Yep, not to mention theres a bit of a debate in FPV circles as to the best FOV. Personally, I wouldn't think a camera taking 90 degrees having its image shoved into a 30 degree FOV would be very satisfactory, but maybe thats just me and my love of high FOV.
I'm wondering also why you'd bother with this over that Vuzix Wrap piece of junk for FPV... it just seems like a high quality version of the same thing.
For my FPV needs, I think i'll probably go buy a ST1080, and use a cheap converter to make it accept a composite signal. That, or just keep using my Z800's since they do the job...
Thu Apr 26, 2012 1:08 am
CyberVillain
Terrif-eying the Ladies!
Joined: Mon Jun 22, 2009 8:36 am Posts: 944 Location: Stockholm, Sweden
Most people dont like high FOV with FPV because they do not want to miss information in the edges, a missed branch or a leaf can be the death of your Quadrocopter
Fatshark is the most used FPV HMD and in their latest revision they lowered the FOV because of community feedback.
My plan is to mod my Sony HMZ to take its power of a 11.1v Lipo battery and then find a good, low latency composite>HDMI converter
Oh yeah, actually, now I remember. Thats one reason, a bigger one is OSD's. Most OSD's need legible text and that is easier to achieve on low resolution screens like Fatsharks by shrinking the FOV. I wonder however if you lose detail due to shrinking a 90 degree screen into a 30 degree display - at the minimum it is going to shrink everything down.
Quote:
Fatshark is the most used FPV HMD and in their latest revision they lowered the FOV because of community feedback.
Fatshark got a lot of community 'feedback' about the lowered FOV on the new series however. Many can handle it/like it, but a large amount prefer the immersion of the old series. I suspect this is along the utilitarian vs telepresence crowd, ie those who want to fly and film vs those who want to feel like they are actually flying. I don't think I could handle a 30 degree FOV after the 42 or 46 (cant remember which) of the Z800. No matter what, I still think 30 is way too low, even for readability and edge vision etc
A cheap/easy way to get your HMZ running off a 3S lipo, is to get a car cigarette lighter USB socket thing (actually, get several, they only cost a few $ off dealextreme etc). You can then solder leads to the terminals on it and put a JST or whatever at the other end, and plug the USB cable for your HMZ into it. That way you get a nice green LED 'on' light, a cheap power adapter etc, and dont have to modify anything on the HMZ. As you can guess, I came up with this one out of the 'I WILL BUILD IT NOW' mindset, scrounging for stuff around the house . I also made a custom USB cable that tapped into this 5V out, and use it to run the video converter (dealextreme again as well off a single USB cig lighter adapter.
My plan now is to build another complete circuit including batteries, and add a couple of switches to control it without plugging/unplugging. Then, if I have an issue, I'll be able to just switch quickly to the other circuit with a swap of a plug or two (normally, the 2nd receiver will be running on the main circuit to provide a diversity setup). Ideally, i'd have a spare or headset in the box as well in case my headset packed up.
Thu Apr 26, 2012 5:19 am
CyberVillain
Terrif-eying the Ladies!
Joined: Mon Jun 22, 2009 8:36 am Posts: 944 Location: Stockholm, Sweden
Well, that wont help then! Crazy, you mean it is powered by an actual wall wart? How primitive! I thought it would have used the same method as the Z800, using USB for the power.
What voltage does it use? If its 5V, you can just use the method I mentioned and make a USB to HMZ plug adapter. That way, you have a portable USB source, and can just use different cables to connect different devices.
Not even a wall wart, the regulator is internal. A few of us have opened ours and added a USB plug to there 5V goes into the main board.
have you been able to power it from a USB plug? Then the 15Watts that Sony states is wrong, that would fry the device you try to power it from since the USB standard is 500mA
Or did you power it off something not following the USB standard like a phone charger or something?
Don't have any news to share, but the Zeiss tracker does look pretty nice. Otherwise the specs aren't great, but probably acceptable if you need an all-in-one kit.
I'm looking for other solutions. I saw the TrackIr device but i need a 360 horizontal degree tracker. Is there some solution with gyroscopic tracker wich is not sold with glasses ? The Vuzix tracker look acceptable but the quality of the glasses seems a bit weak.
Well check around this forum, there are a few trackers people are using. For example from Hillcrest Labs or Sparkfun. I haven't tried these personally, and they may require hardware and software development in order to utilize them, not really a plug-and-play kit. The Vuzix 1200VR has a decent tracker on it, but the display quality is not great. However, based on the specs for the Cinemizer, they may be comparable (at least in terms of resolution and FOV). Unfortunately there is not really a perfect all-in-one solution available. Your best bet is to get something like the ST1080 and figure out how to do the tracking somehow yourself (again, there is info scattered around this forum). Hope that helps.
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Wed Jun 20, 2012 9:11 pm
brantlew
Petrif-Eyed
Joined: Sat Sep 17, 2011 9:23 pm Posts: 2037 Location: Irvine, CA
Like cyber said. Nothing really out-of-the-box but you can get some fairly easy results utilizing something like GlovePIE or FreePIE with supported trackers and game devices.
Hiya! Just bought the Cinemizer and didn't realize it didn't come with the head tracker - I've seen blogs reviewing it, but can't seem to find a link to purchase it anywhere (I searched these forums, but no dice).
Does anyone know if it's out and if so, where one can purchase the Zeiss headtracker attachment?
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