BenQ LK970: 4K DLP, laser, $12,999k MSRP - Page 26 - AVS Forum | Home Theater Discussions And Reviews
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post #751 of 2564 Old 01-31-2019, 11:29 PM
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Dave You mentioned you are watching on a 235:1 screen? Friend is building out his theater now and has a 130" 235:1 but was looking for memory zoom.

How do you quickly switch to 16:9?

I sent him a link to the screen innovations transformer screen https://www.screeninnovations.com/screen/transformer/ thought combined with the lk970 would be pretty amazing
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post #752 of 2564 Old 01-31-2019, 11:40 PM
 
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Quote:
Originally Posted by gadgetfreaky View Post
Dave You mentioned you are watching on a 235:1 screen? Friend is building out his theater now and has a 130" 235:1 but was looking for memory zoom.



How do you quickly switch to 16:9?



I sent him a link to the screen innovations transformer screen https://www.screeninnovations.com/screen/transformer/ thought combined with the lk970 would be pretty amazing

It’s super easy. I have it ceiling mounted so the top with the lens shift knobs are on the bottom side so I just reach up and adjust as needed. I’m done before the content is even loaded up and playing.

Of course powered lens shift would be ideal, but for the cost of this and the image it throws compared to projectors costing 4-6 times as much (I’m looking at you Sony and JVC!), I’ll take the savings AND the incredible picture!
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post #753 of 2564 Old 01-31-2019, 11:53 PM
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Originally Posted by Dave Harper View Post
It’s super easy. I have it ceiling mounted so the top with the lens shift knobs are on the bottom side so I just reach up and adjust as needed. I’m done before the content is even loaded up and playing.

Of course powered lens shift would be ideal, but for the cost of this and the image it throws compared to projectors costing 4-6 times as much (I’m looking at you Sony and JVC!), I’ll take the savings AND the incredible picture!
I thought pushing lens memory buttons are super easy, not reaching the lens shift knobs. But ye, i really wanna get device like this but with lens memory. It's crucial for me. (my jvc x7900 was 2600€, new one.. so it was kinda no brainer)

Last edited by latexii; 02-01-2019 at 12:18 AM.
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post #754 of 2564 Old 02-01-2019, 08:43 AM
 
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Originally Posted by latexii View Post
I thought pushing lens memory buttons are super easy, not reaching the lens shift knobs. But ye, i really wanna get device like this but with lens memory. It's crucial for me. (my jvc x7900 was 2600€, new one.. so it was kinda no brainer)

Not with a Sony where it ends up in a different place every time!
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post #755 of 2564 Old 02-01-2019, 08:53 AM
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Not with a Sony where it ends up in a different place every time!
Hahah, ye true.
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post #756 of 2564 Old 02-01-2019, 03:52 PM
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Quote:
Originally Posted by latexii View Post
I thought pushing lens memory buttons are super easy, not reaching the lens shift knobs. But ye, i really wanna get device like this but with lens memory. It's crucial for me. (my jvc x7900 was 2600€, new one.. so it was kinda no brainer)
If you want ease of use with the Benq, I'd recommend a processor/player that supports anamorphic squeeze and an anamorphic lens you can just slide over (or have it motorized/triggered) to move into place for cinemascope material
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post #757 of 2564 Old 02-01-2019, 04:39 PM
 
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Originally Posted by Woof Woof View Post
If you want ease of use with the Benq, I'd recommend a processor/player that supports anamorphic squeeze and an anamorphic lens you can just slide over (or have it motorized/triggered) to move into place for cinemascope material

Yep, I agree. I have an ISCO III L here with a Cineslide (for now).
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post #758 of 2564 Old 02-01-2019, 07:58 PM
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Quote:
Originally Posted by Dave Harper View Post
Quote:
Originally Posted by Woof Woof View Post
If you want ease of use with the Benq, I'd recommend a processor/player that supports anamorphic squeeze and an anamorphic lens you can just slide over (or have it motorized/triggered) to move into place for cinemascope material

Yep, I agree. I have an ISCO III L here with a Cineslide (for now).
Dave. What's that? Should he do the same? How much is that setup and then what's the process of going 235:1 to 16:9?
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post #759 of 2564 Old 02-01-2019, 08:19 PM
 
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Originally Posted by gadgetfreaky View Post
Dave. What's that? Should he do the same? How much is that setup and then what's the process of going 235:1 to 16:9?

Oh yeah I didn’t think of that. He could certainly do that! The CineSlide will automatically slide into place for 2.35:1 scope material. It will slide out of place for 16:9 stuff. It’s a great solution for him!

There is a trigger built into the LK970 that uses a headphone mini type connection that will automatically trigger the CineSlide into place when he selects the 2.35:1 aspect ratio in the menu.

Shoot me an email if you want more info on the combo.
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post #760 of 2564 Old 02-02-2019, 12:21 AM
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Quote:
Originally Posted by Woof Woof View Post
If you want ease of use with the Benq, I'd recommend a processor/player that supports anamorphic squeeze and an anamorphic lens you can just slide over (or have it motorized/triggered) to move into place for cinemascope material
I have a UH480. The manual says the LK970 has anamorphic settings. Did I read it wrong and do I need another piece of equipment to do the anamorphic stretch or are you talking about just the ISCO needs a processor/player.
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Originally Posted by MX48 View Post
I have a UH480. The manual says the LK970 has anamorphic settings. Did I read it wrong and do I need another piece of equipment to do the anamorphic stretch or are you talking about just the ISCO needs a processor/player.

You only need the Lens and the LK970 to do the anamorphic stretch properly if you leave the lens in place or manually move it in and out. Or you can use something like the CineSlide to slide it in and out of the light path automatically, like I have for my ISCO III L.

The built in anamorphic mode of the LK970 works very well.
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post #762 of 2564 Old 02-02-2019, 02:16 AM
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Originally Posted by Dave Harper View Post
You only need the Lens and the LK970 to do the anamorphic stretch properly if you leave the lens in place or manually move it in and out. Or you can use something like the CineSlide to slide it in and out of the light path automatically, like I have for my ISCO III L.

The built in anamorphic mode of the LK970 works very well.

Thanks Dave. I built my own slide with a linear actuator that came with a remote.


Also ordered an FL-D filter to see what it does on my HT1075.
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Last edited by MX48; 02-02-2019 at 02:21 AM.
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post #763 of 2564 Old 02-02-2019, 04:10 AM
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Quote:
Originally Posted by Woof Woof View Post
If you want ease of use with the Benq, I'd recommend a processor/player that supports anamorphic squeeze and an anamorphic lens you can just slide over (or have it motorized/triggered) to move into place for cinemascope material
Ye i know that, since i live next to prismasonic factory ... But the costs goes too high for me.
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post #764 of 2564 Old 02-02-2019, 09:29 AM
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There is often the option of leaving the lens in place and scaling 16:9 to fit - some projectors have the ability to use the full height and squish the width, so you end up using 2880 x 2160, with the sides being projected as black unused bars. If you do that, you keep the same pixel density and reflectance level, but do lose some horizontal resolution for UHD 16:9 content. With upscaled BD you don't lose anything but are just scaling differently. Pros and cons for both methods, but it's just an alternative to having a sled to remove the lens.

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post #765 of 2564 Old 02-02-2019, 08:53 PM
 
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There is often the option of leaving the lens in place and scaling 16:9 to fit - some projectors have the ability to use the full height and squish the width, so you end up using 2880 x 2160, with the sides being projected as black unused bars. If you do that, you keep the same pixel density and reflectance level, but do lose some horizontal resolution for UHD 16:9 content. With upscaled BD you don't lose anything but are just scaling differently. Pros and cons for both methods, but it's just an alternative to having a sled to remove the lens.

The LK970 can do this.
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post #766 of 2564 Old 02-03-2019, 04:59 AM
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Originally Posted by Gary Lightfoot View Post
There is often the option of leaving the lens in place and scaling 16:9 to fit - some projectors have the ability to use the full height and squish the width, so you end up using 2880 x 2160, with the sides being projected as black unused bars. If you do that, you keep the same pixel density and reflectance level, but do lose some horizontal resolution for UHD 16:9 content. With upscaled BD you don't lose anything but are just scaling differently. Pros and cons for both methods, but it's just an alternative to having a sled to remove the lens.
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The LK970 can do this.
Yup with the below BenQ models not only can you do this but they also have built-in permanent mounting holes compatible with the Panamorph Paladin lens:
HT8050
HT8060
HT9050
HT9060
LK970
LK990
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Tried an FL-D filter. Did a quick cal on my HT1075. It made the blacks darker but cut my light output by 60%.
Could be there is some secret to it and I don't know what it is.
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post #768 of 2564 Old 02-06-2019, 11:03 AM
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IIRC, just adding an FL-Day should cut the lumens by around 50% (like an ND filter), but recalibrating usually give you back some lumens so the light loss is less. With some Sony projectors (vw40 IIRC) you get back all the lumens and gain a big chunk of on/off contrast and an improved black level performance.

You usually find a video setting like 'vivid' for example that is usually the very brightest setting but has more green and blue, and then add the filter. Make sure red is at max output - use the RGB balance display in your calibration software to see how much red you can get using the red gains - use the control to increase the red until you see it stop increasing even though you may be increasing the red gain - that will be the point where you have found the max red. Confirm it by raising and lowering the red gain to see the max point and leave the control there. Then calibrate the green and blue to match. Usually people calibrate around green but try it that way with the filter.

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Not working with the HT1075. Still lose half the brightness. Maybe it just won't work with this projector.
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post #770 of 2564 Old 02-06-2019, 11:35 AM
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Can you ramp up the RGB gains and show us the greyscale? It will be interesting to see what kind of colour balance you're getting natively from the laser. It could be you'll need a different filter maybe, like a yellow one perhaps.

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Who says Cameron is "right" and why do we care about him so much - lol!

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post #771 of 2564 Old 02-06-2019, 11:42 AM
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Sorry, should have made it more clear this is on an HT1075 (cheap) projector. Was trying it out on this before I think about getting an LK970.
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post #772 of 2564 Old 02-06-2019, 11:58 AM
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It would still be interesting to see the greyscale so we can try to understand why the FL-Day doesn't work with it.

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post #773 of 2564 Old 02-06-2019, 09:04 PM
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Question

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Originally Posted by latexii View Post
That isnt even hard to achieve.. just stack 2 similar projectors and you got ****load of lumens.. (by the costs of black..)
Isn't lens droop a common problem with most projectors? What exactly do you use to line them up perfectly?

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post #774 of 2564 Old 02-10-2019, 03:12 PM
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Quote:
Originally Posted by Dave Harper View Post
The LK970 can do this.
Hi DAVE, plz whenever ur ready post ur findings about HARPERVISION 2 for this unit, i m super interested to see what u come up with.

thank you.

JVC DLA X590/RS440
BenQ LK970

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post #775 of 2564 Old 02-10-2019, 03:19 PM
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ScottyB has asked if anyone could restate if external optic filters (red?) are part of maximizing the projector post calibration performance?

Btw... nice to hear from you scott.

JVC DLA-X990 (RS640) - 128" 2.35 1.3 Gain Screen - Panasonic UB820 - ROKU Ultra - PS4 - XBone
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ScottyB is a good guy. As far as I know Dave has started to experiment with filters and done some preliminary calibration work that looks promising. In that respect,I think that Dave is the only one using filters on this unit currently. It gets a little over 90% P3 gamut coverage without the filters and performs excellent pre filters. One word of caution is that the lens is very large on these units almost 90mm so it would be interesting to see which filters Dave is working with. Hopefully, he will post some info within this thread. (fingers crossed)



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Originally Posted by Bytehoven View Post
ScottyB has asked if anyone could restate if external optic filters (red?) are part of maximizing the projector post calibration performance?

Btw... nice to hear from you scott.
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post #777 of 2564 Old 02-10-2019, 07:51 PM
 
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BenQ LK970: 4K DLP, laser, $12,999k MSRP

Quote:
Originally Posted by tnaik4 View Post
Hi DAVE, plz whenever ur ready post ur findings about HARPERVISION 2 for this unit, i m super interested to see what u come up with.



thank you.

So am I, haha!!!

Just kidding. You know I will. Even with all the arrows I know will be shot into my back for posting such blasphemy.

Quote:
Originally Posted by Bytehoven View Post
ScottyB has asked if anyone could restate if external optic filters (red?) are part of maximizing the projector post calibration performance?



Btw... nice to hear from you scott.

The settings I’ve already posted here are not with any external filters. I just got some this week and was able to play with them for a couple hours one night. Hopefully it’ll turn into something good and then I’ll post info here.......I think (or maybe not given the lovely reactions to my attempt to share the joy with those other enthusiasts here on the forum).

Where is ScottyB that he can’t reply?


Quote:
Originally Posted by 12GAGE View Post
ScottyB is a good guy. As far as I know Dave has started to experiment with filters and done some preliminary calibration work that looks promising. In that respect,I think that Dave is the only one using filters on this unit currently. It gets a little over 90% P3 gamut coverage without the filters and performs excellent pre filters. One word of caution is that the lens is very large on these units almost 90mm so it would be interesting to see which filters Dave is working with. Hopefully, he will post some info within this thread. (fingers crossed)

I’m starting to wonder about that ~90% number though. I lost all my files from the initial run because I had to turn in all the gear and licenses I had when I quit working for my previous contract employer. This time when I measured pre-filters I wasn’t getting that but I swear I did before. It’s baffling me what I’m doing wrong or differently, or if my mind is playing tricks on me. I know you did measurements, is that what you got too? I think it may have been when I was pushing the color brightness very high, but upon further subsequent viewings I noticed bad banding type issues and other anomalies so I had to be less aggressive with my settings.

I am using some 77mm filters for my testing because they were cheaper and at my test cost limit. They are big enough to cover the image exiting the lens. Now that I am pretty sure I know they work for what I’m trying to do, I may get larger ones for permanent use.

Last edited by Dave Harper; 02-10-2019 at 08:04 PM.
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post #778 of 2564 Old 02-10-2019, 08:51 PM
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Quote:
Originally Posted by 12GAGE View Post
ScottyB is a good guy. As far as I know Dave has started to experiment with filters and done some preliminary calibration work that looks promising. In that respect,I think that Dave is the only one using filters on this unit currently. It gets a little over 90% P3 gamut coverage without the filters and performs excellent pre filters. One word of caution is that the lens is very large on these units almost 90mm so it would be interesting to see which filters Dave is working with. Hopefully, he will post some info within this thread. (fingers crossed)
Quote:
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So am I, haha!!!

Just kidding. You know I will. Even with all the arrows I know will be shot into my back for posting such blasphemy.

The settings I’ve already posted here are not with any external filters. I just got some this week and was able to play with them for a couple hours one night. Hopefully it’ll turn into something good and then I’ll post info here.......I think (or maybe not given the lovely reactions to my attempt to share the joy with those other enthusiasts here on the forum).

Where is ScottyB that he can’t reply?
Scotty ... I'm sure right about now scott is finishing up hosting a great evening of fine dining.

My only adventure into filters was our forum group ownership of the NEC HT1000 (thank you Alan). In the case of the nec ht1000, the filter did a great job. The experience was such that revisiting a filter assist on a contemporary laser or led projector, could be a possible no brainer.
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Last edited by Bytehoven; 02-10-2019 at 09:15 PM.
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post #779 of 2564 Old 02-11-2019, 07:08 AM
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Hey Dave, I think you are right on both relative to the coverage. I will check again on the next calibration. I remember getting 91% P3 coverage relative to volume but less gamut coverage. I believe those are the right terms. There are a few different P3 gamut’s so sometimes it is hard to talk apples to apples. In a qualitative sense, the unit seems to have good representation of the P3 color space relative to my filtered Sony which is 100% DCI P3.


Quote:
Originally Posted by Dave Harper View Post
Quote:
Originally Posted by tnaik4 View Post
Hi DAVE, plz whenever ur ready post ur findings about HARPERVISION 2 for this unit, i m super interested to see what u come up with.



thank you.

So am I, haha!!!

Just kidding. You know I will. Even with all the arrows I know will be shot into my back for posting such blasphemy.

Quote:
Originally Posted by Bytehoven View Post
ScottyB has asked if anyone could restate if external optic filters (red?) are part of maximizing the projector post calibration performance?



Btw... nice to hear from you scott. [IMG class=inlineimg]/forum/images/smilies/biggrin.gif[/IMG]

The settings I’ve already posted here are not with any external filters. I just got some this week and was able to play with them for a couple hours one night. Hopefully it’ll turn into something good and then I’ll post info here.......I think (or maybe not given the lovely reactions to my attempt to share the joy with those other enthusiasts here on the forum).

Where is ScottyB that he can’t reply?


Quote:
Originally Posted by 12GAGE View Post
ScottyB is a good guy. As far as I know Dave has started to experiment with filters and done some preliminary calibration work that looks promising. In that respect,I think that Dave is the only one using filters on this unit currently. It gets a little over 90% P3 gamut coverage without the filters and performs excellent pre filters. One word of caution is that the lens is very large on these units almost 90mm so it would be interesting to see which filters Dave is working with. Hopefully, he will post some info within this thread. (fingers crossed)

I’m starting to wonder about that ~90% number though. I lost all my files from the initial run because I had to turn in all the gear and licenses I had when I quit working for my previous contract employer. This time when I measured pre-filters I wasn’t getting that but I swear I did before. It’s baffling me what I’m doing wrong or differently, or if my mind is playing tricks on me. I know you did measurements, is that what you got too? I think it may have been when I was pushing the color brightness very high, but upon further subsequent viewings I noticed bad banding type issues and other anomalies so I had to be less aggressive with my settings.

I am using some 77mm filters for my testing because they were cheaper and at my test cost limit. They are big enough to cover the image exiting the lens. Now that I am pretty sure I know they work for what I’m trying to do, I may get larger ones for permanent use.
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post #780 of 2564 Old 02-15-2019, 12:52 PM
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I’m going to contact the distributor locally and see where I can see an LK970 on display and see if it could be my new projector.
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