Ok, now I am confused....Sony vs. JVC light ouput - AVS Forum
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post #1 of 8 Old 01-01-2014, 01:27 PM - Thread Starter
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I am upgrading my Sony VPL-HW30ES due to going with an acoustically transparent screen (132", 16:9, 1.1 gain) with a long throw distance (16ft). After much research and talking, I figured I would settle on the Sony HW55ES due to it's improved lamp life, light output, and contrast ratio. I was persuaded away from any of the JVC's due to them having less total light output compared to the Sony's. However, upon using the Projector Pro Calculator over at Projector Central, comparing last years Sony (HW50ES) to last years JVC (RS56), it says that at 16ft throw distance onto a 1.1 gain 132" 16:9 screen, the JVC will have MORE light output (21fL) vs. the Sony (16fL).

What gives? Considering the HW55ES has the same lamp/output as the 50ES, yet the newer JVC's have MORE output compared to their respective models from last year, why am I under the impression that the JVC's are not the best suited for bigger screens?

Thanks guys!
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post #2 of 8 Old 01-01-2014, 02:50 PM
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Without looking things up, its probably the effective f stop of the the different lens at the given throws needed for the screen size.

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post #3 of 8 Old 01-01-2014, 02:57 PM - Thread Starter
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Quote:
Originally Posted by mark haflich View Post

Without looking things up, its probably the effective f stop of the the different lens at the given throws needed for the screen size.

In layman's terms, would that mean the JVC can do less with more?
I.E. - the Sony 50ES is rated at a higher lumen output then the RS56 yet, as demonstrated by the Projector Central calculator, has less fL than the RS56.
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post #4 of 8 Old 01-01-2014, 03:59 PM
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those calculators don't take into account 'best mode' / D65 calibration. Comparing the HW50 and RS46/RS4810 from last year @ D65, you're looking at about ~100 delta in lumen output, not a make / break amount of light to make a decision for one or the other.

is 3D important? both could be tough on that size screen with no gain.


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post #5 of 8 Old 01-01-2014, 04:38 PM
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Quote:
Originally Posted by zombie10k View Post

those calculators don't take into account 'best mode' / D65 calibration. Comparing the HW50 and RS46/RS4810 from last year @ D65, you're looking at about ~100 delta in lumen output, not a make / break amount of light to make a decision for one or the other.

is 3D important? both could be tough on that size screen with no gain.



zombie,

Even though D65 calibration is not being taken into account, is the calculator at Projector Central utilizing High or Low lamp mode in it's calculation for the JVC RS46? confused.gif

Thanks!


...Glenn smile.gif
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post #6 of 8 Old 01-01-2014, 04:40 PM - Thread Starter
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What about HW30 vs RS56? Still not a noticeable output difference to influence the decision? I ask because I am about to pull the trigger on a used (50 hours) RS56 to upgrade my HW30ES with and was trying to make sure I won't shoot myself in the foot for light output.

I have 0 use for 3D. Used it for a month or so and just never got into it. So no, 3D isn't important for me. Just pure 2D picture quality.

Thanks!
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post #7 of 8 Old 01-01-2014, 05:00 PM
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BCJ - The 30 and 56 would be comparable once both are calibrated. You should be able to pick up on the extra sharpness + better contrast over the HW30 so that is a nice upgrade.

Glenn - they can only go by the manufacturers published lumen output which is usually nowhere near it's real value once calibrated. JVC has stated 1300 max, Sony 1700, Epson 2400, etc. These are all false #'s once calibrated. Even though the Epson is rated the highest, in best mode high lamp, it would still lag behind the Sony HW50 and JVC RS4810. ~700 vs. ~ 900 vs. ~ 800 at 17 feet from my 142".

The Epson's can be configured in living room mode to ~1100 lumens at near D65 which helps with ambient light viewing.


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post #8 of 8 Old 01-01-2014, 05:58 PM - Thread Starter
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Quote:
Originally Posted by zombie10k View Post

BCJ - The 30 and 56 would be comparable once both are calibrated. You should be able to pick up on the extra sharpness + better contrast over the HW30 so that is a nice upgrade.

Glenn - they can only go by the manufacturers published lumen output which is usually nowhere near it's real value once calibrated. JVC has stated 1300 max, Sony 1700, Epson 2400, etc. These are all false #'s once calibrated. Even though the Epson is rated the highest, in best mode high lamp, it would still lag behind the Sony HW50 and JVC RS4810. ~700 vs. ~ 900 vs. ~ 800 at 17 feet from my 142".

The Epson's can be configured in living room mode to ~1100 lumens at near D65 which helps with ambient light viewing.

Sweet, thanks for the input! RS56, here I come!
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