Official JVC - 20LTD - RS640 (x990/x9900) - RS540 (X790/x7900) - Owners Thread - Page 376 - AVS Forum | Home Theater Discussions And Reviews
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post #11251 of 12231 Old 03-13-2019, 06:25 AM
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Originally Posted by Archaea View Post
I take it you’ve seen both. What are your thoughts. (Recognizing different rooms, screen sizes, conditions etc)
Dave's room blows mine out of the water, but I would not hesitate to say our projectors are, at the least, equal.

I'm pretty sure the first time I was in his room after he installed the JVC, we were still viewing 1080p due to a limitation of JRiver or whatnot, but last summer we watched Gladiator at The Savoy, and comparing that experience to everything I've viewed in my room, I'd say they're equal, if not mine getting a bit of an edge due to the newer version of eShift.

On another note, I also came from a Panasonic AE8000, and I can't say enough about the enormous improvement going to the JVC. And the Panasonic was no slouch - I had just replaced the bulb about 350 hours before my upgrade and it had been calibrated by Jeff Meier.

My two cents is go for it. It's absolutely worth it.
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post #11252 of 12231 Old 03-13-2019, 06:46 AM
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Originally Posted by coxy2416 View Post
I have the X790 and it is a great projector however I am not sure you are going to see a night and day difference between your RS600 and the RS540. Are they not both eShift projectors? I think the 540 has double the contrast and a newer eShift mechanism but I am not sure there is much else?
The RS600 has slightly higher contrast - 150,000 vs 130,000 of the RS540 (which is the same projector as the x790).
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post #11253 of 12231 Old 03-13-2019, 07:15 AM
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Originally Posted by Archaea View Post
I've seen a JVC RS600 in my room and was blown away by it. Is it fair to say a RS540 would look as good as RS600? I'm tottering between upgrading now, or waiting for HDMI 2.1 and true 4K in a quality projector like one of these JVCs coming down to about $3K pricepoint. I'm guessing that's about 2 years out.
I think I would prefer the RS600 over the RS540 if you can tone map your HDR and you don't play games. The RS600 should have better contrast. The RS540 has better low lag and uses the dynamic iris during HDR. In my opinion, the dynamic iris operation on the RS500 / RS600 is a lot more unobtrusive than the RS540 / RS640 so you may notice pumping you didn't notice before.
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post #11254 of 12231 Old 03-13-2019, 07:19 AM
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I see so many people weighing the pros and cons of different projectors and Im thinking, "just get an RS540 and don't look back!"
Right on

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Doubtful isn't it? I mean, these are pretty much on closeout sale I thought...
Nope, not on closeout yet in the USA.....
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post #11255 of 12231 Old 03-13-2019, 07:53 AM
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Quote:
Originally Posted by Archaea View Post
I've seen a JVC RS600 in my room and was blown away by it. Is it fair to say a RS540 would look as good as RS600? I'm tottering between upgrading now, or waiting for HDMI 2.1 and true 4K in a quality projector like one of these JVCs coming down to about $3K pricepoint. I'm guessing that's about 2 years out.
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I think I would prefer the RS600 over the RS540 if you can tone map your HDR and you don't play games. The RS600 should have better contrast. The RS540 has better low lag and uses the dynamic iris during HDR. In my opinion, the dynamic iris operation on the RS500 / RS600 is a lot more unobtrusive than the RS540 / RS640 so you may notice pumping you didn't notice before.
I would agree that you may notice some pumping on the 540. I certainly notice the pumping in my setup and do not use the DI. However others do not have an issue with it and use the DI. It will come down to your setup and how susceptible you are to seeing the pumping.
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post #11256 of 12231 Old 03-13-2019, 08:01 AM
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Originally Posted by Cleveland Plasma View Post
Nope, not on closeout yet in the USA.....
The announcement from JVC when the native 4K projectors came out also stated that the RS540/X790 will be the only e-shift model to continue on, at a much reduced MSRP. Not sure where the other comment came from (that they will only continue until the existing parts run out); manufacturers typically would not announce a new MSRP for closeout products, even though the street prices will drop.

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post #11257 of 12231 Old 03-13-2019, 09:17 AM
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Originally Posted by ColoFatherof3 View Post
This advice really helped me, THANK YOU!

I was set at "auto2" and was seeing some very distracting irus pumping (picuture fading between brightness levels on darker scences). It was happening in several movies using both Blu-Rays and UHD 4Ks.

Last night it happened again, so I stopped the movie, reset the iris from "auto2" to "-4" and all the scenes that used to go dark/light/dark/light/etc stopped doing that. No idea what I'm losing by not using the dynamic iris, but I don't care. This is SO MUCH BETTER!

thank you for this great advice!

My next step is to purchase a cheap light meter so I can figure out what setting (-4 or something different) is best for my setup.
Now that I have my cheap $30 light meter, where can I find an "all white" test pattern to do this test with? I found the article that describes how to measure and compute foot lumens, but I'm not sure what test pattern to use or what is a good foot lumen measurement.

My "HD Basics" blu-ray doesn't seem to have any "all white" patterns. Can I just measure from a pattern that uses a white bar and put the light meter in front of that bar?

Thanks for any help with this.
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post #11258 of 12231 Old 03-13-2019, 10:43 AM
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Originally Posted by ColoFatherof3 View Post
Now that I have my cheap $30 light meter, where can I find an "all white" test pattern to do this test with? I found the article that describes how to measure and compute foot lumens, but I'm not sure what test pattern to use or what is a good foot lumen measurement.

My "HD Basics" blu-ray doesn't seem to have any "all white" patterns. Can I just measure from a pattern that uses a white bar and put the light meter in front of that bar?

Thanks for any help with this.

http://www.walvisions.com/PattPages/...0pc_white.html


http://www.webprojectorcalculator.com/ has a nit to ft L calculator.
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post #11259 of 12231 Old 03-13-2019, 10:47 AM
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Originally Posted by Dominic Chan View Post
The announcement from JVC when the native 4K projectors came out also stated that the RS540/X790 will be the only e-shift model to continue on, at a much reduced MSRP. Not sure where the other comment came from (that they will only continue until the existing parts run out); manufacturers typically would not announce a new MSRP for closeout products, even though the street prices will drop.
There was a post from a prominent dealer on the "other other forum" JVC RS440 / 540 / 640 thread saying they're going away soon.
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post #11260 of 12231 Old 03-13-2019, 01:10 PM
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Originally Posted by Dominic Chan View Post
The RS600 has slightly higher contrast - 150,000 vs 130,000 of the RS540 (which is the same projector as the x790).
In October I sold my 520 to preorder the N7 but when the pre-orders got delayed I went out and bought a b-stock 640 to hold me off during the delay.
Then when the N7 got delayed again I canceled my preorder and stayed with the 640..

There is about a 15% difference between 520 and 640 but the biggest difference is between the 400 series and the 500 series.. that leap is huge..



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post #11261 of 12231 Old 03-13-2019, 03:39 PM
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Can anyone tell me if the 100% White pattern on AVSHD709 can be used to also set HDR light level?
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post #11262 of 12231 Old 03-13-2019, 04:28 PM
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Originally Posted by shazza6887 View Post
Can anyone tell me if the 100% White pattern on AVSHD709 can be used to also set HDR light level?
Yes, they are the same (equivalent to 8-bit code level 235). In most cases one would not “set” the HDR white level, as the peak white is supposed to be 4000 (or even 10,000) nits, but you may want to measure it to select the appropriate curve.

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post #11263 of 12231 Old 03-14-2019, 08:06 AM
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Yes, they are the same (equivalent to 8-bit code level 235). In most cases one would not “set” the HDR white level, as the peak white is supposed to be 4000 (or even 10,000) nits, but you may want to measure it to select the appropriate curve.



What i meant to say was when adjusting IRIS to obtain desired Ft lumen range, can you use the same pattern for setting SDR and HDR lumenience?
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post #11264 of 12231 Old 03-14-2019, 08:36 AM
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What i meant to say was when adjusting IRIS to obtain desired Ft lumen range, can you use the same pattern for setting SDR and HDR lumenience?
Yes, that was what I was saying as well, i.e., the same 100% pattern can be used for SDR and HDR.

My second point was that: for SDR one would use the iris to set white to 50 nits (about 15 FtL), but for HDR personally I would not reduce the iris, as there’s not enough to start with. There are those, however, who would trade lumens for contrast. It’s a matter of preference; both are compromises.
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post #11265 of 12231 Old 03-14-2019, 11:03 AM
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Congrats on the projector, sounds like you received a great sample as these projectors can very alot.

The sound you are hearing is normal and I believe it is the eShift engaging and disengaging.
Is there really that much variation on these? I'm considering an x790, but I hate to play the lottery with a product that has such a (seemingly earned) price premium.
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post #11266 of 12231 Old 03-14-2019, 11:15 AM
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Is there really that much variation on these? I'm considering an x790, but I hate to play the lottery with a product that has such a (seemingly earned) price premium.
I'm in the same boat, Really want a true 4k but at the current price the RS540/X790 seems like a great deal. Whats the conciseness from recent buyers on the quality of the recent projectors. Hows the eshift noise or is it still just "luck of the draw" with that another issues?
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post #11267 of 12231 Old 03-14-2019, 11:21 AM
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Originally Posted by jtorrence3 View Post
Is there really that much variation on these? I'm considering an x790, but I hate to play the lottery with a product that has such a (seemingly earned) price premium.
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Originally Posted by mactoast View Post
I'm in the same boat, Really want a true 4k but at the current price the RS540/X790 seems like a great deal. Whats the conciseness from recent buyers on the quality of the recent projectors. Hows the eshift noise or is it still just "luck of the draw" with that another issues?
Let me start off by saying that I believe the X790 is one of the best projectors for the price on the market right now. If it is in your price point then I would say go for it! If you have a little bit more to spend then I would probably go with a native 4K projector as that is what I would do if I was shopping for a projector today.

These projectors can vary from unit to unit but most things are not noticeable in real world content. These are the only things that have varied between the units that I have had that you may notice:

1) eShift buzz does vary and can be quiet or loud as I have had both. My first projector was dead silent and I could hardly tell the eShift was engaged. My second projector was loud but would quiet down after about 15 mins. I am back to a quiet eShift on my third projector.

2) Bright corners on a black screen. My first 2 projectors had these but it honestly wasn't that bad and didn't even notice it until I saw the third projector that had no bright corners.

Some projectors will be sharper than others but it really isn't that noticeable when watching content. Hope that helps!
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post #11268 of 12231 Old 03-14-2019, 11:50 AM
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Coxy2416, thanks that does help a lot. In an ideal world you wouldn't want to see that variation, but in the real world I think those sound reasonable. Buzz could be annoying depending on the character of it. I'd be more concerned if there were significant variations on focus or color, though.

Now possibly to find a good dealer with stock or reasonable lead times and also fair pricing. That unicorn must exist somewhere out there haha
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post #11269 of 12231 Old 03-14-2019, 12:35 PM
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Originally Posted by jtorrence3 View Post
Coxy2416, thanks that does help a lot. In an ideal world you wouldn't want to see that variation, but in the real world I think those sound reasonable. Buzz could be annoying depending on the character of it. I'd be more concerned if there were significant variations on focus or color, though.

Now possibly to find a good dealer with stock or reasonable lead times and also fair pricing. That unicorn must exist somewhere out there haha
I got lucky on the X790 I have now. I am not sure it could get any better!

All the best in your search!

One thing to keep in mind is the Dynamic Iris. I find it works great for SDR material but find it distracting on HDR material as I notice a lot of pumping and for that reason I do not use it. Others use the DI without an issue so it will just come down to your setup and if you notice it or not.

Last edited by coxy2416; 03-14-2019 at 12:39 PM.
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post #11270 of 12231 Old 03-14-2019, 04:20 PM
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Originally Posted by Dominic Chan View Post
Yes, that was what I was saying as well, i.e., the same 100% pattern can be used for SDR and HDR.

My second point was that: for SDR one would use the iris to set white to 50 nits (about 15 FtL), but for HDR personally I would not reduce the iris, as there’s not enough to start with. There are those, however, who would trade lumens for contrast. It’s a matter of preference; both are compromises.

Thanks mate, so pretty much for HDR you want max brightness anyway? and it will fall down to own prefreances for low/high lamp if you are getting at least 30 ftl noise etc?
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post #11271 of 12231 Old 03-14-2019, 04:36 PM
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Originally Posted by shazza6887 View Post
Thanks mate, so pretty much for HDR you want max brightness anyway? and it will fall down to own prefreances for low/high lamp if you are getting at least 30 ftl noise etc?
I don't buy this "max brightness" argument. HDR has dark scenes. And any dynamic iris would be all the way open if the scene called for max brightness anyway.
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post #11272 of 12231 Old 03-14-2019, 04:49 PM
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Thanks mate, so pretty much for HDR you want max brightness anyway? and it will fall down to own prefreances for low/high lamp if you are getting at least 30 ftl noise etc?
With SDR everything is relative to the 100% point. If you set 100% to 100 nits using the iris, 50% will be about 21 nits (assuming gamma 2.2).

OTOH, HDR EOTF (PQ curve, which replaces gamma) is absolute, with the 50% point at 20~25 nits (for projectors). If you use the iris to reduce the peak it will throw off all the lower points. Thus you should not set the HDR 100% to an arbitrary level, without first looking at the entire EOTF.
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post #11273 of 12231 Old 03-14-2019, 05:55 PM
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So maybe the last few days my rs540u has been randomly making a noise for a few seconds like when you hit the hid button but the lens not closing and nothing happens to the picture. Any ideas?

The remote is on the end table when it has happened. The last few times it happened we couldn't figure out what it was because the movie content we were watching. Then I heard it just a few seconds ago while laying on the floor watching a hulu show. Its definitely the projector.

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post #11274 of 12231 Old 03-14-2019, 08:07 PM
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Well, count me in as a JVC convert. I’m more of a cinephile than a videophile, and the only reason I upgraded from my Sony HW55ES was because I have a 2.35 screen (CIH setup) and I got tired of running back to the projector whenever I wanted to change the aspect ratio (I also HATED the crappy dials for adjusting the lens). So all I asked from the RS540 was lens memory. I honestly thought the Sony’s picture was as good as it could get. Boy, was I wrong.

The JVC is much darker, quieter, and sharper (with Eshift disabled!). I will probably never play with HDR and I think 1080p is “good enough”, but I still feel like this projector was a huge upgrade. So far I’ve watched...

John Wick - amazing shadow detail on the umbrellas at the funeral
Sully - pretty great demo of black and white together
Blue is the Warmest Color - flesh tones are perfect
The Ornithologist - wow, I felt like I was outside

It’s a great time for home theater, and a great time to be alive! We have so much excellent content. Streaming is something I couldn’t have dreamed of 25 years ago, and now we have streaming video that looks excellent on a 120” screen. Wow.
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post #11275 of 12231 Old 03-14-2019, 08:52 PM
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Right on

Nope, not on closeout yet in the USA.....
I just got my new RS540U setup last Saturday. Been thinking about buying for more than a year. Got (last one they had) for a great deal from Craig Peer at AVS Science, and I'm loving it!!! Coming from an Epson 5030UB and there is no comparison. Re-watching
1080P movies (upscaled to 4k) by MadVR on my HTPC. Put 27 hours on her in three days! HDR to SDR tone mapping with MadVR is to die for!!

Here are my observations:

1) Black levels are what makes this projector sooo... special.
2) Colors are much better than Epson.
3) 4K eshift makes for a 3D look. Wow!!!
4) Makes all my movies look so good I can't stop cranking them thru.

If you can afford this one, grab it!!!
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post #11276 of 12231 Old 03-15-2019, 02:33 AM
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Originally Posted by John Schlarb View Post
Well, count me in as a JVC convert. I’m more of a cinephile than a videophile, and the only reason I upgraded from my Sony HW55ES was because I have a 2.35 screen (CIH setup) and I got tired of running back to the projector whenever I wanted to change the aspect ratio (I also HATED the crappy dials for adjusting the lens). So all I asked from the RS540 was lens memory. I honestly thought the Sony’s picture was as good as it could get. Boy, was I wrong.

The JVC is much darker, quieter, and sharper (with Eshift disabled!). I will probably never play with HDR and I think 1080p is “good enough”, but I still feel like this projector was a huge upgrade. So far I’ve watched...

John Wick - amazing shadow detail on the umbrellas at the funeral
Sully - pretty great demo of black and white together
Blue is the Warmest Color - flesh tones are perfect
The Ornithologist - wow, I felt like I was outside

It’s a great time for home theater, and a great time to be alive! We have so much excellent content. Streaming is something I couldn’t have dreamed of 25 years ago, and now we have streaming video that looks excellent on a 120” screen. Wow.
Any time you are watching 1080p material you should have your player upscale it to 4K and use Eshift as it will make a big difference.
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post #11277 of 12231 Old 03-15-2019, 08:24 AM
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I got lucky on the X790 I have now. I am not sure it could get any better!

All the best in your search!

One thing to keep in mind is the Dynamic Iris. I find it works great for SDR material but find it distracting on HDR material as I notice a lot of pumping and for that reason I do not use it. Others use the DI without an issue so it will just come down to your setup and if you notice it or not.
I am a very happy X790 owner and the ONLY issue I've seen is with the Dynamic Iris. I've found it vasalates, causing the picture to go from dark to light and back and forth in a very distracting cyclic nature on certain "darker" scenes. It does this for me independent of SDR vs HDR (it is equally distracting on both).

The solution is to simply disable this feature and set the iris to a manual setting.

Since I've done this, no more issues with "iris pumping".

BTW, I don't hear any eshift noise on my projector. The fan is hardly noticible either. My projector seems very quiet.
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post #11278 of 12231 Old 03-15-2019, 11:07 AM
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So what is the consensus on fine pixel adjustments (for whole screen, not zone)? Is it worth it to try it, or leave alone? I threw up a pattern where thin horizontal white lines appeared yellow/orange'ish. Regular pixel adjust seems like it can't get any better, but those lines are thicker and so it's likely micro adjustments that need to be made.


If using fine pixel, can you somehow turn the pattern off and just use what's already on your screen? I noticed that with lens shift/focus/zoom, it allows you to turn off the pattern, but not sure if that's possible for pixel adjustments.
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post #11279 of 12231 Old 03-15-2019, 03:46 PM
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Just got confirmation that Jeff Meier will be calibrating my 540 on April 12th. Super excited!
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post #11280 of 12231 Old 03-15-2019, 08:22 PM
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Quote:
Originally Posted by stumlad View Post
So what is the consensus on fine pixel adjustments (for whole screen, not zone)? Is it worth it to try it, or leave alone? I threw up a pattern where thin horizontal white lines appeared yellow/orange'ish. Regular pixel adjust seems like it can't get any better, but those lines are thicker and so it's likely micro adjustments that need to be made.


If using fine pixel, can you somehow turn the pattern off and just use what's already on your screen? I noticed that with lens shift/focus/zoom, it allows you to turn off the pattern, but not sure if that's possible for pixel adjustments.
I use as many adjustments as I can to get the convergence as good as I can. I’ve never noticed any picture degradation in normal viewing material. Many claim that sharpness suffers if zone adjustments are used, but I’m not sure how a misconverged picture could possibly look sharp. Besides, I’ve never noticed a sharpness degradation when using convergence adjustments.
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