Wanted to borrow: JVC Emitter and Glasses for X7

Discussion in 'Projectors, Screens & Video Processors' started by Mr Incredible, Mar 4, 2013.

  1. Mr Incredible

    Mr Incredible
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    I'm just wondering whether anyone could help me to try the 3D option on my X7 PJ by lending me their emitter and glasses. I'd obviously pay any postage and package, and maybe a refundable deposit as a gesture of good faith. I'd hope my longevity, trading history and contribution to the forums shows I can be trusted!

    Thanks for your help!

    If a mod thinks needs to be in the Classifieds, may I ask it be moved to the right forum? Thanks.
     
  2. soupdragon

    soupdragon
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    I've a spare emitter you could borrow, pm me your details :)
     
  3. Mr Incredible

    Mr Incredible
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    Cheers! Appreciate that. I'l PM you.
     
  4. Tight Git

    Tight Git
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    Glad you're sorted, Mr I. :smashin:

    I would have offered mine, since they're virtually never used, but the emitter is bolted to the ceiling! :(
     
  5. Mr Incredible

    Mr Incredible
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    Still looking for a pair of glasses to try! :thumbsup:
     
  6. GaryB

    GaryB
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    If you don't get any other offers, I can probably arrange a pair next week.
     
  7. Mr Incredible

    Mr Incredible
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    Cheers bud!

    These responses are what makes AVF a great place to hang out. (too often in my case!)
     
  8. tomdanscar

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    Is it hanging on the Gc forum that's made you need the glasses ;):D
     
  9. Mr Incredible

    Mr Incredible
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    GC? 2nd home more like!
     
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    Just seen this , let me know if you get stuck for a pair :)
     
  11. soupdragon

    soupdragon
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    Hi Bob

    sent today via RMSD. I also put in a pair of Hama 3D glasses (they are xpands) and I prefer these to the JVC glasses because of the lens size. My screen is very big so the bigger lens helps with this.

    I'm doing up my room right now so if you can send them back so I have them for St Patricks weekend (hopefully my grand opening!)
     
  12. Mr Incredible

    Mr Incredible
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    I'll do my best! I had hoped I may have caught a sneak of the 3D on Sky F1 next weekend, but hey ho!, I really appreciate your help on this!

    :thumbsup:
     
  13. soupdragon

    soupdragon
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    I'll let you know how I get on with my new screen install as if I have a few delays then maybe I can wait a little longer - I'll let you know sooner to the time.
     
  14. Tight Git

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    Ah, the truth is out! :laugh:
     
  15. Mr Incredible

    Mr Incredible
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    Ha! I will try some other 3D material as well. Just need to find some!
     
  16. Mr Incredible

    Mr Incredible
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    Well, thanks to SoupD I hooked up his emitter and donned the Xpand glasses.

    Things I've learnt:-

    Boxee Box is 1.3 HDMI and does not support Full Frame 3D. :(

    Half Frame SBS and Half Frame TB need different refresh rates off the Boxee (60Hz and "24 FPS") for the X7 to work correctly even when manually selecting the 3D mode to be either SBS or TB.

    Once I got the correct refresh rate (and made sure the Boxee didn't auto adjust the rate to match the source) I was initially pleasantly surprised by the 3D effect.

    Having had the PJ on for 30 minutes before hand, I couldn't discern any crosstalk with the glasses, so that was good news.

    But.... the image was quite dark even with the lamp on high and aperture open. (lamp has done 580 hours). But I suppose one could get used to it.

    But.... I think the resolution on half frame 3D stuff doesn't really allow the HD ability of the PJ to shine through. It was possible to tell the difference in effective resolution between HF SBS/TB and "proper" 1080p HD material. It appeared to be slightly "pixelated" in its presentation.

    So, I now need to source a full frame 3D BD disc to play through my BD player which does support Full Frame 1080 3D. I think Avatar is the benchmark in this area! My BD player can stream files off my network, so may try that to see a "proper" full frame 1080 3D image!

    Watch this space!
     
  17. soupdragon

    soupdragon
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    Yes, frame packed 3d is the ticket. You lose about 75% of brightness in 3d which is the downside to the tech.
    One of the best movies for 3d pop out is a turtles tale, Sammy's adventure - an animation flick for kids but great fun.
     
  18. Mr Incredible

    Mr Incredible
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    I'll think I'll put a quick ad up for buying or borrowing Avatar 3D BD. Hopefully someone will respond to get it out in the post by Monday!

    I also found out that the 3D Sky option is only available if you have both movies and sports. I am not going to pay for that! So F1 3D is off the cards! :(
     
    Last edited: Mar 9, 2013
  19. Mr Incredible

    Mr Incredible
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    How do the JVCs perform with respect to image brightness?
     
  20. soupdragon

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    There is very little in it to be honest - they vary in tint more than brightness but sometimes polarisation of screen impacts.
    When using the glasses, tilt your head 90 degrees and if the picture gets brighter then screen polarisation is impacting.
     
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    Bob , I'm not keen on 3d , but I think it's too dark on the x7 for a my liking :)
     
  22. soupdragon

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    I did some measurements with my light meter tonight, which may help get an idea of how bright (or dull!) your 3D should be.
    I recently went to a 150ish" screen which is huge so I thought I would measure my light output to see what I'm getting.
    At high lamp, open aperture I'm getting 148 lux. This converts to 867 lumens, 13.7fl. At low lamp closed aperture I'm getting 228 lumens, 3.6fl - approx 1/4 of the brightness of high lamp, open aperture. Considering 3D is about 1/4 brightness of your normal image, you can roughly say that when you close the iris on your projector in low lamp mode in 2D, it should roughly equal the brightness of 3D in high lamp open aperture.
    You can do this check yourself by closing the aperture right down for 2D in low lamp and see how it looks as it should be the same as 3D with open aperture high lamp?

    (I'm assuming that X7 and X90 will have similar properties in terms of the aperture being the same and high lamp low lamp wattage being the same - I'm not aware of anything to say they aren't but can't say for sure)
    If its really dull in 2D doing this, then I'm guessing your lamp is waning - this isn't surprising as it happens very often unfortunately.
    I'm on 70hrs now so I can drive my big screen no problem but I might need a new bulb every 300-odd hrs if I want to keep brightness up. For 3D, I've got open aperture and high lamp and with 75% light loss I'm only getting 3.4 fl at full screen size. If I knock the screen size back down to 100 inches or so then I'll gain more brightness in 3D but in a well treated room, this 3.4fl looks ok - I would like more but thats the sacrifice - can't have it all!

    In summary, for brighter 3D, either change bulb regularly or reduce the screen size (maybe just set projector at min zoom for now?) to get brightness how you want it.
     
    Last edited: Mar 9, 2013
  23. Mr Incredible

    Mr Incredible
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    I'm on a 106" screen with 1.0 gain. I wonder if a high gain screen could help in the brightness department!

    We pulled the settee much closer to the screen and the 3D effect is more prominent/effective. Earlier this evening I went out to Asda and got Avatar 3D to try the full monty as it were. I more or less got used to the darkness of the image after a while, but it's when you take the glasses off that you realise how much brighter it is. Pity. I really can't make my mind up at the moment. Some moments are brilliant and others are OK. On top of which I think when you get immersed in a film's story line you tend to notice the effects less than when you've taken a critical look for the first time. One thing is for certain, is that half frame SBS/TB should be confined to the Recycle bin! And on that basis I don't think I'd be missing out on the F1 3D on Sky, which AFAICT is half frame SBS.

    I'll try it out a bit longer and see how I get on. I must admit that after watching Avatar for a while tonight, my eyes feel a little strained as if they've been given a good work out. Has anyone else experienced any eye strain?
     
  24. Mr Incredible

    Mr Incredible
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    I'm tending to think that myself at the moment.
     
  25. Tight Git

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    Very much so, along with nausia and headaches! :mad:

    That's why the TG household give 3D the big :thumbsdow.

    At least you haven't spent an extra £750 getting equipped... :suicide:
     
  26. soupdragon

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    I get a little eye strain too, quite mild though. My previous benq projector was perfect for 3d- high brightness, zero ghosting and really solid. You could watch it all day in 3d with no eye strain.

    I find my x90 a lot better in 3d than my x3 but that's possibly due to a new bulb in my x90. A lot of people will find 3d unwatchable after 4 or 500 hrs from what I've read, but I never got that far on my x3 so not speaking from personal experience.
     
  27. Mr Incredible

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    Well, I have to report that Elastogirl got a slight headache after about 20 minutes of watching of 3D. So all things considered we're going to give 3D @ home a miss for now. We so much enjoy the crispness and brightness of the X7 on a 106" screen, that I think 3D's novelty would wear off in short order!

    I'll get it all packed up and ready to be posted back. I really appreciated the generous gesture by Soupdragon (and others who chipped in as well) and it afforded me to opportunity to appraise 3D without a large outlay. :thumbsup: I'll get it in the post tomorrow. I'll PM you to re-confirm the return address! Cheers.
     
  28. soupdragon

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    Cheers, return sent :thumbsup:
     
  29. signs

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    That's exactly how I feel mate .
     
  30. toddy28

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    You need to watch more 3d to get accustomed to it and you won't get the headaches

    As the 3d tech is tricking your brain in to seeing a 3d image it knows something is not right and takes some getting used to

    And as its new your eyes are darting around a lot and you have to watch 3d as of its real life and focus on the bit your watching not just take in the whole screen like you do in 2d

    Just my experience and hope it helps , I am a big 3d fan and have watched a hell of a lot of 3d films , over 80 i would say ;)
     

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