Do Most Projectors Have AR Patterns For Zooming? - AVS Forum
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post #1 of 14 Old 03-21-2010, 08:05 AM - Thread Starter
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To clarify my question:

I'm using the JVC RS20 in a "zooming" set up, using 4 way masking. It's working wonderfully well. Re-sizing the image and zooming takes seconds.

What is very helpful is that when I press the "Zoom" and "Shift" function on the RS20 it throws up a nice clear pattern on the screen, outlining various ARs (16:9, 1:85:1 I think, 2:35:1 and 4:3). That pattern makes it super easy to re-size the image even without a movie playing.

So, when it comes to upgrading my projector in the future, I'm wondering about other projectors: is it typical for a projector (especially around this price point) to have such a lens pattern feature with the ARs depicted? I might be bummed a bit if my next projector doesn't have this.

It wouldn't be a deal breaker; I could always use the actual movie image to fit, but I do like the option of the lens pattern.

Thanks
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post #2 of 14 Old 03-21-2010, 08:11 AM
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I've never seen anything like that, though I've also never had a projector with remote control zoom.

See what an anamorphoscopic lens can do, see movies the way they were meant to be seen
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post #3 of 14 Old 03-21-2010, 08:20 AM
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this is what mine puts up.

excuss the screen. that is a mock up.
LL

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post #4 of 14 Old 03-21-2010, 10:39 AM - Thread Starter
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What projector is that, Fabricator?

The JVC pattern is definitely more detailed.

I wonder if Jason or another AVSforum employee can chime in, having seen so many projectors in their line of work.
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post #5 of 14 Old 03-21-2010, 02:00 PM
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Quote:
Originally Posted by R Harkness View Post

What projector is that, Fabricator?

The JVC pattern is definitely more detailed.

http://www.amazon.com/Viewsonic-PRO8...9205118&sr=8-1
it had a msrp of $5000


how about some pics ...

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post #6 of 14 Old 03-22-2010, 06:21 AM
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Rich - can you post a pic of the JVC pattern?

Thanks!
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post #7 of 14 Old 03-22-2010, 07:27 AM - Thread Starter
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Ok, I'll try to post a photo of the JVC pattern.

Can anyone - Jason? - else chime in on this?
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post #8 of 14 Old 03-22-2010, 07:28 AM
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The Samsung SP-900B has one in the user test patterns. Its called size.

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post #9 of 14 Old 03-22-2010, 07:38 AM
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Quote:
Originally Posted by R Harkness View Post

To clarify my question:

I'm using the JVC RS20 in a "zooming" set up, using 4 way masking. It's working wonderfully well. Re-sizing the image and zooming takes seconds.

What is very helpful is that when I press the "Zoom" and "Shift" function on the RS20 it throws up a nice clear pattern on the screen, outlining various ARs (16:9, 1:85:1 I think, 2:35:1 and 4:3). That pattern makes it super easy to re-size the image even without a movie playing.

So, when it comes to upgrading my projector in the future, I'm wondering about other projectors: is it typical for a projector (especially around this price point) to have such a lens pattern feature with the ARs depicted? I might be bummed a bit if my next projector doesn't have this.

It wouldn't be a deal breaker; I could always use the actual movie image to fit, but I do like the option of the lens pattern.

Thanks

Rich, are you needing to refocus with each change? Am guessing yes as someone prior had said even small changes in zoom / shift changed the focus a bit.

When are you going to post some pics???
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post #10 of 14 Old 03-22-2010, 07:44 AM - Thread Starter
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Quote:
Originally Posted by RonF View Post

Rich, are you needing to refocus with each change? Am guessing yes as someone prior had said even small changes in zoom / shift changed the focus a bit.

When are you going to post some pics???

You know what? The focus seems to change so little when I re-size that I almost never bother re-focusing (and when I do check focus up close I can rarely see a difference). The image looks pin-sharp whether it's blown up big or made smaller. I'm frankly amazed how convenient this zooming system has turned out to be.

At some point I plan to post pictures and hopefully some video of the masking system + zooming feature in action.
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post #11 of 14 Old 03-22-2010, 08:31 AM
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Quote:
Originally Posted by R Harkness View Post

You know what? The focus seems to change so little when I re-size that I almost never bother re-focusing (and when I do check focus up close I can rarely see a difference). The image looks pin-sharp whether it's blown up big or made smaller. I'm frankly amazed how convenient this zooming system has turned out to be.

At some point I plan to post pictures and hopefully some video of the masking system + zooming feature in action.

Rich, the zooming on the JVC's are indeed convienient. Almost too much, as I find myself tweaking way too much I always refocus after doing anything with the zoom. While the difference isn't drastic, I still find a subtle shift. What PJ are you thinking of upgrading to? Moving away from JVC in general?

Chris
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post #12 of 14 Old 03-22-2010, 08:38 AM
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I've never found the need to refocus when zooming either my previous dVision 1080p or my Lumis, but I am only zooming from 106" wide to 118" wide, so it isn't a big change. And my 2 screens are only 5" apart at most.

While the Lumis has an AR pattern, I never use it. I use a paused movie - whatever we are about to watch that is requiring me to zoom to a different aspect ratio.

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post #13 of 14 Old 03-22-2010, 09:00 AM - Thread Starter
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Quote:
Originally Posted by christopher a View Post

Rich, the zooming on the JVC's are indeed convienient. Almost too much, as I find myself tweaking way too much I always refocus after doing anything with the zoom. While the difference isn't drastic, I still find a subtle shift. What PJ are you thinking of upgrading to? Moving away from JVC in general?

Chris

I'm not planning on a change in projectors soon. It's just that, when I was recently programming more pre-set image size/ARs into my remote, I noted how convenient the AR pattern has been to use on my JVC, so I wondered if
that was something I'd have to likely give up, or if it's something I should expect to have, when I decide to upgrade projectors.

ETA: For kicks I was fooling around with my zoom/remasking while timing how long it takes. I've got it down to around 15 seconds to re-size the screen and fit the image to the screen. (E.g. changing from a 16:9 AR to a new 2:35:1 AR sized image). Lowest time was 12 seconds.
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post #14 of 14 Old 03-22-2010, 09:33 AM
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Changing the iris setting affects the focus enough to require a refocus to obtain maximum sharpness on the JVCs. See Mark Petersen`s Bloq Videovantage.

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