WSR JVC RS-1 Review Discussion - AVS Forum
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post #1 of 103 Old 03-26-2007, 11:51 AM - Thread Starter
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My JVC RS-1 review will be posted on the Widescreen Review subscriber's website at noon Pacific time (a few minutes from now). Let's use this thread for questions and discussion. If you have questions for me please keep them short, as in one question per post so that I can keep up. I'll hang out here for several hours so there should be plenty of time to address any questions. Maybe there will be no questions, since we have already been discussing the RS-1 for months?

Please remember that the review is copyrighted by Widescreen Review. It is being made available to WSR subscribers on the website 3 weeks before the printed version of WSR is mailed out because of the high interest in this product. Don't repost the review anywhere or I'm certain my reviews won't get posted early in the future. Thanks.

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post #2 of 103 Old 03-26-2007, 12:15 PM
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Another great WSR review Greg. What is you opinion on the "overall" image improvement over other recent Lcos FP units such as the Sony VW100 and VW50?

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post #3 of 103 Old 03-26-2007, 12:16 PM - Thread Starter
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If you downloaded the review prior to 12:15 pm (i.e. in the first 15 minutes) please download another copy. An older version with some typo's (zoom ratio, lens shift) in the Set Up section was posted initially. The final version is now posted.

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post #4 of 103 Old 03-26-2007, 12:18 PM
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Thanks Greg for the excellent review!

I have a quick question. How do you feel about the color accuracy and shading uniformity vs. the Meridian MF-1 (which I know is based on the professional HD-10K) and which becomes more important vs. contrast when much of the contrast is lost in anything but a completely back room?

Money aside for a moment please. We have already purchased this unit. The thing that stands out to me is your repeated referral to overly saturated greens, which can drive me nuts.

Thanks!
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post #5 of 103 Old 03-26-2007, 12:21 PM - Thread Starter
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Quote:
Originally Posted by BarbaraStreisand View Post

Another great WSR review Greg. What is you opinion on the "overall" image improvement over other recent Lcos FP units such as the Sony VW100 and VW50?

I think the amazing improvement in native contrast ratio, and consequently the elimination of dynamic iris artifacts, and the significantly better sharpness are very important and well worth the price difference.

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post #6 of 103 Old 03-26-2007, 12:21 PM
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Greg, the photo of the rear connector seems to indicate that you could feed 4-wire RGB (with a separate combined sync) by using the composite RCA jack as a 4th jack, but your review mentions only support for Sync-On-Green. Can you clarify?

Thanks,

Andy K.
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post #7 of 103 Old 03-26-2007, 12:26 PM - Thread Starter
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Quote:
Originally Posted by cjmac97 View Post

How do you feel about the color accuracy and shading uniformity vs. the Meridian MF-1 (which I know is based on the professional HD-10K) and which becomes more important vs. contrast when much of the contrast is lost in anything but a completely back room?

I think it's a personal preference issue whether contrast or color accuracy is more important to you. They are both very important to me. But if I had to choose, I would take the better contrast ratio in that comparison because of the magnitude of the difference. The shading accuracy is apparently going to vary significantly from RS1 to RS1, based on the reports in this forum. Mine was pretty good.

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post #8 of 103 Old 03-26-2007, 12:28 PM
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Thanks Greg...

The Meridian is being hung as we speak (had to decide about two months ago on equipment). I'm looking forward to it. I will certainly be recommending the RS-1 to anybody that asks considering its fantastic price point.
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post #9 of 103 Old 03-26-2007, 12:29 PM
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Greg
Thanks for the review. What player did you use to feed DVD to the RS1?
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post #10 of 103 Old 03-26-2007, 12:29 PM
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Has JVC said anything about what the firmware update will entail?

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post #11 of 103 Old 03-26-2007, 12:30 PM - Thread Starter
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Quote:
Originally Posted by kromkamp View Post

Greg, the photo of the rear connector seems to indicate that you could feed 4-wire RGB (with a separate combined sync) by using the composite RCA jack as a 4th jack, but your review mentions only support for Sync-On-Green. Can you clarify?

Thanks,

Andy K.

Yes, it will take a separate composite sync input, i.e. SCART compatible. It mentioned that in the menu section.

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post #12 of 103 Old 03-26-2007, 12:33 PM - Thread Starter
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Quote:
Originally Posted by Bulldogger View Post

Has JVC said anything about what the firmware update will entail?

No. I don't have new information on a firmware upgrade. The last version I looked at still had issues to be fixed.

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post #13 of 103 Old 03-26-2007, 12:34 PM
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Great review Greg!

Do you have any idea what the (covered) connector at the top left of the back panel is for?

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post #14 of 103 Old 03-26-2007, 12:35 PM
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Greg,

Thanks for the Review,

Was the long thorw was bright enough for watching in a Light controlled room,

The reason I ask is I am planning on to get one by the end of the year an the minimum throw distance is 22.5' (cannot be ceiling mounted due to 7' feet height).

Thanks.
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post #15 of 103 Old 03-26-2007, 12:35 PM
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Quote:
Originally Posted by gregr View Post

No. I don't have new information on a firmware upgrade. The last version I looked at still had issues to be fixed.

So you did look at multiple firmware versions? Do you know if firmware upgrade is an end-user operation via RS232 or did they have to send you a different projector with the newer firmware?

Thanks for a great review, by the way!

-Dave
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post #16 of 103 Old 03-26-2007, 12:38 PM
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Hi Greg,

Thanks for the review. You obtained very good to excellent grayscale results using 75% grey. Just curious if the 75% field is what you typical use to circle around or it just happened that calibrating to 0dE at this field gave the overall best result?


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post #17 of 103 Old 03-26-2007, 12:38 PM - Thread Starter
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Quote:
Originally Posted by mrlittlejeans View Post

Do you have any idea what the (covered) connector at the top left of the back panel is for?

No, sorry I don't.

Greg Rogers
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post #18 of 103 Old 03-26-2007, 12:40 PM
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Logged into issue 119 and found only a Cushman Panasonic projector review. Downloaded it and a few other articles (~3:35 pm ET 3/26), but no RS1 review. ?? -- John
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post #19 of 103 Old 03-26-2007, 12:41 PM
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Excellent review! Does the quote below fully explain the color shifting problem that has been discussed recently? Fwiw, I tried your tip of focusing for a minimum of red, but it was always as large or larger than the other colors so once converged I see just a tad of red fringing either above or below a converted line (depending on how the pixel adjustment is performed). The weird thing about the color shifting is that I sometimes see green in addition to red/purple though.

"But the red focus was not as good as blue and green, which resulted in..."


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post #20 of 103 Old 03-26-2007, 12:41 PM - Thread Starter
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Quote:
Originally Posted by Hugh2 View Post

Hi Greg,

Thanks for the review. You obtained very good to excellent grayscale results using 75% grey. Just curious if the 75% field is what you typical use to circle around or it just happened that calibrating to 0dE at this field gave the overall best result?

I normally set a 70, 75, or 80% gray window to D65, whichever provides the best overall grayscale.

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post #21 of 103 Old 03-26-2007, 12:43 PM - Thread Starter
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Quote:
Originally Posted by sdavid21 View Post

Was the long thorw was bright enough for watching in a Light controlled room,

Depends on your screen size and what you consider bright enough.

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post #22 of 103 Old 03-26-2007, 12:44 PM
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In the review, you said you suggested to JVC they provide the blanking options for SD that exist for HD and correct the overscan. Any feeling of what their reaction to that was?

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post #23 of 103 Old 03-26-2007, 12:44 PM
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"There was no fixed-pattern banding, which was a significant problem for LCoS projectors in the past."

So the unit that you reviewed doesn't have the full field greyscale ramp streaking problem? I took some photos of this problem and posted them here:

http://www.avsforum.com/avs-vb/showt...&#post10126280


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post #24 of 103 Old 03-26-2007, 12:46 PM
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Greg,

The RS1 is already stretching my budget, so I'm wondering how necessary you think it is to also purchase an external VP for this projector for the average viewer. I have been a bit disappointed reading posts indicating a noticeable improvement in picture quality using an external VP. If the RS2 is likely to need an external scaler less than the RS1, I am tempted to wait for it. Any thoughts on this? Thanks in advance for your reply.
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post #25 of 103 Old 03-26-2007, 12:46 PM
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Quote:
Originally Posted by Mark Petersen View Post

"There was no fixed-pattern banding, which was a significant problem for LCoS projectors in the past."

So the unit that you reviewed doesn't have the full field greyscale ramp streaking problem? I took some photos of this problem and posted them here:
http://www.avsforum.com/avs-vb/showt...&#post10126280

The link doesn't work for me.

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post #26 of 103 Old 03-26-2007, 12:47 PM
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Greg,

Thanks for the review.

Do you think the RS1's electronic masking feature would enable me to use it on a 1.85:1 screen, where I could mask some of the top/and bottom to fit my screen (and still use the full width of my screen)?
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post #27 of 103 Old 03-26-2007, 12:47 PM - Thread Starter
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Quote:
Originally Posted by Mark Petersen View Post

Does the quote below fully explain the color shifting problem that has been discussed recently? Fwiw, I tried your tip of focusing for a minimum of red, but it was always as large or larger than the other colors so once converged I see just a tad of red fringing either above or below a converted line (depending on how the pixel adjustment is performed). The weird thing about the color shifting is that I sometimes see green in addition to red/purple though...

Yes, that quote refers to the issue as well as comments in the 1080i/p Pixel Perfection section about coloration on the burst and other patterns. I said more about it in the other thread you mentioned after it was brought up there.

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post #28 of 103 Old 03-26-2007, 12:48 PM
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"JVC redesigned its D-ILA panels using new liquid crystal
materials and a new orientation technology to reduce stray light
and light loss in the liquid crystal layer, and reduced the gaps
between pixels from 3.2 microns to 2.3 microns."

Just a small correction. The gap between pixels is 0.5 microns and the LC layer thickness inside of a pixel is 2.3 microns.


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post #29 of 103 Old 03-26-2007, 12:51 PM - Thread Starter
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Quote:
Originally Posted by Ian_Currie View Post

Greg,

Thanks for the review.

Do you think the RS1's electronic masking feature would enable me to use it on a 1.85:1 screen, where I could mask some of the top/and bottom to fit my screen (and still use the full width of my screen)?

Seems like a good way to use it, but remember masking is only available for HD input signals. So you would need to use a separate processor to upconvert SD signals to still use the masking.

Greg Rogers
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post #30 of 103 Old 03-26-2007, 12:51 PM
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Greg, here is a question, can I trade RS-1s with you?

I think yours has better shading and better contrast but mine has better black uniformity. I wouldn't be surprised if higher contrast and reduced black uniformity go hand in hand with the RS1.


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