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BenQ W1070 : DLP Full HD, 3D Ready with lens-shift for 1000$ - Page 63

post #1861 of 8472
Quote:
Originally Posted by Singh007 View Post

Just a quick question...when i get my 3d glasses, can i just simply stream any 3d content (youtube, 3d visoin etc) , from my laptop, and it will come as 3D? Do i need any special requirements on my laptop?

Your laptop's video card or chipset has to be capable of displaying 3d images.
post #1862 of 8472
Quote:
Originally Posted by nappers View Post

Wow, you sent yours back? How come? I was thinking of doing the same thing. Yes I did notice that HDMI slot 2 was slightly better than HDMI slot 1. Strange how that is and says it's not a good build to me.

Yes, when shutting down, it takes a bit for it to actually go off. I thought it was just a cooling down period of some kind. Is that a problem?

I wondering now if I should return this unit and get the Epson 3020 instead.
Okay...so I'm not the only one! MY HDMI 1 does not even activate. I'm currently using HMDI 2. HDMI 1 never finds the signal. Crap...the picture on this thing is amazing. I don't want to send it back...lol. I will do more HDMI testing over the weekend!
post #1863 of 8472
Quote:
Originally Posted by rgtaa View Post

Well, it would help if you used the same blu ray movie and player you used with the pro8200. I had no problems with that movie on my pro8200, so I'm just trying to find out if it was your Blu ray player, that was the problem or something else. Use standard out of the box settings on the benq , since that is what you used with the pro8200, right? Thanks for testing.
Okay...so I checked out the Dark Knight Rises last night and there is definitely a difference. Spoiler Alert:p (if you haven't see this movie yet you've got to get with it LOL)

In the beginning of the movie where they are honoring Harvey Dent...this was a very dark scene and on the VS pro8200 it was very hard to make out details in the suits of the characters. On the benq w1070 I can clearly make out lapels and buttons and other lines in the suit jackets. Again, this is straight out of the box settings with no tweaking on the w1070. RGB settings were dialed on my bluray player and on the pro8200. I had to make changes to my "standard" settings just to get shadow detail that just wasn't there. The movie Avengers is where I noticed the difference right away, especially in the beginning. I watched this movie a lot trying to get the image right on the pro8200 so, a lot of the dark scenes were fresh in my mind. Hope this helps..
post #1864 of 8472
Quote:
Originally Posted by JoeBoy73 View Post

Okay...so I checked out the Dark Knight Rises last night and there is definitely a difference. Spoiler Alert:p (if you haven't see this movie yet you've got to get with it LOL)

In the beginning of the movie where they are honoring Harvey Dent...this was a very dark scene and on the VS pro8200 it was very hard to make out details in the suits of the characters. On the benq w1070 I can clearly make out lapels and buttons and other lines in the suit jackets. Again, this is straight out of the box settings with no tweaking on the w1070. RGB settings were dialed on my bluray player and on the pro8200. I had to make changes to my "standard" settings just to get shadow detail that just wasn't there. The movie Avengers is where I noticed the difference right away, especially in the beginning. I watched this movie a lot trying to get the image right on the pro8200 so, a lot of the dark scenes were fresh in my mind. Hope this helps..

Thanks for checking that out. I didn't have a problem with those movies, that is why I was wondering if it was the pro8200 or the blu ray player. I know some blue ray players have to be set up right to get good picture with the pro8200. Anyway, have fun with your NEW Benq, it is good price for 3D PJ. The pro8200 has been out a lot longer than this benq, so the bugs were fixed by the time you bought it. But the Benq you are buying at beginning of cycle,and you might have to deal with those early adopter issues.
post #1865 of 8472
700+ hours on 1.02 so far. Couldn't be happier.
post #1866 of 8472
Quote:
Originally Posted by mekret View Post

700+ hours on 1.02 so far. Couldn't be happier.

LOL! You only had the PJ about 2 months and you have 700 hours plus on it. That is around 10 hours a day. Crap!
I guess this PJ doesn't have problems with being turned on all day.
You are enjoying your PJ , much too much. smile.gif
post #1867 of 8472
Quote:
Originally Posted by rgtaa View Post

LOL! You only had the PJ about 2 months and you have 700 hours plus on it. That is around 10 hours a day. Crap!
I guess this PJ doesn't have problems with being turned on all day.
You are enjoying your PJ , much too much. smile.gif

Lol I use it watch movies, tv and browse the internet, so yeah it gets a lot of use. smile.gif
post #1868 of 8472
Seems about right, I think it would take about 700 hours to read this thread now.....

I have about 120 hours on mine, all movies and Call of Duty and I couldnt be happier. I have said it before, but if you are just coming into this thread the input lag time on this PJ is incredible, my k/d is almost double what it was on my 3 lcd projection tv. And playing COD on a 130" screen, although not ideal (most players play best on a small screen ~24"s ) it is just to cool not to do...

I have 1.02 version of firmware and NO fan, hdmi, or flickering problems. My setup is a PS3 and FIOS cable box running through a Denon 3312ci reciever w/ Klipsch reference 5.1 and a 130" 16:9 Jamestown screen, all in the man cave with dark walls and light ceiling and rug. I have been watching all the IMAX 3d movies, prometheus, avatar, tangled, brave in 3d and lots of other 2d blurays. I have the saisonics and the 3dTV glasses. Just got Abraham Lincoln, vampire slayer in 3D from the library for tonight....

Lastly, if you are on the fence, I can guarantee that you will be kicking yourself for waiting when you finally break down and get this PJ.
post #1869 of 8472
Quote:
Originally Posted by awest74 View Post

Seems about right, I think it would take about 700 hours to read this thread now.....

I have about 120 hours on mine, all movies and Call of Duty and I couldnt be happier. I have said it before, but if you are just coming into this thread the input lag time on this PJ is incredible, my k/d is almost double what it was on my 3 lcd projection tv. And playing COD on a 130" screen, although not ideal (most players play best on a small screen ~24"s ) it is just to cool not to do...

I have 1.02 version of firmware and NO fan, hdmi, or flickering problems. My setup is a PS3 and FIOS cable box running through a Denon 3312ci reciever w/ Klipsch reference 5.1 and a 130" 16:9 Jamestown screen, all in the man cave with dark walls and light ceiling and rug. I have been watching all the IMAX 3d movies, prometheus, avatar, tangled, brave in 3d and lots of other 2d blurays. I have the saisonics and the 3dTV glasses. Just got Abraham Lincoln, vampire slayer in 3D from the library for tonight....

Lastly, if you are on the fence, I can guarantee that you will be kicking yourself for waiting when you finally break down and get this PJ.


Which glasses do you prefer between the two and why?
post #1870 of 8472
Quote:
Originally Posted by JoeBoy73 View Post

Okay...so I'm not the only one! MY HDMI 1 does not even activate. I'm currently using HMDI 2. HDMI 1 never finds the signal. Crap...the picture on this thing is amazing. I don't want to send it back...lol. I will do more HDMI testing over the weekend!

Wow! The HDMI 2 works a bit better but really neither HDMI slot holds the cable firmly and sturdy.
I know, I am on the fence too since the picture is great.

I just called Benq and talked to rep. They didn't sound too knowledgeable and said he would suggest that I send the unit back and ask for another one, even though Newegg offered me $30 just to keep it (LOL). The rep at Benq also said he would have to pass me on to another "higher level tech" to answer any of these questions (HDMI, losing the signal, etc.).

Not sure what to do at this point.
post #1871 of 8472
Quote:
Originally Posted by mastermaybe View Post

yes, I'm finding that I cannot get an image SMALL enough without incorporating a ceiling mount to position the PJ closer to the screen. I wasn't expecting these issues at ~10'.

My screen will be about about 10 1/2' from my back wall...where I'd have the shelf mounted. Is my understanding that the PJ to screen distance is calculated from the REAR of the PJ? That makes it more difficult still, if true.

I'm looking for an 82-84" screen and it's telling me I'd have to be 9' away. I REALLY would rather simply place a shelf back there than a mount...for cost, aesthetics and ease of portability when I want to watch a game or movie outside this summer.

And just so I understand: the PJ MUST be placed 2" above or below the screen?

Oh...AND I'll have to place it upside down on the shelve?

Wow, what a placement nightmare.

thanks

James

For an entry-level projector the W1070 offers a lot feature-wise. While just about all previous entry-level DLP projectors had no lens shift, the W1070 does offer a very modest adjustment range. Also it's 1.3x zoom is typical (or just a little better) than most entry level DLP models. BenQ has just announced (at the ISE show in Europe) what appears to be the next new models above the W1070. These are the W1400 and the W1500, which appear to be the same expect the W1500 has wireless HDMI. The W1400 will probably sell for around $1500 (street price) when the US model is introduced (price nor shipping date in USA have yet been announced but they will probably being shipping in 2 to 3 months from now). These new models will have a longer range 1.6x zoom instead of the 1.3x on the W1070. They appear to use the same DLP (DMD) DC3 chip as the W1070 and it does seems they have a few features beyond those found on the W1070. If you are not in a hurry and are will willing to spend more $$, then you may want hold off until full info and prices are available for this new models.

As for the W1070, its spec. sheet lists the "throw ratio" range as 1.15 to 1.5. Throw ratio is normally the: Throw Distance / Image Width

Throw distance is measured from the front the lens to the screen and image width is typically a couple of inches wider than then viewable width of the screen in order to allow for a little overscan of the image onto the screen's black border. The diagrams in the owner's manual correctly show the 'throw distance' as being measured from the front of the projector lens to the screen.

If you are wanting to use an 84 inch diagonal 16 x 9 screen then it will have a viewable width of about 72 inches, so let's assume an image width of 74 inches to allow a little overscan. In this case the projector's zoom will support a throw distance as short as 1.15 x 74 = 85 inches and long as 1.5 x 74 = 111 inches (or more like 108 inches if you do not allow any overscan on an 84 inch diagonal screen).

So if your room is 10.5 ft. (126 inches) long and you were to place the projector inverted on an 18 inch wide sheft at the rear of the room (or use a ceiling mount), then if the projector's lens is positioned even with the front edge of the shelf where it would have 126 - 18 = 108 inch throw distance to the opposite wall, which should be just in the range supported by this projector. Again this is using the throw ratio values that BenQ has published in the spec. sheet and the charts in the owner's manual for this projector and not using their online setup calculator. As for the vertical mounting position, the info in the owner's manual is not consistent between the various charts and tables. However, it does appear based on owner's comments that it must be mounted just a few includes above the top edge of the screen (when ceiling mounted).
Edited by Ron Jones - 2/1/13 at 4:27pm
post #1872 of 8472
Quote:
Originally Posted by Keith AP View Post

Just curious, are you running the projector in "High Altitude" mode when you encounter the overheat problem?

I wasn't at the time as i,m only at 1700ft. I turned on the high elevation setting, changed to a dedicated outlet and also removed a piece of clear plastic sheeting covering access to the lamp (not the access door), seems to be running fine for the last 2 hours.
post #1873 of 8472
Quote:
Originally Posted by Ron Jones View Post

For an entry-level projector the W1070 offers a lot feature-wise. While just about all previous entry-level DLP projectors had no lens shift, the W1070 does offer a very modest adjustment range. Also it's 1.3x zoom is typical (or just a little better) than most entry level DLP models. BenQ has just announced (at the ISE show in Europe) what appears to be the next new models above the W1070. These are the W1400 and the W1500, which appear to be the same expect the W1500 has wireless HDMI. The W1400 will probably sell for around $1500 (street price) when the US model is introduced (price nor shipping date in USA have yet been announced but they will probably being shipping in 2 to 3 months from now). These new models will have a longer range 1.6x zoom instead of the 1.3x on the W1070. They appear to use the same DLP (DMD) DC3 chip as the W1070 and it does seems they have a few features beyond those found on the W1070. If you are not in a hurry and are will willing to spend more $$, then you may want hold off until full info and prices are available for this new models.

As for the W1070, its spec. sheet lists the "throw ratio" range as 1.15 to 1.5. Throw ratio is normally the: Throw Distance / Image Width

Throw distance is measured from the front the lens to the screen and image width is typically a couple of inches wider than then viewable width of the screen in order to allow for a little overscan of the image onto the screen's black border. The diagrams in the owner's manual correctly show the 'throw distance' as being measured from the front of the projector lens to the screen.

If you are wanting to use an 84 inch diagonal 16 x 9 screen then it will have a viewable width of about 72 inches, so let's assume an image width of 74 inches to allow a little overscan. In this case the projector's zoom will support a throw distance as short as 1.15 x 74 = 85 inches and long as 1.5 x 74 = 111 inches (or more like 108 inches if you do not allow any overscan on an 84 inch diagonal screen).

So if your room is 10.5 ft. (126 inches) long and you were to place the projector inverted on an 18 inch wide sheft at the rear of the room (or use a ceiling mount), then if the project's lens is positioned even with the front edge of the shelf where it would have 126 - 18 = 108 inch throw distance to the opposite wall, which should be just in the range supported by this projector. Again this is using the throw ratio values that BenQ has published in the spec. sheet and the charts in the owner's manual for this projector and not using their online setup calculator. As for the vertical mounting position, the info in the owner's manual is not consistent between the various charts and tables. However, it does appear based on owner's comments that it must be mounted just a few includes above the top edge of the screen (when ceiling mounted).

thanks for this...I am ignorant re much of this and didn't mean to bash on the 1070...just that I was more disappointed than anything else.

Mr room is really about 14' deep, but my screen will going in FRONT of all my existing gear, so 3-4 feet off the front wall. And I came up with your numbers as well...about 9' max away for an 84" screen...unfortunately that likely won't work for me without an obnoxiously long/deep shelf (like you noted), but I'll measure again when I get home.



thanks again, hopefully I can work this out...

James
post #1874 of 8472
Just got mine in the mail today, firmware 1.03 but I don't have the fan issues on shutdown. Projecting onto a 106" elunevision elara II perlux-silver 1.4 gain screen. I feel like I may have mounted on the ceiling about an inch off center since I can't seem to get everything perfect but it's very close. Focus is not as sharp in the bottom right as I have it set for the center but that's likely my mounting situation not being 100% perfect. Anyway thought I'd upload a photo.

post #1875 of 8472
Quote:
Originally Posted by empinball View Post

I wasn't at the time as i,m only at 1700ft. I turned on the high elevation setting, changed to a dedicated outlet and also removed a piece of clear plastic sheeting covering access to the lamp (not the access door), seems to be running fine for the last 2 hours.

Yeah, I'm at 1500' but I switched to "High Altitude" worrying a bit about the heat buildup. I haven't seen any problems on the high altitude setting - and haven't run very long without it to know if I would have an overheating problem that you experienced. Sure do like the relative "quietness" of the low setting.

What are you other guys doing as far as this setting? Anyone running without "High Altitude" for extended periods without overheat problems? If so, what's your projector setup like; basement, attic, open shelf, hush-box, etc.
post #1876 of 8472
Quote:
Originally Posted by mastermaybe View Post

thanks for this...I am ignorant re much of this and didn't mean to bash on the 1070...just that I was more disappointed than anything else.

Mr room is really about 14' deep, but my screen will going in FRONT of all my existing gear, so 3-4 feet off the front wall. And I came up with your numbers as well...about 9' max away for an 84" screen...unfortunately that likely won't work for me without an obnoxiously long/deep shelf (like you noted), but I'll measure again when I get home.

thanks again, hopefully I can work this out...

James

At 9 ft distance, 1.15 throw ratio gets you a 93.91 inch wide screen = 107.75 inch diagonal
At 9 ft distance, 1.50 throw ratio gets you a 72.00 inch wide screen = 82.6 inch diagonal

Projector has a depth of almost 10 in, and you measure from the lens to screen (so subtract, 10+ additional wiring space from total length - 10.5 ft= 126 in - 15in (shelf depth) = 111 in = 9 ft 3 in). Extremely doable from a math perspective.

I am trying to get the biggest screen possible with all the room limitations that I have - install distance - upto 10.5 ft - projector space requirements, with a seating position of 20 ft (second room with pillars in between). This projector gives me what I am looking for without spending a fortune. I have not committed to buying yet though. Still in analysis paralysis mode.
post #1877 of 8472
I (logically so I thought) assumed the throw distance from PJ to the screen would start at the lens, but then on the benq calculator page it clearly states that the distance starts at the REAR of the projector with 'mirror type' PJs.

Of course I hope it is (and I am) wrong. Normally this wouldn't be a big deal of course, but I'm right on the edge.

Just measured, btw, im actually 11.5' from the back wall, so it's looking like an 80+" screen is completely out of the question with me...mounted on the back wall anyway. I could move the screen up but it's already so close. Sigh.

James
Edited by mastermaybe - 2/1/13 at 2:05pm
post #1878 of 8472
Quote:
Originally Posted by Frisbee23 View Post

Just got mine in the mail today, firmware 1.03 but I don't have the fan issues on shutdown. Projecting onto a 106" elunevision elara II perlux-silver 1.4 gain screen. I feel like I may have mounted on the ceiling about an inch off center since I can't seem to get everything perfect but it's very close. Focus is not as sharp in the bottom right as I have it set for the center but that's likely my mounting situation not being 100% perfect. Anyway thought I'd upload a photo.

Looks great....I have decent SLR, but I cannot get my pics to come out like THAT! LOL....beautiful picture!
post #1879 of 8472
Hi Everybody!

I'm new to this forum, I'm writing from Hungary!
I've bought this PJ about 3 weeks ago, and I had a lot of problems with it since then...
I'm wondering if anyone had these problems to:

1., My lamp just died after 20 hours of use... The service changed it, but I had to wait for it a week or so
2., During that short of time 3 blury grey spots appeared on the screen, got some dust on the inner lense frown.gif
3., I finally got back my PJ, they said that the dust is normal, I'll have more in the future, they don't recommend me to have it cleaned this early.
4., And again after 30 hours of use, the grey dots multiplied... and the lamp died again frown.gif((

Now I'm waiting again, but now for a new PJ, they promised to have Benq send me a new unit!
I've been told that the Benq HQ in Taiwan wanted them to send back the lamp ( all 2) because it might have been a manufacturing problem...

Is the dust appearing so early normal by the way?
It was very annoying during dark sceenes...
post #1880 of 8472
NewEgg sale W1070 just deliverd. Dec 2012, F/W 1.02. be a couple of days before it's set up
post #1881 of 8472
Just ordered my W1070 from Visual Apex since they are guaranteeing 1.04 cool.gif This will be my first projector and I can't be more excited! I will post updates here as I go!
post #1882 of 8472
Quote:
Originally Posted by mastermaybe View Post

I (logically so I thought) assumed the throw distance from PJ to the screen would start at the lens, but then on the benq calculator page it clearly states that the distance starts at the REAR of the projector with 'mirror type' PJs.

Of course I hope it is (and I am) wrong. Normally this wouldn't be a big deal of course, but I'm right on the edge.

Just measured, btw, im actually 11.5' from the back wall, so it's looking like an 80+" screen is completely out of the question with me...mounted on the back wall anyway. I could move the screen up but it's already so close. Sigh.

James
Can anyone confirm whether the throw distance for the w1070 is measured from the back of the projector or from the front lens? I too am right on the edge...

Ken
post #1883 of 8472
Quote:
Originally Posted by mastermaybe View Post

I (logically so I thought) assumed the throw distance from PJ to the screen would start at the lens, but then on the benq calculator page it clearly states that the distance starts at the REAR of the projector with 'mirror type' PJs.

Of course I hope it is (and I am) wrong. Normally this wouldn't be a big deal of course, but I'm right on the edge.

Just measured, btw, im actually 11.5' from the back wall, so it's looking like an 80+" screen is completely out of the question with me...mounted on the back wall anyway. I could move the screen up but it's already so close. Sigh.

James

In the W1070 Owner's Manual it clearly shows that throw distance is measured from the front of the lens to the screen and this is the normal definition of throw distance. As for your above statement that a "80+ screen is completely out the question", your problem with your throw distance is that the smallest screen you could use from your approx 9 ft. throw distance is about an 84 inch screen. However you could use a larger screen. For example a 100 inch (diagonal) screen can be used with as short as a 100 inch throw distance. This is based on the table on page 16 of the owner's manual.
Edited by Ron Jones - 2/1/13 at 4:57pm
post #1884 of 8472
I received my W1070 today and set it up to test. This is my first DLP and thought they were immune to alignment issues as theres just one chip.
The right side of this one seems to be out of whack. The center and left side are OK but aren't perfect. Is anyone else seeing this?

Right Side-

http://snapper.smugmug.com/Other/benq-w1070/i-RzfNMWj/0/X2/DSC_4844right2-X2.jpg

Center-

http://snapper.smugmug.com/Other/benq-w1070/i-4rbwknS/0/X2/DSC_4846center2-X2.jpg

Left Side-

http://snapper.smugmug.com/Other/benq-w1070/i-kWggcJh/0/X2/DSC_4848left2-X2.jpg
post #1885 of 8472
Quote:
Originally Posted by Ron Jones View Post

In the W1070 Owner's Manual it clearly shows that throw distance is measured from the front of the lens to the screen and this is the normal definition of throw distance. As for your above statement that a "80+ screen is completely out the question", your problem with your throw distance is that the smallest screen you could use from your approx 9 ft. throw distance is about an 84 inch screen. However you could use a larger screen. For example a 100 inch (diagonal) screen can be used with as short as a 100 inch throw distance. This is based on the table on page 16 of the owner's manual.

My problem is that I cannot create an image small enough from 10+ feet with this PJ. It's ok, I'll work around it.

I realize this that an 84" screen is not out of the question, I just preferred to mount it on the rear wall rather than from my 7' ceiling. Any larger screen creates problems in my room for a few reasons I won't bother everyone else with.

Great to hear about the throw distance being from the lens...that was my inclination, and I should have ignored the note on the calc page.

James
Edited by mastermaybe - 2/1/13 at 5:48pm
post #1886 of 8472
Quote:
Originally Posted by mikesnapp View Post

I received my W1070 today and set it up to test. This is my first DLP and thought they were immune to alignment issues as theres just one chip.
The right side of this one seems to be out of whack. The center and left side are OK but aren't perfect. Is anyone else seeing this?

Right Side-

http://snapper.smugmug.com/Other/benq-w1070/i-RzfNMWj/0/X2/DSC_4844right2-X2.jpg

Center-

http://snapper.smugmug.com/Other/benq-w1070/i-4rbwknS/0/X2/DSC_4846center2-X2.jpg

Left Side-

http://snapper.smugmug.com/Other/benq-w1070/i-kWggcJh/0/X2/DSC_4848left2-X2.jpg

The center and left look like chromatic aberration in the lens. I would expect a little of that in such an inexpensive projector. As for the right, it looks more blurred. Are you certain than your projector lens path is absolutely perpendicular to the screen?
post #1887 of 8472
Quote:
Originally Posted by mastermaybe View Post


My problem is that I cannot create an image small enough from 10+ feet with this PJ. It's ok, I'll work around it.

I realize this that an 84" screen is not out of the question, I just preferred to mount in on the rear wall rather than from my 7' ceiling. Any larger screen creates problems in my room for a few reasons I won't bother everyone else with.

Great to hear about the throw distance being from the lens...that was my inclination, and I should have ignored the note on the calc page.

James

In looking at the BenQ online calculator I don't believe it is showing where the measurement for throw distance starts and ends in any sort of meaningful way in the graphic and I see no text that indicates the back of the projector is used rather than the lens. I does indicate that with a 9 ft. throw distance screen sizes between 84" and 108" can be used and this is consistent with the table on page 16 of the owner's manual.
post #1888 of 8472
Quote:
Originally Posted by mikesnapp View Post

I received my W1070 today and set it up to test. This is my first DLP and thought they were immune to alignment issues as theres just one chip.
The right side of this one seems to be out of whack. The center and left side are OK but aren't perfect. Is anyone else seeing this?

Right Side-

http://snapper.smugmug.com/Other/benq-w1070/i-RzfNMWj/0/X2/DSC_4844right2-X2.jpg

Center-

http://snapper.smugmug.com/Other/benq-w1070/i-4rbwknS/0/X2/DSC_4846center2-X2.jpg

Left Side-

http://snapper.smugmug.com/Other/benq-w1070/i-kWggcJh/0/X2/DSC_4848left2-X2.jpg
Looks like certain W1070 has the same problem as the W1080ST.
post #1889 of 8472
Quote:
Originally Posted by elmermccurdy View Post

The center and left look like chromatic aberration in the lens. I would expect a little of that in such an inexpensive projector. As for the right, it looks more blurred. Are you certain than your projector lens path is absolutely perpendicular to the screen?

Yes, its perfectly square at all four corners. Geometry is right on. Thats as in focus as it gets. Manually focused and shot with a Nikon D4 85mm 1.4 at f5.6
post #1890 of 8472
Quote:
Originally Posted by Ron Jones View Post

In looking at the BenQ online calculator I don't believe it is showing where the measurement for throw distance starts and ends in any sort of meaningful way in the graphic and I see no text that indicates the back of the projector is used rather than the lens. I does indicate that with a 9 ft. throw distance screen sizes between 84" and 108" can be used and this is consistent with the table on page 16 of the owner's manual.

I understand this. Doesn't really help a guy looking for an 84" screen from 10 1/2', however.

Additionally: it states right above the projector selection area: "the projection distance of a mirror-type (DLP I'm assuming) projector is calculated from the screen to the back of the projector".

I don't really care honestly, at this point; it's clear this pj won't work perfectly for me, but I can make it work...that's all I'm really concerned with.

James
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