The Offical Epson 8350 Owners Thread - Page 305 - AVS Forum | Home Theater Discussions And Reviews
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post #9121 of 9127 Old 07-20-2015, 08:30 AM
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Originally Posted by Protonus View Post
I thought that quote you (mis)quoted (wasn't attributed to me) sounded familiar... searched, yeah, that's what I wrote lol.

I stand by my original comment, but will expand on it for you...
Awesome. Thanks for taking the time to go more in depth.

I have a fully light controlled room, and thus I do not need a light cannon. The main annoyance of the DT-510 is the (in my opinion) poor black levels, even on eco-mode and high-contrast iris. There's no black, more of a dark blue/grey that I see. I guess I need to go beyond the 8350 level to get what I want.
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post #9122 of 9127 Old 07-20-2015, 08:36 AM
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Originally Posted by Protonus View Post
I'm not sure I'd recommend spraying directly onto the LCD's at all, especially with compressed air cans, as they can spray liquid cyanogen and freeze components. The LCD's aren't the most robust things, and, we have no convergence adjustment on this projector, which means if you misalign one of the LCD's in the process or move it at all, your convergence will be wrong.

I would do as the person you quoted recommends, just spray down thru the slots in the motherboard where the LCD connectors are, from the top. After all you're talking about simply removing dust. Just moving air thru that cavity will dislodge a lot of the dust. Doing anything further is going to require removing the motherboard, which, if you're not comfortable repairing modern electronics, will be intimidating to say the lest. When you spray down that slot, use a straw, and make sure the can is upright, so that it doesn't spray any liquid out.

Or better yet, use a powered air duster like this one (I have this one, and love it. It's a must have IMHO if you own a projector or maintain PC's, great for cleaning filters or anything else): http://www.amazon.com/Metro-Vacuum-E.../dp/B001J4ZOAW
Thanks, you raise some very good points including the potential to mess up the convergence, which as far as i can tell currently is pretty good on mine. I'll check out this blower, makes sense as opposed to the dusters (and seems like it would be really helpful to clean out my PC)
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post #9123 of 9127 Old 07-20-2015, 08:43 AM
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Originally Posted by SilentJ20 View Post
Awesome. Thanks for taking the time to go more in depth.

I have a fully light controlled room, and thus I do not need a light cannon. The main annoyance of the DT-510 is the (in my opinion) poor black levels, even on eco-mode and high-contrast iris. There's no black, more of a dark blue/grey that I see. I guess I need to go beyond the 8350 level to get what I want.
No problem. But yeah, if you don't think the DT-510 has enough blacks, you're really not going to like 8350 then.

That said, it sounds like you might want a gray screen. The DT-510's blacks are actually very good, for an entry level, digital projector. It sounds like you are expecting blacks like you'll get out of an old, analog, 3 CRT projector, which is just not going to happen on a digital projector unless you spend a ton of cash. Digital projectors in general, are sacrificing blacks for resolution and brightness/vibrance.

May also want to try bias lighting (light behind the screen), as well as black velvet borders on your screen.

You might want to look into a higher end 3 DLP chip projector as the replacement.

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Originally Posted by dude2006 View Post
Thanks, you raise some very good points including the potential to mess up the convergence, which as far as i can tell currently is pretty good on mine. I'll check out this blower, makes sense as opposed to the dusters (and seems like it would be really helpful to clean out my PC)
Just be careful when you use it. It's very, very powerful. Have a good grip on it the first time you turn it on!

Harman Kardon AVR 254 ● Energy Connoisseur C-7 ● Epson PowerLite 8350 ● 100" DIY WA DW w/ 80/20 frame
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post #9124 of 9127 Old 07-20-2015, 08:54 AM
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Originally Posted by Protonus View Post
No problem. But yeah, if you don't think the DT-510 has enough blacks, you're really not going to like 8350 then.

That said, it sounds like you might want a gray screen. The DT-510's blacks are actually very good, for an entry level, digital projector. It sounds like you are expecting blacks like you'll get out of an old, analog, 3 CRT projector, which is just not going to happen on a digital projector unless you spend a ton of cash. Digital projectors in general, are sacrificing blacks for resolution and brightness/vibrance.

May also want to try bias lighting (light behind the screen), as well as black velvet borders on your screen.

You might want to look into a higher end 3 DLP chip projector as the replacement.
You're the first person who has given me a good comparison of the DT-510 vs others, so I'm coming to new conclusions. Since most reasonably affordable projectors seem to put out so much light, I'll be looking into a gray screen. I'll also be trying to talk the wife into a budget that allows something in the epson "UB/ultra black" category or similar.

Anyways, don't want to get too off topic in this thread. Thanks for the info.
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post #9125 of 9127 Old 07-24-2015, 12:56 PM
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Hey guys,

I did a search and I've seen a few posts about green spots and multiple white spots, but I've got an issue with a single white spot.

I don't even know if I would call it a white spot, it's just more lit. Almost dead center, top third of the screen; it's like a little flashlight is shining there. It's like it's glowing.

It only happen on straight black screens, like on the no input screen or when HBO Go is loading. I've yet to notice during a movie scene that's dark. All that being said, I'd like to fix it possible. My warranty is up and even if it wasn't, all Epson ever did was send me other faulty projectors. This one held up for 2 months before I noticed this.

Any idea why I'm having this white spot on my image?

Thanks.
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post #9126 of 9127 Old Yesterday, 12:33 PM
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My room:


Please help me understand how to find the optimum throw distance for the 8350 for my 15' x 22'4" room. This is my first projector, and I really hope to get this right the first time.

How important is staying in the "green zone" using the Projector Central calculator?

It looks as if they're recommending a throw distance of 14-18 feet for a 109" image to stay in the green zone. Moving the throw distance slider to below a 14' throw distances takes you into the red zone, "Recommended for image brightness for rooms with ambient light." When they say it that way, it seems kinda bad.

But unless I'm misunderstanding the posts I've been reading here, experts on the forum such as MississippiMan seem to recommend a shorter throw distance to achieve optimum brightness.

As I posted last month, I bought a used projector and 109" 16x9 Elite motorized screen with (I believe) 1.1 gain.

My first row viewing distance will be 11' plus or minus an inch or two depending on exact screen placement. The second row will be ~16', and if I can squeeze it in, an eventual third row "Cinebar" will be about 19 or 20'.

Light is pretty well controlled. Windows in the room have blackout curtains. There is some light coming from an adjacent space where we have not yet hung curtains over the daylight basement entry door and its side light window. We already have blackout curtains for that location, so that problem will soon be fixed. The screen wall and the first four feet of the side walls and ceiling are flat black (Valspar Cracked Pepper). The rest of the room is painted a flat medium gray (Valspar Vessel Gray). The carpet is black. All of the furniture is black.

One concern is whether I would be happy with the 8350's brightness from the 14' throw distance range recommended by the Projector Central calculator.

Another consideration is that I'd like to preserve my option to upgrading to a wider, acoustically transparent screen sometime in the future without having to relocate the projector mount, run longer cables, etc. The AT screen would allow much better center speaker placement and a wider (130"?) image, but it would also shorten the viewing distance to the front row to about 9'. I'm concerned that might be too close for comfort for such a large screen.

I appreciate any suggestions you might have.
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post #9127 of 9127 Old Today, 05:58 AM
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Originally Posted by terd View Post
Hey guys,

I did a search and I've seen a few posts about green spots and multiple white spots, but I've got an issue with a single white spot.

I don't even know if I would call it a white spot, it's just more lit. Almost dead center, top third of the screen; it's like a little flashlight is shining there. It's like it's glowing.

It only happen on straight black screens, like on the no input screen or when HBO Go is loading. I've yet to notice during a movie scene that's dark. All that being said, I'd like to fix it possible. My warranty is up and even if it wasn't, all Epson ever did was send me other faulty projectors. This one held up for 2 months before I noticed this.

Any idea why I'm having this white spot on my image?

Thanks.
Do a search for dust blobs within the 8350 thread, you will find lots of info.
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