Viewsonic Pro8200 -- it exists. - Page 31

Originally Posted by jasoraso 

ThomasAV, you are correct. For a 100" screen, with maximum zoom, the greatest distance for the lens of the Viewsonic Pro8200 from the screen is 15'7". The offset will be 16.8". If you play around with the various variables in the ProjectorCentral calculator, you will notice that for a given screen size, the offset is constant, regardless of the amount of zoom. I can confirm that is correct. (offset doesn't change w/ zoom).

One other item to note - for a given screen size (100") - for the Viewsonic, the available mounting range is 10'2" to 15'7". Note that the offset stays the same. Also note that for the 100" screen size, the brightness of the image will vary between 34fl at 10' and 25fl at the 15' mounting point.

For comparison, the Epson 8350 is much more flexilble in its mounting options, but that isn't necessarily a good thing. For a 100" screen with the Epson 8350, the zoom allows mounting anywhere between 9'9" and 20"9". Quite a range. However, the Fl of the image varies from 34Fl at 9'9", to 14fl at 20'9" is a very large change. In the case of the Epson, you probably would want to mount the projector based more on desired light output, rather than the easiest installation point.

Depending on your room and viewing conditions (lights, windows, wall color), your desired light output from the projector may dictate the mounting position more so than other factors.

One last consideration - I believe the ProjectorCentral Calculator is pretty accurate with regards to the math calculating throw distance, zoom range, and offset. However, the Fl calculations are taken straight from the manufacturing supplied information as well. You should factor in the fact the Fl output of a projector varies greatly over its life and depending on the calibration/mode (eco, full brightness v. theater selection).

CoderGuy, an owner of a Viewsonic Pro8200, and frequent poster, has a link in his signature to a calculator that has a little more real-life calculations for the Fl you can expect out of a projector.

Originally Posted by jeremyhelling 

So if all else is equal, ideally you want to mount your projector near the front of that mounting window, right? This way your ideal image calibration will use less brightness than if it were at the back which could lengthen the overall life of your lamp, correct? Again, all other things equal. Seems like a basic idea so I want to make sure it applies.

Originally Posted by jasoraso 


That is generally true. Unless perhaps you are in a light controlled environment, w/ a high gain screen (although you probably wouldn't have a high gain screen in that environment).

Some owners have installed a Neutral Density filter because the projector is too bright in their installations. I suppose in that case, mounting the projector further from the screen might be desirable. However, in the case of a ND filter, as the bulb dims as it ages, you have the flexibility of removing the ND filter. If you mount the projector at the furthest distance, you wouldn't have that option as the bulb ages.

Originally Posted by wichogt 

ok I really couldn't wait any longer so I unplugged the PJ the I plugged it back(It was definitely cold) and it turned on and off normally.
if any one have any suggestion to avoid this in the future please let me know.
my lamp has only around 155 hours of use, this is the first time I was using it on normal in the past I've always used it in eco-mode.

Originally Posted by w84no1 

I want to put my 8200 into a soffet or an enclosed projector booth, how much space does this need for adequate cooling?

Originally Posted by Mr.G 

I noticed your location - are you running this in an air conditioned room?

Originally Posted by rgtaa 

good call on his location, it sounds hot.
another thing, how is the power source, maybe get a battery backup, so if power goes through spikes or lightening you are protected.
This PJ needs plenty of space on the sides so it can allow the high air to move away from PJ.
Keep the environment clean, no smoking, etc, because it travels upward to ceiling, and you don't want to get the vents full of dust and smoke.
I'm in hot climate, so I turn my air conditioner on if it's around 80 degrees, just to help keep the PJ from overheating.
At least, the system works if it gave you the error message saying it's too hot.
If it happens again, maybe take it down from ceiling and try it on table, or bookcase to see if it also does it in different locations, just as trouble shooting method.

Originally Posted by wichogt 

I'm on one of the highest altitudes on my country

I just enable the high altitude mode on it and will leave it that way in case that helps it.

Originally Posted by Mr.G 

If indeed you are at that high of a altitude, the high altitude fan mode should always be on. This is likely the cause of your overheating because the air is thinner and less able to cool.

Originally Posted by stkguy 

I really would not recommend this. You could roast a marshmallow with this guy. The box would probably need some heavy air flow and cooling and would also need to be a good size. I think it says in the manual that it need something like 18" - 24".
I find this projector to be fairly quiet, even not on eco mode. is there another reason that you would want/need to enclose it?

Originally Posted by stkguy 

Ok, still going through the RMA process after a week! Dealing with viewsonic is beyond BRUTAL!!!! I will have full details when I am finally through all of this, but I just wanted to give the people on here a heads up.
Also, the warranty page on viewsonics site is still down. Can someone please confirm this for me? Hopefully im wrong. Or at least some other literature on the warranty might be out there. All I know about it is some tidbits that I read on here, nothing actually set in stone.
Thanks.

Originally Posted by pitbull30 

Thanks for all the posting in this thread. I haven’t had a chance to read all the pages from the beginning but I would love to see more ideas on mounts. Specifically those of you who mounted it in the back of the room on a shelf or like the pictures I saw of it attached to the bottom of a shelf upside down. This is the route I want to go.
Im having some trouble finding the right way to set this up in the back of the room due to the throw angle. As of right now the best place is on flat on the floor with the front foot up about ½ inch. At some point I plan on having guests or kids around and I don’t want it sitting down there.
One other question: When I unboxed this it said make sure you have the following components, HDMI, VGA etc. Then it said optional Filter screen? But then I read somewhere it doesn’t have a filter?
To the poster 1 page back getting the screen from amazon. You know Elite has a rebate deal on the 8200 right now for a screen that size right?

Originally Posted by rgtaa 

Mine is not ceiling mounted, and I have used my pro8200 in lots of rooms. Generally I can go back 9-12 feet back and place on couch, or bookshelf, or stacking drawers, or table and get it to work. I have to tilt it a little or if I use on higher bookshelf, flip it upside down , and in menu reverse image. Maybe others can suggest bookshelf mount they are using. As long as I can go straight back from screen, I can get it to work, I will have to experiment, but I do find a place to put it, and it's not on the floor.
.

Originally Posted by jasoraso 

ThomasAV, you are correct. For a 100" screen, with maximum zoom, the greatest distance for the lens of the Viewsonic Pro8200 from the screen is 15'7". The offset will be 16.8". If you play around with the various variables in the ProjectorCentral calculator, you will notice that for a given screen size, the offset is constant, regardless of the amount of zoom. I can confirm that is correct. (offset doesn't change w/ zoom).
One other item to note - for a given screen size (100") - for the Viewsonic, the available mounting range is 10'2" to 15'7". Note that the offset stays the same. Also note that for the 100" screen size, the brightness of the image will vary between 34fl at 10' and 25fl at the 15' mounting point.
For comparison, the Epson 8350 is much more flexilble in its mounting options, but that isn't necessarily a good thing. For a 100" screen with the Epson 8350, the zoom allows mounting anywhere between 9'9" and 20"9". Quite a range. However, the Fl of the image varies from 34Fl at 9'9", to 14fl at 20'9" is a very large change. In the case of the Epson, you probably would want to mount the projector based more on desired light output, rather than the easiest installation point.
Depending on your room and viewing conditions (lights, windows, wall color), your desired light output from the projector may dictate the mounting position more so than other factors.
One last consideration - I believe the ProjectorCentral Calculator is pretty accurate with regards to the math calculating throw distance, zoom range, and offset. However, the Fl calculations are taken straight from the manufacturing supplied information as well. You should factor in the fact the Fl output of a projector varies greatly over its life and depending on the calibration/mode (eco, full brightness v. theater selection).
CoderGuy, an owner of a Viewsonic Pro8200, and frequent poster, has a link in his signature to a calculator that has a little more real-life calculations for the Fl you can expect out of a projector.

Originally Posted by bse53 

Mount the projector first, then the screen. This is one of the few drawbacks to most dlp projectors.
You are going to have a problem with the ceiling fan. The light path is the green line. Dropping the projector down so the center light/fan isn't in the light path is going to put the image pretty low on the wall. Keystone won't help in that case, since you have a physical obstacle in the way of the light path.