Official Planar PD8150 Owners Thread - Page 7 - AVS Forum
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post #181 of 201 Old 04-09-2014, 05:43 AM
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Yah, I'm aware of 0.003 spec. I usually do a trick with the cap of D3 when I want to take lens readings. Becase D3 doesn't take readings when the cap is on, you take it off but you don't move it out of the light's way. The cap should still be between the PJ and D3's 'eye'. I usually place the colorimeter close enough to reach 300 cd/m2 at 100% white. This way I can be sure that it gives me accurate readings all the way up to black on high contrast projectors. smile.gif

I also use an "offset" for target color temperature if I use this method. But that's a different story.
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post #182 of 201 Old 04-09-2014, 11:50 AM
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So here're the measurements: http://yadi.sk/d/XG4yVmZWM95ug (it's cd/m2). It's still around what I've measured previously. So I get number close to what Kris Deering got when he first reviewed PD8150 (on the old firmware). It's not close to what cine4home measured or what Kris got later on. Is it true there were different versions of PD8150 and that there were an optical path upgrade somewhere down the road?
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post #183 of 201 Old 04-09-2014, 12:00 PM
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I think Kris's second unit had an "issue" with the DI where it was closing more than others which is why he was getting such high numbers the second time through. There was never any kind of major upgrade to the unit that would make for a several thousand number difference in contrast. The fixed aperture was the only "update" that I'm aware of and that was implemented VERY early on. Bob Williams told me there were some minor updates to the LS-5, but as you can see from those reviews, there also wasn't some major upgrade to the light engine that made a crazy difference in contrast.

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post #184 of 201 Old 04-09-2014, 12:19 PM
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post #185 of 201 Old 04-09-2014, 05:49 PM
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Quote:
Originally Posted by Seegs108 View Post

I think Kris's second unit had an "issue" with the DI where it was closing more than others which is why he was getting such high numbers the second time through. There was never any kind of major upgrade to the unit that would make for a several thousand number difference in contrast. The fixed aperture was the only "update" that I'm aware of and that was implemented VERY early on. Bob Williams told me there were some minor updates to the LS-5, but as you can see from those reviews, there also wasn't some major upgrade to the light engine that made a crazy difference in contrast.

I thought there was a firmware update that increased the dynamic contrast, probably a slightly more aggressive iris implementation or something.

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post #186 of 201 Old 04-09-2014, 05:54 PM
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There was only one firmware update for the PD8150 and it lists:
Quote:
REVISION HISTORY
MP18 (6/18/08)


● Corrected the ability to adjust for crushing black and clipping whites for digital component
video signals.
● Corrected cadence reconstruction for 60Hz sources when the projector is set to 48Hz.
● Fixed aspect ratio issues during PIP functions.
● Corrected some RS232 command functions
● Improved ability to automatically detect appropriate color space.
● Numerous cosmetic improvements to the OSD.
● Numerous compatibility improvements for analog sources.

There wasn't an update to the DI software or algorithms as far as I'm aware unless it occurred before the projectors went retail. There may have been changes to pre-production samples that some reviewers got but as far as retail/production units go, that was the only software change put out.

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post #187 of 201 Old 04-09-2014, 07:19 PM
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that's the update I installed as soon as I got the 8130. Now the black level looks at least as good as the 4910 with the clamped iris... biggrin.gif

Planar_8130-2.jpg

I would not trade this primo condition 8130 w/ 90 hours for these busted 8150's I keep reading about.. j/k cool.gif

now I'm curious to measure the contrast with the T10 after swapping the lenses. I'll post the #'s later.
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post #188 of 201 Old 04-09-2014, 07:21 PM
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Imagine how much better it would look with a DC4 DMD. tongue.gif

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post #189 of 201 Old 04-09-2014, 07:22 PM
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help me find one that isn't broken !! This projector has grown on me quite a bit, I can see why it was so popular in it's day.
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post #190 of 201 Old 04-09-2014, 07:41 PM
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I may have found one wink.gif

And that's why I defended my position for owning the PD8150 instead of a newer JVC for so long. Other than absolute contrast they are fantastic units. tongue.gif

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post #191 of 201 Old 04-09-2014, 08:30 PM
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Even the busted ones are awesome..
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post #192 of 201 Old 04-09-2014, 08:50 PM
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Quote:
Originally Posted by zombie10k View Post

help me find one that isn't broken !! This projector has grown on me quite a bit, I can see why it was so popular in it's day.

You must drink energy drinks all day or something to get all this done. I'm going to be in your part of the world tomorrow VERY briefly, as I'm flying to DC tomorrow for a 2-hour layaway before I then hop on a little commuter plane to some ho-bunk town in upstate NY, wow I don't like the DC airport. Long story, but have to do some business stuff in the middle of nowhere. I have some time to kill but I'll be in the middle of nowhere waiting on this business thing, so I guess I'm just going to skip rocks off the front of TV's at the local electronics store (beats skipping rocks in the lake).

What fun, 8 hours at the airport and watching movies on a laptop just doesn't seem to cut it anymore.
I should have brought me a giant battery and a projector on the little commuter plane :smile.gif

Why did I post this and what does this have to do with anything, no idea (Boredom I suppose)...


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post #193 of 201 Old 04-10-2014, 03:04 AM
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Does 150$ look like too much for fixing horizontal lens shift (manufacturing of metal gears)?
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post #194 of 201 Old 04-10-2014, 03:38 AM
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Quote:
Originally Posted by zombie10k View Post

that's the update I installed as soon as I got the 8130. Now the black level looks at least as good as the 4910 with the clamped iris... biggrin.gif

Are you saying that you found a way to keep the iris of the Planar closed, clamped??? Or I got it wrong? I mean I'd like to use my 8150 with the DB off but with the iris full closed and not full open as it is when the DB is OFF. I mean as if it had a manual iris.

It looks like impossible from what I'm reading here until I read your post...
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post #195 of 201 Old 04-10-2014, 04:19 AM
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Kukulcan, are you serious? smile.gif
Quote:
Originally Posted by zombie10k View Post

Now the black level looks at least as good as the 4910 with the clamped iris... biggrin.gif
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post #196 of 201 Old 04-10-2014, 04:21 AM
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Originally Posted by Elix View Post

Kukulcan, are you serious? smile.gif

What do you mean? Does it sound strange to you that I prefer the DB OFF? Is it that?
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post #197 of 201 Old 04-10-2014, 04:24 AM
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It's not that. JVC 4910 has around 60000:1 native contrast with iris clamped down (600000:1 with Dynamic Iris). Now do you believe a DLP projector could pull that off? smile.gif Zombie has obviously been ironic.
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post #198 of 201 Old 04-10-2014, 04:30 AM
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wait wait!!! eek.gif I didn't catch he was referring to a JVC (and joking of course).

I'm in Italy and here in Europe JVCs have different names, X900R I think...

I completely misinterpreted his post, thinking he had successfully clamped Planar's iris...
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post #199 of 201 Old 04-10-2014, 05:05 AM
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Quote:
Originally Posted by Seegs108 View Post

There was only one firmware update for the PD8150 and it lists:
There wasn't an update to the DI software or algorithms as far as I'm aware unless it occurred before the projectors went retail. There may have been changes to pre-production samples that some reviewers got but as far as retail/production units go, that was the only software change put out.

I'm almost positive that the firmware update improved contrast. I remember when it came out there was a bit of "discussion" about it not meeting it's 15k:1 spec, then there was a firmware update. I can't actually find a 100% iron clad reference, but I remember lots of comments like this:
http://www.avsforum.com/t/1188127/jvc-rs25-sim2-d80e-or-planar-8150/30#post_17373519
http://www.avsforum.com/t/1122246/planar-8150-follow-up-impressions/210#post_16325144

Tom's got measurements here:
http://www.avsforum.com/t/1122246/planar-8150-follow-up-impressions/210#post_16324507

Actually now that I think about it, I think that was basically the whole impetus for this thread:
http://www.avsforum.com/t/1122246/planar-8150-follow-up-impressions#post_15867713
Kris got a chance to see a newer 8150 with the new firmware after the initial review:
Quote:
Originally Posted by Kris Deering 
Hey everyone. I had the chance to look at another 8150 today and I must say I was even more impressed this time around than when I did my review last year. Planar has addressed the issues with clipping and contrast has been improved.

See what an anamorphoscopic lens can do, see movies the way they were meant to be seen
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post #200 of 201 Old 04-10-2014, 05:05 AM
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Yeah, they have confusing model numbers for different markets. How RS49 relates to X-500, RS57 relates to X-700 and RS-67 relates to X-900 is above me.
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post #201 of 201 Old 05-19-2014, 08:10 AM
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