndreds of megabytes) per second, only dedicated ones found in much higher grade professional digital cinema cameras.
The shutted speed. Hopefully I won't talk too much nonsense here, but. Shutter speed shouldn't really mean the FPS, since all sensors contain something called a electronic shutter, which means, the sensor could be turned on or off while light hits it directly. So it means that while you can turn the sensor on for only 1/1000 second, the data is only stored 30 times per second.
Why is it important to change it. Besides getting rid of ugly flickering (currently almost impossible to do without a huge amount of luck), video to have a more film like look (and almost everybody who uses a HD-DSLR video mode want to achieve a film like look), we have to keep the shutter down. As been told earlier, high shutter speed renders the world in a much harsher, video look like way.
Hope I haven't told too much nonsense, it is getting late here.
C.W Tsorotes: I hope Pentax will sometimes soon change their mind about updating the firmware, and finally do it.
Forum: Video and Pentax HDSLRs 06-13-2010, 12:16 PM  
5x5 vignettes - Summer in the City
Posted By dande
Replies: 2
Views: 2,011
Thank you for your comment! I agree with you, but blowing out the image to this factor was actually a choice I've made to emphasize more on the temperature. I was interested on people's reaction, since I still have a lot to learn on videography. I think making it blown out so much was a mistake, I'll pull back on the next one.
Forum: Pentax DSLR Discussion 06-13-2010, 05:06 AM  
Frustration with Pentax
Posted By dande
Replies: 49
Views: 8,465
I still hope that besides introducing a new camera, Pentax will release some video improvements for K-7. But the question is again: than what will sell the new K8 (or whatever)?
Forum: Video and Pentax HDSLRs 06-13-2010, 05:03 AM  
5x5 vignettes - Summer in the City
Posted By dande
Replies: 2
Views: 2,011
Hey all!
A 25 second "collage" of 5 second long clips. Every clip came out of the camera as-is, not further editing or color correction was done on them. The only editing was stitching the shots together, the fade out on the end, and the background music. The "look" was made using the K-7's built in custom image function, with custom white balance, to make the video look like ever more "hot". The most demanding was the constant over-heat of the sensor.
As always, about the video controls on the K-7: The lack of manual controls is frustrating, irritating, but after a LOT of hacking, usually you can figure out a way. Still, Pentax have to release a manual mode firmware for the K-7. :)




Forum: Pentax DSLR Discussion 06-10-2010, 01:16 PM  
Frustration with Pentax
Posted By dande
Replies: 49
Views: 8,465
Transit: sorry, I will try to format my replies in future better.
Everybody: It is nice to see, that there are Pentaxians out there with similar thoughts about HD-DSLRs to mine. As clark told, currently Canon produces the top HD-DSLR line (the 5DMkII), but I hope the Pentax K-7 will catch up. I still hope for a firmware update.
I know, that probably I'm wrong on this issue, but I still don't get it, why Pentax cannot issue a press release whether they will make a manual mode firmware or not. Heck, I have no clue, why Pentax won't release a manual mode firmware. :)
Forum: Pentax DSLR Discussion 06-08-2010, 01:56 PM  
Frustration with Pentax
Posted By dande
Replies: 49
Views: 8,465
While Pentax does have every right to make engineering decisions solely based on sales, this is what I fear the most. As I have stated earlier, I believe that these requests are based on reality, probably the manual control is a little bit harder to do, but writing out current shutter/ISO information, cannot be hard to do.
Also, I believe (while some photographers will oppose me on this) that introducing a manual mode firmware will drive the K-7 and also the K-x sales way up. So many people interested in cinematography, who doesn't have the money for a 7D or 5DMkII, don't want the T2i.
I really hope (and still believe in) that Pentax will release some firmware update for us, videographers too.
Forum: Pentax DSLR Discussion 06-07-2010, 11:56 PM  
Frustration with Pentax
Posted By dande
Replies: 49
Views: 8,465
Please note, while saying that Canon abandoned the T1i users, that T1i did lack the needed hardware for normal video recording, also it was Canon's lowest end model, while the K-7 is the current high-end model for Pentax (obviously not considering the 645D).
Thank you dom777, I've hoped that finally someone would share the same views as I do. The K-7 could be a very serious player in the field, and still it isn't late, and they could easily drive the sales of the K-7 up, just by releasing a new firmware including manual video controls. Poorly, Philip Bloom is absolutely right, that the K-7 couldn't be compared seriously against Canon models which have manual controls (video wise). So it is really one of the most needed feature for the K-7. I hope Pentax does listen, and come up with something (as I've told earlier, even a current shutter/ISO display would help a LOT).
Forum: Pentax DSLR Discussion 06-07-2010, 01:48 PM  
Frustration with Pentax
Posted By dande
Replies: 49
Views: 8,465
I feel that saying video doesn't belong to DSLR-s is like saying professional photography doesn't belong to the digital camera field, a couple of years ago. While I agree, that Pentax is a company who never made a digital video recording device, I still cannot see why this should automatically mean, that they shouldn't improve on the video functions, at least for OSD information. Again, my biggest concern, is that Pentax won't update the K-7 or the K-x just so they can sell a new camera, with "better" video functions. Still, for full disclosure: I am not whining about me making a bad purchasing decision. I love my K-7. It is truly a great camera, I love using it.
I just hoped for something that would make it even better, and I am sad, not because Pentax failed to deliver the camera I wanted, but because I feel, that Pentax will release a new camera and won't improve upon what they already got.
Forum: Pentax DSLR Discussion 06-06-2010, 05:08 AM  
Frustration with Pentax
Posted By dande
Replies: 49
Views: 8,465
Which additional stuff you think of? You mean, the follow focus, monitor and etc? I don't really see anything unusual you have to attach on the 5D which you don't have to attach on a let's say Red One. Also, bigger and bigger productions start using HD-DSLR-s (think about the House finale). I think it is a very nice process. A lot of amateur filmmakers get opportunity to make outstanding shorts and features. I think it shouldn't be mixed with P&S videos or customer level camcorders. It is something very different. I don't know why it should belong somewhere else. Why can't photography and videography merge into one camera?
About software engineering: I know, I agree, I've had the opportunity in the past to be a part of a digital cinema camera team, so I know a bit about them, and I would be very surprised if the K-7 cannot have manual controls in movie mode, or at least displaying the current shutter and ISO on the screen. The reason I have written these posts, is because I am very afraid, that while the K-7 might have the capabilities to be a much better camera in the videography field, Pentax won't update the firmware just to drive the sales of their upcoming cameras.

Update: Also, I can easily believe, that K-7 cannot have 1080p and 24p modes, these could be easily restrained by limited hardware.
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