Projector Screen V's Distance Calculations

[aaa67]

Back again, cap in hand for some advice.

My nine yr old daughter is over for Easter holidays, and I've moved into a rental house

in a different town. Promised animations at cinema quality, blah blah,

Oh Sh@#$TTT.

Task 1 - putting up the 80' cinema snap screen without using supplied bracket's

(eight rather large holes in rental wall will be expensive)

Task 2 - Projector now 4.25m from screen. A quick trip to Projector Central

says 1.0 x zoom distance to fit a 80 inch ( read 2000 mm diagonal 16:9 widescreen),

with this Sanyo Z2 projector is 3.12m, minimum screen size at 4.2m is 2680 mm or

106 inch.

Now this projector is old, and was never a light cannon ( at 800 ANSI), so a 106 inch

screen is out. (also my Bravia panel is below it so the 80 inch is as big as will fit.

There seems only three solutions, Roof mount the projector at 3.12m, Some sort of

lens to go over the existing lens to get the tighter focus required, or a new projector

to shine at the 80' screen.

The first has the same problem as the screen - rental house holes in roof, besides running the cable etc.

The third is the expense, - plus I haven't kept up my research, so what to get and how much

ie, no more than $3k max, LCD only please.

That leaves solution two. Anybody know of a lens fix for this problem, if so, how much and

where from.

Please help, Or will have to take daughter to local cinema, NNNnnnnooooooo...........

(Not to mention the footy)

Al

[The_Preacher1973]

That leaves solution two. Anybody know of a lens fix for this problem, if so, how much and

where from.

Please help, Or will have to take daughter to local cinema, NNNnnnnooooooo...........

(Not to mention the footy)

Al

Lenses to increase the throw of the projector do exist but they're about as expensive as replacing the PJ with a longer throw unit such as the Epson TW700:

Screenstar Lenses

My solution would be that since you're after something in the short term for your daughter's visit, I'd temporarily mover the Bravia so you can mount the screen lower and then use a coffee table mount for the PJ. This will get you out of trouble in the short term and give you time to come up with a better longer term solution.

Good luck.

[mgrobins]

I was about to suggest what Preach did.... coffee table setup would be the best short term solution.

Maybe you could just sell her on the Bravia

[The_Preacher1973]

Also, I've found a good way to temporarily mount a fixed screen is to rest it on top of something up against the wall and put some of those double sided sticky pads you can buy from newsagents on the back of the screen. The platform takes the vertical load and the sticky pads stop the screen from falling over. Combine that with the coffee table for the PJ and you should be able to get a temporary set up going very quickly and easily.

[Foggy]

Just adding to the Preacher's & mg's excellent suggestions, don't forget to cover the coffee table (or whatever prop you use use) with a dark towel or cloth to stop it reflecting up onto the screen.

[aaa67]

Gentlemen, thankyou all for your thoughtful advice.

I will be able to put two 30kg picture hooks into the wall studs,

and will run fine wire cord through the holes in the top of the screen.

I should then be able to hang it in mid air, so to speak. This will leave

minimal visable damage to the rental house walls.

Alas the projector is an unsolvable problem. I have told my daughter she will

have to put up with the Bravia 40', and we will visit the cinema instead. (oh the shame).

I had just purchaced a new lamp for the Z2 as well, $440 down the tube. I'll now have too

sell it and purchace a new projector with the required throw.

Any idea's - It seam's the Z5 or the TW700 are the front runners in the sub $3K LCD

market nowdays, I know there will be a noticable diffrence to the Z2 at any rate.

Any idea's on pricing for these unit's.

Also how much I could get for a Z2 still with 100hrs on the current 3rd lamp and a new one included?

I was thinking replacement for the lamp $440 and $500 for the projector, so $940 all up.

This projector has 3424 hours on it and is at the end of its third lamp. (still in it). Has

been profesionaly serviced at the end of its 2nd lamp. Never had any problems, didn't want

to replace it till next year, as I'm having a year off back at uni to finish an old degree, so

I'm tight for cash.

I still have original packaging, manuals and remote. With deleivery dockets and recipts for

the still boxed replacement lamp.

I may post this question separately, Thanks again,

Al.