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Discussion Starter · #1 ·
Just thought that we should start up this thread again since the old one got locked somehow. I just purchased a used RS20 over a month ago, and this is my first JVC PJ. WOW
black levels, colors, sharpness, and all the other great stuff make this 3 year old projector seem VERY up to date IMO...for those of you that don't need FI or 3D, this baby really does shine. I would like to hear fellow RS20/HD750 owners and their experiences with this machine, and any 'tweaks' they have done as well. Lets get the ball rolling (again).


PS. Don't forget to mention what screen you are using as well...
 

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Aww you beat me to it, lol. Guess I'll delete my thread and post here then. I'd suggest putting a link to the old thread in the first post for reference.
 

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Funny, as an RS20 owner I considered starting a similar thread.


Several years ago I almost bought the earlier RS2, just before the RS20. I'm sooooo glad I held out for the RS20! It is just the total package for meeting my needs - fantastic image that still makes me go "wow." I got a really sharp unit in terms of focus. It's quiet. Got it ISF calibrated. I love how it looks (MUCH more stylish then the revert-to-industrial-chunky style of the newer models). It's been reliable. It's lens controls have been fantastic for my variable image size set up.


Thankfully, for my pocket book, it makes it easy to pass on upgrades at this point.

I'm not looking for 3D so much as significantly better black levels, so I may be holding on to this a while yet until (hopefully) that occurs.
 

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Please guys. Let's not repeat posts from the other threads. Settings, tweaks etc, there are many in the other threads. Of course, if anyone has something new to add, please do it. Congrats on those who have just purchased.
 

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Discussion Starter · #5 ·
I don't have my RS20 pro calibrated...BUT, I will say that my 'formula' from the THX setting is quite nice. I got myself into a BMW with a Chevy cash flow
, hence the fact I don't have my own calibration equipment...I think I will just keep playing with it, and enjoying it at the same time!
 

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Discussion Starter · #7 ·
I have a question for the projector calculator and the RS20. I want to see if I can throw a 115" 2.35:1 screen with a 12ft throw. I'm doing the 'zoom' method for 2.35 content so what would the 'virtual' screen size be when zoomed in (including the black bars)??? I think it's going to be very close....anyone care to chime in on this?
 

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Quote:
Originally Posted by KBMAN /forum/post/20738496


I have a question for the projector calculator and the RS20. I want to see if I can throw a 115" 2.35:1 screen with a 12ft throw. I'm doing the 'zoom' method for 2.35 content so what would the 'virtual' screen size be when zoomed in (including the black bars)??? I think it's going to be very close....anyone care to chime in on this?

You'd need to size for a 16:9 that's the same width as your desired 2.35:1 screen size. Assuming that's 115" wide (not diagonal), the 16:9 would be 115 / 16 * 9 = 64.69" high.
 

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Discussion Starter · #10 ·
sorry....figured it out. I forgot that * means times
just found out with the pj calculator that my projector needs to be 6" more back for a 115" diag screen....bummer. I'll have to try some other size calculations (thanks Brad) to see how big of a screen I can use at a 12' throw....
 

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Quote:
Originally Posted by KBMAN /forum/post/20738868


sorry....figured it out. I forgot that * means times
just found out with the pj calculator that my projector needs to be 6" more back for a 115" diag screen....bummer. I'll have to try some other size calculations (thanks Brad) to see how big of a screen I can use at a 12' throw....

The widest possible screen you can fit from a 12 ft (144") distance is 144/1.37 = ~ 105" , but this gives a 16x9 diagonal of ~ 120". So you should be OK for a 115" diag. [The throw ratio is listed as 1.4, but in reality it is a bit less, ~ 1.37.]
 

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Is that 12' throw taking into account the depth of the projector? I'm not 100% sure, but I *think* the distances are from the front of the lens to the screen - so you'd have to allow for the depth of the projector case.
 

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Quote:
Originally Posted by Brad Horstkotte /forum/post/20739210


Is that 12' throw taking into account the depth of the projector? I'm not 100% sure, but I *think* the distances are from the front of the lens to the screen - so you'd have to allow for the depth of the projector case.

Correct.
 

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Quote:
Originally Posted by KBMAN /forum/post/20739171


millerwill,

So in simple terms I should be OK with a 115" diag. 2.35:1 screen?

You're right on the edge! A 115" diag 2.35 screen will have a width = 115*2.35/sqrt(1 + 2.35^2) = 105.8", and the minimum lens-to-screen distance for a 105.8" width is 105.8*1.37 = 145", an inch more than 12 ft!
 

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Quote:
Originally Posted by KBMAN /forum/post/20740042


wow miller, that IS pretty close! And I thought the throw was from lens to screen, not entire machine to screen. Am I right on that?

The throw is lens to screen.
 

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Discussion Starter · #18 ·
So should I go with the 115"? just wondering....there are other options, but the Elite Screen will barely fit between my two light sconces...116.75" apart...the overall screen dim. for the EZframe will be 110.6" wide to give about 3" space on each side of the lights
thoughts?
 

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Quote:
Originally Posted by KBMAN /forum/post/20741198


So should I go with the 115"? just wondering....there are other options, but the Elite Screen will barely fit between my two light sconces...116.75" apart...the overall screen dim. for the EZframe will be 110.6" wide to give about 3" space on each side of the lights
thoughts?

It sounds like it will fit, but you of course have to decide if you want it for your space. However I've never heard anyone say they wish they had gotten a smaller screen, but many say they wish they have gotten a larger one.


I just replaced my 110x62 screen of 4 years with a 144x72 one (viewing from 12 ft) and love it. (And it's about as large that will fit my space, so not larger!)
 

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Discussion Starter · #20 ·

Quote:
Originally Posted by millerwill /forum/post/20741987


It sounds like it will fit, but you of course have to decide if you want it for your space. However I've never heard anyone say they wish they had gotten a smaller screen, but many say they wish they have gotten a larger one.


I just replaced my 110x62 screen of 4 years with a 144x72 one (viewing from 12 ft) and love it. (And it's about as large that will fit my space, so not larger!)

Yeah, I agree with you. However, my screen size jump is not even close to yours....I'm coming from a 104" diag. DIY screen, so that would be almost a foot bigger (diagonally). This will not be my last screen purchase; I could be moving out of my house in about 5-7 years. Hell, who knows with this economy. What I DO know is that by that time I will have at least a 130" AT screen with a projector that can melt eyeballs
Thanks for taking the time to do the math and such for me
 
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