View Full Version : Native 480p with lens shift?


k2500x
08-27-07, 12:15 AM
The Epson PowerLite Home 20 Projector is the only 480p with this feature I could find. Reviews are not so hot as far as black levels are concerned. But I'd really like the lens shift since I want to put the projector on an upper back shelf and I'll need to adjust it for sure.

Are there any other native 480p models with lens shift? Maybe older projectors that were top of the line "back in the day" that don't cost an arm and a leg now on the used market?

Tony~M
08-27-07, 01:02 AM
Hello All,

Hope you are all well.

1000:1 on/off contrast on LCDs is on the high end. Higher than that is achieved with dynamic irises, and dynamic lamp dimming techniques. I don't recall any of the 480p class LCD units employing either of those techniques, however almost all the older LCD units have lens shift to varying degrees.

Some Models:

Hitachi Home-1 (800:1 contrast, 700 ANSI Lumens)
Sanyo PLV-Z1 (this one is 1/4 HD 964x544, 800:1 contrast, 700 ANSI Lumens)
Epson MovieMate 25 (1000:1 contrast, 1200 ANSI Lumens)
Epson MovieMate 30s (1000:1 Contrast, 1200 ANSI Lumens)

Out of these only the Epson MovieMate 30s is still in production. Difference between 25 and 30s is an HD15 port that also accepts component input on the 30s.

You can see here that the older units are 200 worse in contrast compared to the more modern LCD units.

If you need more contrast, you are going to have to look at units with an iris, or active lamp dimming technology. Like the Epson Cinema 400, Sanyo Z4 or Z5, Panasonic AE900 or AX-100u etc... All costing considerably more than the Home 20 you are looking at.

Hope this helps.

Later,

Tony

k2500x
08-27-07, 07:59 AM
Oh sorry if I didn't make myslef clear, but it doesn't have to be an LCD projector. Anything else? Anyone own a Home 20?

gwlaw99
08-27-07, 11:34 AM
Is there are reason you must have native 480p? Is it a price constraint? If so what is your budget?

Tony~M
08-27-07, 12:08 PM
Oh sorry if I didn't make myslef clear, but it doesn't have to be an LCD projector. Anything else? Anyone own a Home 20?

Hello All,

Hope you are all well.

K2500x, No problem. I am sorry I misinterpreted your post as being LCD only. Unfortunately the DLP units do not include lens shift until the high end units, I believe the least expensive is in the $3,000 range. The lower end DLPs incorporate an aggressive built in offset so the image is projected above the projector by a high percent, this makes them harder to incorporate into your theater, usually ceiling mounting is required...or utilizing digital keystone correction.

I do not own a Home 20, however I just purchased an Epson MovieMate 30s which utilizes the same engine, it is arriving this coming Wednesday. I am planning to post my impression of the unit here when it arrives.

Hope this helps.

Later,

Tony

k2500x
08-27-07, 04:17 PM
Yeah it was a budget and a image issue. My sources are only 480p right now so I don't see the point in going with a 720p. I don't like scaled images, and I'd rather spend less now and get the 720p for half price next year. Anyway, I just got myself a IN72 so I guess I'll have to suffer with the placement issues. My shelf is 72" high so maybe it will be as easy as turning the thing on its back?

jrwhite
08-27-07, 04:29 PM
I setup a Home 20 for a neighbour. While the on/off is not the best, the bright scene instantaneous cr appears good because it is quite bright. she has been using amost daily for more than a year without a single issue.

I paired with with an inexpensive Optoma Greywolf for her, as the Greywolf helps mask SDE, helps the blacks out a bit, and the extra gain makes the picture pop.

Jonathan

Tony~M
08-27-07, 04:33 PM
Yeah it was a budget and a image issue. My sources are only 480p right now so I don't see the point in going with a 720p. I don't like scaled images, and I'd rather spend less now and get the 720p for half price next year. Anyway, I just got myself a IN72 so I guess I'll have to suffer with the placement issues. My shelf is 72" high so maybe it will be as easy as turning the thing on its back?


Hello All,

Hope you are all well.

K2500X, enjoy your new projector the IN72 is a very nice projector that people rave about.

Inverting the unit is acceptable as long as you do not block any air vents, controls, etc...

If you do invert it and tilt it, you can tilt your screen down towards the viewing area to compensate for the keystone. This is far more natural than having to tilt the screen backwards to compensate if you leave the projector upright.

Have fun when it arrives.

Later,

Tony

jrwhite
08-27-07, 04:53 PM
Missed the OP's last post.

K2500x, the IN72 is a far superior machine image wise. I'm sure you'll be happy.

Jonathan

k2500x
08-27-07, 06:50 PM
K2500X, enjoy your new projector the IN72 is a very nice projector that people rave about.

Inverting the unit is acceptable as long as you do not block any air vents, controls, etc...

If you do invert it and tilt it, you can tilt your screen down towards the viewing area to compensate for the keystone. This is far more natural than having to tilt the screen backwards to compensate if you leave the projector upright.


Not quite sure I understand you. I'm projecting onto a painted white wall. So at about 72" high and 13 feet away, I'm not expecting to need to tilt the projector much once it's inverted. But then again I don't really know what I'm talking about. ;)

Tony~M
08-27-07, 09:36 PM
Not quite sure I understand you. I'm projecting onto a painted white wall. So at about 72" high and 13 feet away, I'm not expecting to need to tilt the projector much once it's inverted. But then again I don't really know what I'm talking about. ;)

Hello All,

Hope you are all well.

K2500X, lol...sorry, indeed you can't tilt your wall. Just use the digital keystone..hehe...

Later,

Tony