Home Projectors - Physical Tour5

March 14, 2008

/ By Jennifer Stringfellow

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Epson Home Cinema 8500UB vs Sanyo PLV-Z3000 5 Compare Projectors - Epson Home Cinema 8500UB vs Sanyo PLV-Z3000 6 Compare Projectors - BenQ W6000 vs. Epson Home Cinema 8500UB Compare Projectors - BenQ W6000 vs. Epson Home Cinema 8500UB 2 Compare Projectors - BenQ W6000 vs. Epson Home Cinema 8500UB 3 Compare Projectors - BenQ W6000 vs. Epson Home Cinema 8500UB 4 Compare Projectors - BenQ W6000 vs. Epson Home Cinema 8500UB 5 Compare Projectors - BenQ W6000 vs. Epson Home Cinema 8500UB 6 Compare Projectors - BenQ W6000 vs. Epson Home Cinema 8500UB 7 Compare Projectors - Epson 8500UB vs. JVC DLA-RS25 Compare Projectors - Epson 8500UB vs. JVC DLA-RS25 2 Compare Projectors - Epson 8500UB vs. JVC DLA-RS25 3 Compare Projectors - Epson 8500UB vs. JVC DLA-RS25 4 Compare Projectors - Epson 8500UB vs. JVC DLA-RS25 5 Compare Projectors - Epson 8500UB vs. JVC DLA-RS25 6 Compare Projectors - Epson 8500UB vs. Panasonic PT-AE4000U Compare Projectors - JVC DLA-RS25 vs. JVC DLA-RS35 Compare Projectors - JVC DLA-RS25 vs. JVC DLA-RS35 2 Compare Projectors - JVC DLA-RS25 vs. JVC DLA-RS35 3 Compare Projectors - JVC DLA-RS25 vs. JVC DLA-RS35 4 Compare Projectors - JVC DLA-RS25 vs. JVC DLA-RS35 5 Compare Projectors - JVC DLA-RS25 vs. JVC DLA-RS35 6 Compare Projectors - JVC DLA-RS25 vs. JVC DLA-RS35 7 Compare Projectors-Mitsubishi HC3800 vs. Optoma HD20 Compare Projectors-Mitsubishi HC3800 vs. Optoma HD20 2 Compare Projectors-Mitsubishi HC3800 vs. Optoma HD20 3 Compare Projectors-Mitsubishi HC3800 vs. Optoma HD20 4 Compare Projectors-BenQ W6000 vs. LG CF181D Home Projectors Compared Compare Projectors-BenQ W6000 vs. LG CF181D Home Projectors Compared 2 Compare Projectors-BenQ W6000 vs. LG CF181D Home Projectors Compared 3 Compare Projectors-BenQ W6000 vs. LG CF181D Home Projectors Compared 4 Compare Projectors-BenQ W6000 vs. LG CF181D Home Projectors Compared 5 Compare Projectors - Epson 8100 vs. Epson 8500UB Compare Projectors - Epson 8100 vs. Epson 8500UB 2 Compare Projectors - Epson 8100 vs. Epson 8500UB 3 Compare Projectors - Epson 8100 vs. Epson 8500UB 4 Compare Projectors - InFocus SP8602 vs. JVC DLA-RS15 Compare Projectors - InFocus SP8602 vs. JVC DLA-RS15 2 Compare Projectors - InFocus SP8602 vs. JVC DLA-RS15 3 Compare Projectors - InFocus SP8602 vs. JVC DLA-RS15 4 Compare Projectors - InFocus SP8602 vs. JVC DLA-RS15 5 Compare Projectors - InFocus SP8602 vs. JVC DLA-RS15 6 Compare Projectors - InFocus SP8602 vs. JVC DLA-RS15 7 Home Theater Projectors - Warranty and Support 2 Home Projector Comparison Report: Summary 2

Lens Throw and Lens Shift

Some projectors have a lot of placement range, while others are severely limited. With few exceptions, 3LCD projectors and LCoS projectors are extremely flexible, with zoom lenses with plenty of zoom, and all of these two groups of projectors have lens shift. By comparison, the DLP projectors consistently have very little zoom range. Some of the DLP projectors have lens shift others do not. Even when they do have lens shift, they don't have as much as the other types.

Let's discuss the issues, then get into the individual projector's abilities.

Lens shift is a requirement if you want to shelf mount a projector in the rear of your room. It allows the projector to maintain a proper, rectangular image on the screen from different heights, and for a projector placed higher than the mid-point on the screen, without lens shift, the projector must be inverted, so, essentially, ceiling mounted.

The other thing you need to shelf mount, is a projector that can be placed far enough back to sit on a rear shelf. Of course your room length and screen size come into play. Let's say that those projectors without lens shift normally also have lenses with very little zoom range, so their throw distance range is normally kept fairly short, figuring that ceiling mounting is easier, closer to the screen.

Here's a chart organized by our three Classes. For each projector, it provides placement information in terms of distance and height, for a 100 inch 16:9 screen. Using these numbers, you can determine the ranges for any sized screen just with a simple calculation.

All of these projectors can be ceiling mounted. The ones in Italic can be shelf mounted

Closest Furthest Adj Shift max
in feet in feet Lens shift Ht. (inches)
Under $2100
BenQ W1000 11.5 13.8 N 7.4
Epson HC8100 9.8 20.9 Y 22.7
Mitsubishi HC3800 11.1 16.4 N 16.5
Optoma HD20 10.9 13.1 N 8
Panasonic PT-AE4000U 9.9 19.8 Y 24.5
Samsung SP-A600 11.1 14.4 N 12
Sanyo PLV-Z700 9.8 20 Y 24.5
Sharp XV-Z15000 10.3 11.9 N 7.9
Vivitek H1080FD 10.9 13.1 N 7.9
$2100-$3500
BenQ W6000 11.8 17.7 Y 0
Cinetron HD700 12.8 18.4 Y 6.9
Epson HC8500UB 9.8 20.9 Y 22.7
Epson HC9100 9.8 20.9 Y 22.7
Epson HC9500UB 9.8 20.9 Y 22.7
LG CF181D 9.8 17.8 Y 9.9
Mitsubishi HC6800 10.2 16.4 Y 12.3
Mitsubishi HC7000 10.2 16.4 Y 12.3
Optoma HD8200 10.9 16.6 Y 17
Sanyo PLV-Z3000 9.8 20 Y 24.5
Sony VPL-HW15 10.1 16.3 Y 7.5
$3500 - $10,000
InFocus SP8602*** 10.9 16.8 Y 14.9
JVC RS15 9.9 20.1 Y 15
JVC RS25 9.9 20.1 Y 15
JVC RS35 9.9 20.1 Y 15
Optoma HD8600** 11.2 14 Y 4.9
Planar PD8150* 13.4 17.4 Y 29
Sony VPL-VW85 10.1 16.3 Y 7.5
Vivitek H9080FD 13.4 17.4 Y 9.8

* Planar PD8150 - is interesting in that the lens shift is unequal. It can be placed higher above the screen top, than it can be lower, below the bottom.

** The Optoma HD8600 can be placed up to 4.9 inches above the top of the screen surface, but only down to 14.9 inches above the bottom of the screen.

*** The InFocus SP8602 has the most unusual lens shift. The top number shown is correct, the SP8602 can be placed that far above the top of the screen. What is weird is that the lens can only be placed from that height, down to the top of the screen surface, but not below. So you can not have the InFocus SP8602 mounted, say a foot below the top of the screen. All the other projectors with lens shift would work there.

Note: All numbers above are approximate. Throw distances should be accurate within about one inch. In terms of Maximum shift, and especially the amount of shift (offset) on projectors without adjustable lens shift, we have found that manufacturers often make errors!

We recommend you double check the numbers with the manufacturer's tech support, for accurate lens shift numbers. (At least two of these manufacturers show conflicting information in their brochures, compared to their manuals, on at least one model.

For your convenience, below, the home theater projectors are organized first by price class, then by amount of placement flexibility. The four categories are:

Greatest Placement Flexibility (excellent zoom range, lens shift)
Good Placement Flexibility (moderately good zoom range, lens shift)
Fair Placement Flexibility (typically limited zoom range, lens shift, there are exceptions)
Poor Placement Flexibility (limited zoom range, no lens shift)

 

None of the projectors listed as Poor can be shelf mounted. Those rated Fair can be shelf mounted, but have very limited range and may not work out in most rooms.

Keep in mind that if you plan to ceiling mount, there isn't that much difference between the four groups, unless ceiling height is an issue, in which case Poor Placement Flexibility projectors may still be a problem as they lack any lens shift.

The key benefit of ceiling mounting is that you can place the projector closer to the screen which often means a brighter image.

Key benefits of shelf mounting include usually easier to get power to the projector (installation time and cost), less audible noise, easier access, generally simpler to install and align.

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