View Full Version : Got my Frensel Lens today..... :)

04-24-2006, 02:22 PM
See this (http://forums.ubi.com/eve/forums/a/tpc/f/23110283/m/6541015234/p/1) thread for a reference.

First off... THANKS GAU!!!!!

I havent mounted it yet.. but it does look promising. I have to admit... just holding it @ 3" off the monitor by hand made my 19" look like a 23" monitor... and the farther away it is, to a point anyway, the clearer it is. It came pretty quick.... and it is packaged very well. I just viewed a track with manual views turned off so I could see what I would see in the pit and it wasnt bad at all.... well worth the investment IMO. I think I may spend more on mounting hardware... than on the lens itself http://forums.ubi.com/images/smilies/88.gif. I want to mount it using something that is a little less..... obtrusive... than a box taped to the monitor... (Taking nothing from the box setup mind you... http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif)

All in all.... a great little gem.. and for the price you cant beat it with a stick.

I got the #550 from here (http://www.3dlens.com/).

04-24-2006, 02:42 PM
Glad to hear it! I find that I need to spend more of my hard earned cash http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

04-24-2006, 02:50 PM
Me too, I be getting one.

04-24-2006, 03:07 PM
Screenies please

04-24-2006, 03:11 PM
Before you attach it to your monitor you gotta go out and fry up some ants to break it in!

04-24-2006, 04:17 PM
Originally posted by RCAF_Irish_403:
Screenies please

I cant give you screenies.. it is something that fits over the monitor... look at the thread that I posted to get the gist.

04-24-2006, 04:39 PM
The possibly meant photo screenshots http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

04-24-2006, 04:43 PM
May be possible to use 2 way stickie tape for mounting. I agree, burn some bug's first though http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif

04-24-2006, 05:07 PM

04-24-2006, 05:19 PM
I have seen photos of these before and fraid to say, that the way the lens works photos are pretty meaningless as you cannot focus a camera on them properly to get an image to do it justice.............

04-24-2006, 05:30 PM
Better yet, 2 way sticky, and velcro strip's. Easy to remove the len's that way

04-24-2006, 11:46 PM
heya bear!

glad you like it! http://forums.ubi.com/images/smilies/25.gif

agree small tabs of sticky velco is prolly the best bet, once you get some kind of framework.

i got rid of the box, and have a simple..if "WTF" contrapiton going now, held by to colums of cardboard jutting out from the edges... and tape the lens to those 2 horizontal pillars..

was going to take pics, but digi cam needs charging.

im pretty sure were going to see all sorts of contraptions for this http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif

04-25-2006, 03:05 AM
Who's Frensel? http://forums.ubi.com/groupee_common/emoticons/icon_confused.gif I know only of one guy Fresnel who died long time ago and was in the lens businness http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

04-25-2006, 04:04 AM
your correct lowfighter.

he devoloped a lens that came to bear his name. used most commonplace in lighthouses, smaller versions can be had for gaming. what happens with the fresnel lens is that it adds depth. but not true 3-D. but its easy and convincing to your eyes.

if your interested, check this thread out...


and this website that explains more about it better than i can.


and if you want to buy one..go HERE.. and order the "large fresnel lens" in either 330 mm or 550 mm focal point versions..


for something allready set up for 3 monitors, or single *at a good chunk of change..go here

04-25-2006, 04:41 AM
Cheers Bear http://forums.ubi.com/images/smilies/25.gif

04-25-2006, 05:04 AM
Originally posted by Bearcat99:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by RCAF_Irish_403:
Screenies please

I cant give you screenies.. it is something that fits over the monitor... look at the thread that I posted to get the gist. </div></BLOCKQUOTE>

(LOL) I meant screen shots....doesn't this give you a 3D effect?

04-25-2006, 05:05 AM
I dont get it

It looks zoomed in but like a motion blur.

TgD Thunderbolt56
04-25-2006, 06:03 AM
Originally posted by StellarRat:
Before you attach it to your monitor you gotta go out and fry up some ants to break it in!

http://forums.ubi.com/images/smilies/34.gif http://forums.ubi.com/images/smilies/blink.gif

04-25-2006, 06:55 AM
Originally posted by panzerd18:
I dont get it

It looks zoomed in but like a motion blur.

It's a method of building a very powerful magnifying glass of large diameter without the lens being so thick that it's not practical. The result is a big improvement in effective screensize. A side effect is an impression of true stereo 3D rendering, but this is optical illusion (still very nice though).

04-25-2006, 11:42 AM
I want to get one too but I need to find some kind of way to mount it in a practical way. http://forums.ubi.com/images/smilies/35.gif http://forums.ubi.com/images/smilies/compsmash.gif

04-25-2006, 11:52 AM
I seriously want one of these, badly.

04-26-2006, 04:29 AM
I think I may spend more on mounting hardware... than on the lens itself . I want to mount it using something that is a little less..... obtrusive... than a box taped to the monitor... (Taking nothing from the box setup mind you... )

I have a idea for you Bearcat. Take a block of wood, using a tablesaw cut a curf (should not have to be too deep) lenghtwise, the same size as len's thickness. Finish the wood so that it's perdy (for wife's sake). Then just insert len's. The block of wood chosen should be thick enough to place len's at proper height, heavy enough to supply support, (and perdy for the pic's that I know you will post). It's the same idea as many picture frames. Unless for some reason the len's has to be sealed to prevent light from entering from the side's, this would be a easy way of mounting. Easily moved in, or out for proper focus, cleaning, or when desired non-use http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

04-26-2006, 09:07 AM
Bear......I built one with Gau about a year ago. it's pretty cool the way it looks. Glad to hear Gau that you got a bigger lens and it's working well. It does add something to the feel of flying in 3d. I need to pull mine back out and play with it.

04-26-2006, 01:53 PM
Hello there http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif how does it feel with a trackIR?

04-26-2006, 02:44 PM
Mine came through yesterday and if nothing else its going to save my eyesight, the magnification factor is very large.

Not sure on the mounting solution yet but the block of wood with a groove sounds like a nice and simple solution.

dont think ambient light is an issue though so a box is not (as far as I can tell) neccessary.

May need to remount track ir so that lens does not obscure it though.

04-26-2006, 02:58 PM
Just got my lens a few days ago(F550). Mounted it in a custom made box, sprayed matt black inside, about 9 inches from a 19inch monitor, sit pretty close up to lens and it is amazing. Appearance of an enormous screen and with eyes focussed to infinity. Don't need to use my close-up specs now, poor old geezer that I am. Seriously good.

04-27-2006, 01:33 AM
man, I thought this was about flying the ball

04-27-2006, 01:33 AM

(excuse me, ive been QUITE drinikng..tyopos not far behind!!!!)

its pretty good with trackir. if you cen set the trackir high enough to not get a reflection off the lans.

because the lens is basically a large magnifying glass. youll see some jaggies unless yiour vid card is can do the anti-aliasing/inisotrpical thing..
---LOL this is FUN!! ---

erm sorry. long story shiort. it works well.

ill be embarassed when i sober up later..but i dint care now http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif ..


04-27-2006, 01:35 AM

S~ capitoal salute with the CAPITAL "S"!!!

ya mON!

i should leafe....

04-27-2006, 11:07 AM
Thanks for the info http://forums.ubi.com/images/smilies/25.gif I`ll put one on my list.

04-27-2006, 02:04 PM
Originally posted by Blood_Splat:
I want to get one too but I need to find some kind of way to mount it in a practical way

Ooooh Aaaar missus,

Nudge, nudge, wink, wink, say no more!


04-27-2006, 04:51 PM
does this lens work with all monitor types? crt or lcd.

04-27-2006, 11:09 PM
yeah, it works with LCD or CRT.

the problem that an LCD user might have is finding a way to mount the lens in front of the monitor, without making it too heavy on a frontal load. best bet is to find a way to create a frame with a base for it.

05-07-2006, 02:21 PM

05-07-2006, 03:36 PM
How usable is the set up with a fresnel lens for the usual computer activities (email, web surfing, and the like)? I really don't want to have to put the thing on just to play IL-2 and pull it off to read an email!

05-07-2006, 04:01 PM
i wont sugar coat it.it MIGHT not be for you. if its REALLY going to be a hassle

you will either have to take it on/off...

or you will have to get used to it if you dont feel like taking it off.

i am the "i deal with it" owner.

i have my resolution set at 1800x1440 and i can decently deal with it, though some times depending on the site i am at..i just have to take the lens down.

05-07-2006, 07:20 PM
Is there some formula for these lenses that determines the size to buy? I have a 17" KDS LCD.

05-07-2006, 08:01 PM
Watch out for the side effects guys, this is my neighbor Freddy, he used one for about a year. Two years ago he had perfect vision.


05-07-2006, 08:04 PM

'Nuff said! http://forums.ubi.com/images/smilies/88.gif

"Whoever claims he has never perceived an oppressive feeling of fear has certainly never been to the front. The prerequisite for bravery is fear,just as the fear of dying and the uncertainty of what follows this earthly existence are the prerequisites for the origin and existence of every religion." Otto Carius

05-07-2006, 10:42 PM

no formula. just buy the biggest one you can get with a pich groove of .2 mm (it shows the p;tich groove info at 3DLENS.COM)

you WANT a lens larger than the viewable area of your monitor! if not , when you get it you will have to be up closer to "look into the bos" for the larger "virtual screen"

luckily my lens is slightly larger than the 21 inch viewable area on my monitor,. soi dont have to get right up on the lens. save time, money, and discomfort. get the biggest one at either the 350 or 550 focal foint..

TX Rahman
05-08-2006, 08:51 AM
See your PM from me Sir...

05-08-2006, 04:05 PM
Anyone got a source for decent quality fresnel lenses in the UK?

05-08-2006, 04:09 PM
i think it's time for glasses http://forums.ubi.com/images/smilies/53.gif http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif

05-09-2006, 04:18 AM
Originally posted by Aaron_GT:
Anyone got a source for decent quality fresnel lenses in the UK?

See the post I linked to in the beginning. They are a Chinese company.. I got my lens in @ a week .

05-09-2006, 05:15 AM
Ah - the prices were in $$$ so I just assumed it was a US company.

Thanks, Bearcat!

05-09-2006, 05:15 AM
Thanks for the insperation guys



05-09-2006, 05:30 AM
Originally posted by Aaron_GT:
Anyone got a source for decent quality fresnel lenses in the UK?

Not fond anyone in the uk that supplies these lenses at the same size and quality Aaron. I live in the uk and got mine through the chinese company ,very quick delivery. I think I posted a uk link on GAU's thread but like I said they arent selling at the same size and quality.

Oh yeah nice mounting solution Bowman http://forums.ubi.com/images/smilies/25.gif

05-09-2006, 06:14 AM
Kent Optical does high quality ones, but those are the 90 ones!

05-09-2006, 06:23 AM
How close to the lens do you have to put your face in order to see the effect of the lens?

05-10-2006, 12:19 AM

simkits is based in england...i think
and they offer a LARGE fresnel lens, but at a very "OUCH" price...


skunk, if you mean seeing teh COMPLETE screen, depending on how you set it up, anywhere from "nose on lens" (and has striking results!) back to about a foot and half... ROUGHLY. but each peron is different, and also depends on your size monitor.

05-10-2006, 01:22 AM
one thing I am not clear on

the largest size from the chinese company seems to be 330 x 400 mm which translates to about 13" x16" which is a little over a 20" diagonal

i understand there is an extra depth thing going on but how does this give any size advantage on something like a 20" or 24" flat screen ?

( Dell currently have a 24" flat on special in oz for $1200 australian)

05-10-2006, 01:44 AM
Originally posted by Bowman_61:
Thanks for the insperation guys



Wow, that's sweet. Mine's still taped to a cardboard box. http://forums.ubi.com/images/smilies/16x16_smiley-indifferent.gif

05-10-2006, 02:16 AM
and they offer a LARGE fresnel lens, but at a very "OUCH" price...

I see what you mean! Mind you a 30 inch diagonal is overkill for my 17 inch monitor! At about 130 it is also overkill! Looks very good quality though.

05-21-2006, 07:15 PM
Just to give my feedback- I've tried using a Fresnel lens for a week now. I've decided to put it away.
It didnt do much for my gameplay but it makes the playback easier to watch. My final verdict would be to not bother with it.

05-21-2006, 08:46 PM
just curious, what was it that you didnt like about it?

maybe you can sell it. if you are in the states..ill buy it from you.

05-21-2006, 10:33 PM
Originally posted by GAU-8:
just curious, what was it that you didnt like about it?

maybe you can sell it. if you are in the states..ill buy it from you.

Sorry mate, i'm in Oz.
I just found that it didnt improve my experience of the game. It seemed harder to control the TrackIR movement which had never been an issue for me before (and i checked to make sure the tracking wasn't being influenced by the screen).
I also found once i took it off the screen the resolution on my monitor seemed a lot sharper and the colours were more saturated.

It wasnt so much that i didnt like it, it was more that i didnt like it enough to want to continue using it.

05-22-2006, 01:14 AM
sorry it didnt work out for you http://forums.ubi.com/groupee_common/emoticons/icon_frown.gif but at least it didnt cost lot to realise you didnt like it.

now you can use it to cook outside http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

05-22-2006, 01:36 AM
Hmm I've been wanting a bigger display lately too. So much so that I've been considering a projector but to bulb costs really kill it for me. The bulbs cost $300 at minimum and only last 4000 hours, which amounts to about 3 months if you use it regularly (2-4 hours a day) Thats 1200 a year just for the stupid bulbs alone. Fresnel lenses kind of make the image too blurry etc.

The only alternative I see is one of those DIY projectors, companies are actually already starting to make them (they use different bulbs that cost about $30 each and last 20,000 hours)

I will buy one the second a company offers one that does 720p-1080p resolution and has a contrast ratio higher than 1:1000. Hopefully it will be some time soon (and not too expencive)

05-30-2006, 04:46 AM
hey peeps,

i have talked about the fresnel lenses at some other sites as well as here. anyways, one of my other contacts decided to spend the money on 3 seperate lenses (for purpose of testing the 3 different focal lengths they come in.)

so for those that are interested..you can make a better judgement on your selection based off of RED KITES experience...


Ok, got the other lenses to try out. For those who are still interested I'll share my findings so as to save people from making the wrong choices.

There are three lenses available from 3D Lens.com for this purpose the F220, F330 and F550. The numbers refer to the focal length of the lenses thus the lower the number the higher the magnification. The lenses are just under 20" from corner to corner so are good for any monitor up to 19". Larger monitors can be accommodated but you will need to move around to see the entire screen at once unless you sit quite close to the lens.

To be honest I wouldn't bother with the F220, it is just too powerful for this purpose and causes too much distortion around the edges. Best to use this one for frying ants in the garden! The F330 is a good choice for serious gamers who like to sit with their nose right up to the screen. The depth of view that this lens gives is quite deep, but if like me you like to relax and sit further back from the screen you will find that this lens causes too much distortion away from the centre and it is like looking through a giant polo mint with the only clear view in the middle!

I find that the F550 lens to be the best choice for those that would like to experiment with this. It is a much more user-friendly lens allowing you to sit quite far back from it if you wish yet still giving you a full view of the screen area with very little blurring around the edges. The depth of view is still good but you don't have to strain yourself by sitting right up to the lens in order to see the entire screen area!

I€m using a F550 lens at this moment, and I can assure any sceptics that this simple idea really does immerse you into any game! Well worth trying out, and if nothing else definitely the most cost effective way to give yourself a massive monitor!