New BenQ HT2150ST (HT1085ST Update) - Page 7 - AVS Forum | Home Theater Discussions And Reviews
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post #181 of 242 Old 02-16-2018, 03:14 AM
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Benq HT2150ST dust blotches on screen

Hello I just finished changing out the bulb in my projector for the first time and everything we going well until i made the stupid move of dusting out my projector with a can air. Now i notice these blotches which i think is dust on the screen. I read online that people recommend breaking down the projector and wiping down the lens. There only one problem i can't seem to find a service guide or a video on breaking down this model projector and i'm not sure if i even need to do that i hoping i could get some assistance directing me in the right direction
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post #182 of 242 Old 02-16-2018, 02:40 PM
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Hey

Hello all,
Is this the closest thing to an owners thread for the 2150st? Just wanted to make sure as 6 pgs in 18 mo. seems slow and this pj just won a Hot Product Award on PJC so I'd figure the forums would be burning up over it. Anyway, I just ordered one and its still on the way so I'm planning my multipurpose living room. I need recommendations for the following:


1. What size screen can this pj support and still cut through ambient light? I'm prob. looking at DIY frame with Elite Gray 3D/5D (anyone have this)
2. Using this with an Oppo UDP-205, anyone have recommendation for HDMI or setup (I know it won't pass 4K so no bandwidth problems)
3. Recommendation for white flush ceiling mount-this is really close to a ceiling fan so I want it to be flat against the ceiling just in case...
4. Anything else I need to know about the setting in menu, color modes, etc.
5. I might be gaming with this but I'm still console shopping...any advice is appreciated if some consoles work better than other with this.


Thanks for your help...
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post #183 of 242 Old 02-16-2018, 04:21 PM - Thread Starter
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Short throw projectors don't have the same sales volume as longer throw models so the threads don't get as long. Since I don't own one I'll leave most of the questions to others.

The one thing I'll address is how big a screen you can use in ambient light. Since ambient light is such a variable it's not really possible to tell someone else how big a screen they can use in their ambient light and still get an image that's satisfactory to them. The best advice on screen size for those with no previous experience with front projection is to experiment at different image sizes on a light colored wall in whatever ambient light you plan to view in. It won't be exactly the same performance you'll get with the screen you plan to use but it will at least give you a rough idea of how ambient light affects a projected image. Just remember that the projector lamp is brightest when new and will lose about 25% of its brightness over the first 500 or so hours of operation, then dim at a much slower rate over the next few thousand hours until it's about 50% as bright as new and ready for replacement. So make sure you pick a screen size that gives you a little safety margin for brightness in anticipation of the lamp slowly dimming as it ages.
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post #184 of 242 Old 02-16-2018, 05:42 PM
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Are you sure you want to hang it from the ceiling? Most people with short throw projectors use it on a table, or cabinet like I do. I pulled a tv stand from the 1080's out of storage, took the backing board off, and throw the image out the back. No installation or moving of fans for me.
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post #185 of 242 Old 02-18-2018, 07:12 AM
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thanks

Quote:
Originally Posted by Mr Bigins View Post
Are you sure you want to hang it from the ceiling? Most people with short throw projectors use it on a table, or cabinet like I do. I pulled a tv stand from the 1080's out of storage, took the backing board off, and throw the image out the back. No installation or moving of fans for me.
The only problem with shelf mounting is that much of my projected light would end up on my (white) ceiling...washing out the image. With angular reflective screens and an extreme angled pj (short throw), it makes the most sense to ceiling mount as the light spills onto my dark floor...plus, angular reflective screens are designed for ceiling mounted pjs.

Its similar logic but in reverse for UST pjs and ALR screens which need to be mounted low and reflect light back the same direction.

Should hot spotting be better, worse or the same for a shorter throw pj...I'd think more of a problem. I've got a ton of screen samples, unfortunately, they won't tell me anything about hot spotting unless you have someone move them around quickly, and even then its an iffy method to tell about hot spotting. (I'm thinking about Elite Cinegray 5D for the added brightness but worried about getting a spotlight effect in the center)
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post #186 of 242 Old 02-26-2018, 11:03 AM
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Quote:
Originally Posted by roxus159 View Post
Hello I just finished changing out the bulb in my projector for the first time and everything we going well until i made the stupid move of dusting out my projector with a can air. Now i notice these blotches which i think is dust on the screen. I read online that people recommend breaking down the projector and wiping down the lens. There only one problem i can't seem to find a service guide or a video on breaking down this model projector and i'm not sure if i even need to do that i hoping i could get some assistance directing me in the right direction
Hello roxus159,

There is a way of cleaning described here : https://www.avsforum.com/forum/68-dig...ust-blobs.html

Read spencerthomass's post for BenQ W1070.
It must be very similar with the BenQ HT2150ST.

Keep us informed.

Bye.


Last edited by skate; 02-26-2018 at 12:56 PM.
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post #187 of 242 Old 02-26-2018, 03:20 PM
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Your bulb story did it. I just ordered a replacement lamp & housing from BenQ for my 2150st. It dropped $50 to $199(free fedX ground). Really like that I could use my Amazon billing info, made ordering a snap.

It was a pain when my bulb went out on my 1080st. If you can, replace lamps/bulbs before they explode.
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post #188 of 242 Old 02-27-2018, 07:24 AM
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@ roxus159

so more dust?
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post #189 of 242 Old 03-29-2018, 06:28 AM
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What mode and picture settings are y'all using for this projector?
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post #190 of 242 Old 05-13-2018, 06:10 AM
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is someone has the technical manual or a link to access it ?
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post #191 of 242 Old 05-22-2018, 07:12 PM
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Hello

Any calibration settings for this flame thrower out yet? I tried a google search to no avail. Just got one about a week ago.

Also, any Bare Lamp recommendations? I'm a risk taker...
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Last edited by ace5000; 05-22-2018 at 07:25 PM.
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post #192 of 242 Old 06-02-2018, 02:31 PM
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The guy that did this in depth review, posts his calibration settings in the comments near the bottom. You have to scroll down to the Share section and his calibration post is #7 . I use it.

https://hometheaterhifi.com/reviews/...jector-review/
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post #193 of 242 Old 06-12-2018, 11:04 AM
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Thought I would share my setup, in a 12'x11' room. 150" wall projected.
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post #194 of 242 Old 06-25-2018, 08:59 PM
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What screens have people been using with this projector?

Was leaning towards the STT-169120-WAB Silver Ticket 120" Diagonal, Thin Bezel 16:9 Widescreen 4K Ultra HD (6 Piece Fixed Frame) Projector Screen, Woven Acoustic with Backing... but it has a gain of 1.1 and the walls and ceiling are white.

Oh, and the projector will be mounted on the ceiling.....

We do have a few can lights but will be going with programmable dimmers.

IF not, then just take the route with the ST grey or HC grey? Just want to make the best decision.
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post #195 of 242 Old 06-29-2018, 08:24 AM
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Hello All,


My HT2150ST is going back under warranty and am waiting for a replacement. Actually they are shipping the replacement out first because I gave them a CC to hold.



The issue is the same as someone else posted earlier, poor focus uniformity.


When focused on print in the middle of the screen, the focus is off on the Left and Right of the screen, by quite a bit. The customer service rep said this has been seen before in units that have been dropped. I have to say my experience with Benq customer service has been excellent as the rep. was understanding, kind and courteous, a rarity these days!


My initial impressions were not that great perhaps because of this issue. I'll report back when I get the replacement.
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post #196 of 242 Old 06-29-2018, 12:02 PM
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Quote:
Originally Posted by nlash View Post
I'm having issues with getting the bottom left and right corners to not be blurry. It's not crazy blurry, but the pixels are clearly less sharp than they are in the center and top left/right.

Is that normal with this projector or short-throw projectors in general? The projector seems otherwise mostly centered and square when I pop up the test screen. I'm not using any zoom or keystone adjustment.

Same issue here. See post 195. Thanks.
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post #197 of 242 Old 07-02-2018, 06:43 AM
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Quote:
Originally Posted by ace5000 View Post
Same issue here. See post 195. Thanks.
Huh, let me know when you get the new unit if it's better. I had basically convinced myself that it was just the nature of short-throw projectors.
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post #198 of 242 Old 07-02-2018, 08:27 AM - Thread Starter
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It's the nature of shorter throw lenses that it's more difficult to produce a consistent image from edge to edge than with a longer throw model. Short throw lenses tend to cost more because it's more difficult to produce one that produces a consistent image. This issue is most obvious in ultra short throw (UST) projectors. There are also variations from one sample of a given projector model to the next due to differences in manufacturing tolerances. In general the BenQ short throw lens performance has been rated as well above average.
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post #199 of 242 Old 07-02-2018, 10:59 AM
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Quote:
Originally Posted by nlash View Post
Huh, let me know when you get the new unit if it's better. I had basically convinced myself that it was just the nature of short-throw projectors.
The Benq service rep. did not say it say this focus uniformity issue is normal. Again, he said the focus issue could be indicative of the unit being dropped.

I have had many projectors in the $1k range over the years, and have never seen this before and it bothered me. Even with 640x480 machines. Also, I would say this is more of a medium throw, as it is 5' 6" away with a 105" screen.

We will see any day now as the replacement is en route. I hope to see an improvement, if not I'll probably keep it anyway until I can afford a shorter throw in 4K.

Last edited by ace5000; 07-02-2018 at 12:48 PM.
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post #200 of 242 Old 09-30-2018, 08:09 PM
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Just want to check in here and say that my 2150st is still going strong after two years of almost daily use! Haven't had any issues with fuzzy corners, etc...

Loving this thing!

SB
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post #201 of 242 Old 12-01-2018, 05:45 AM
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I will use it to watch movies, the catches that I see the games look great but the movies do not so much. Do the movies look good? Do the games look good like the movies?

forgive my English, I do not speak English well. I use a translator
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post #202 of 242 Old 12-01-2018, 12:47 PM
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Quote:
Originally Posted by birdmanradio View Post
I will use it to watch movies, the catches that I see the games look great but the movies do not so much. Do the movies look good? Do the games look good like the movies?

forgive my English, I do not speak English well. I use a translator
i have on, like it; worth getting but there's a perpetual rumor that there's a 4k version going ot announced at CES next month, so id wait a bit
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post #203 of 242 Old 12-01-2018, 01:02 PM - Thread Starter
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Quote:
Originally Posted by birdmanradio View Post
I will use it to watch movies, the catches that I see the games look great but the movies do not so much. Do the movies look good? Do the games look good like the movies?

forgive my English, I do not speak English well. I use a translator
Projectorcentral.com rated the HT2150ST very good for both gaming and movies:

projectorcentral.com/benq-ht2150st-projector-review.htm
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post #204 of 242 Old 12-02-2018, 02:17 AM
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Quote:
Originally Posted by swarm87 View Post
i have on, like it; worth getting but there's a perpetual rumor that there's a 4k version going ot announced at CES next month, so id wait a bit
Thank you for your answers

So the movies look very good? Dark movies (alien 1979, Gravity 2013, etc) that look like? the blacks are correct?

the short throw projectors cost more money and if it is 4k more, maybe double as the HT2150ST.

I live in Europe, here this HT2150ST is called W1210ST, I will build the projector W1210ST. they say it's exactly the same.
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post #205 of 242 Old 12-02-2018, 06:25 AM
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Quote:
Originally Posted by birdmanradio View Post
Thank you for your answers

So the movies look very good? Dark movies (alien 1979, Gravity 2013, etc) that look like? the blacks are correct?

the short throw projectors cost more money and if it is 4k more, maybe double as the HT2150ST.

I live in Europe, here this HT2150ST is called W1210ST, I will build the projector W1210ST. they say it's exactly the same.
i dont have gravity or anything to compare it to(my first projector) but when i watched alien, passengers, serenity, killjoys, starwars, the blacks looked good to my eyes. I have a 1.1 gain elite screens spectrum tab tensioned screen and am using the settings from home theater hifi's review only i took the red saturation down a few notches and use eco mode on the lamp;
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post #206 of 242 Old 12-02-2018, 10:46 AM - Thread Starter
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Yes, it's the W1210ST outside of North America. You can read in the professional reviews that most DLP projectors have similar black levels.
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post #207 of 242 Old 12-02-2018, 05:06 PM
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Installed a 2150st recently and had to move it back a few inches today. Got it pretty close. Zoomed it out past the screen by a hair. No keystone. Angled ceiling but the mount I'm using is pretty nice. Kanto P301. Will deal with cord management after I get a flat HDMI cord and replace the white screen material with a grey one. Love the projector despite getting it used on eBay with 1100 hours.
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post #208 of 242 Old 12-04-2018, 01:28 PM
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Thanks for your answers, if blacks and colors look good in movies I buy it

At 3 or 3.1 meters viewing distance 120" is perfect?
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post #209 of 242 Old 12-04-2018, 01:58 PM
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Quote:
Originally Posted by Mr Bigins View Post
The guy that did this in depth review, posts his calibration settings in the comments near the bottom. You have to scroll down to the Share section and his calibration post is #7 . I use it.

https://hometheaterhifi.com/reviews/...jector-review/

Brief report. I've had this for about 4 months in a room full of windows, that is rarely in direct sunlight, and it does well for college football. I just remodeled the room and the ceiling and walls are white and there are no shades yet, so it's a temporary, far from ideal, location for this. I tweaked the above calibrations for daytime use and named it "Football", and I use "Cinema" or the above "Cal" settings for movies or TV at night. I'm running everything thru an XBOX One S, including a Hauppage USB TV Tuner for the XBOX. I love the projector for the price overall. If BENQ has a good price point for the 4K version, I'd try that too maybe, but I'm not sure my eyes could appreciate 4k from 12', at least without a Lasek tune-up
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post #210 of 242 Old 12-04-2018, 06:15 PM
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Quote:
Originally Posted by birdmanradio View Post
Thanks for your answers, if blacks and colors look good in movies I buy it

At 3 or 3.1 meters viewing distance 120" is perfect?
is sit like 2.7 meters away from a 100" its like an imax with atmos
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