135mm long-throw lense kit from diylabs

wok · 23rd September 2004, 04:56 AM

Is any one using the long-throw 135mm lense from diyprojectorcompany (alan). I ordered the kit with the lense and fresnals to match - the NZ exchange rate is a killer - doubled the price.

Anyway - is anyone using this lense and what are your results?

I have a 15" cmv1515 lcd and a 400w metal halide. I figured with the bigger lense and lcd i would need the biggest light i could find.
The lense is marketed so you can set the projector much further back from the screen and still get a managable size image - it sounded good to me - if anyone has an opinion or results from using this kit can you let me know.

When the lense kit shows up i will put the bad-boy together and post some results.

Also what is your opinion on reflectors behind the light - growers use gloss white painted surfaces on their reflectors - would this be better than a mirror finish on a metal reflector?
Im going to use an aluminum reflector and polish it till it glows - give me your opinion on this.

Cheers everyone - these forums have made my desicisions much easier for parts selection!!!

keep up the good work!

ancorp · 23rd September 2004, 03:32 PM

I got an identical-looking lens with the same specs, seems like an excellent lens, worked well for my 17" flat crt to project it onto a 60 in screen.

slizm · 24th September 2004, 08:04 PM

ancorp dp you have any pics of your results and your pj? Is your lens capable of doing 90-100 inches?

ancorp · 24th September 2004, 08:57 PM

hmm, i dont have an LCD projector.
I just tested it with a CRT. Im going to build a Projector out of a 13 or 14" NON-flat tv, and a 175mm diameter triplet that I got a good deal on.

slizm · 25th September 2004, 03:07 PM

do you know what model opaque your lens came out of?

ancorp · 25th September 2004, 03:22 PM

heres the auction Ive won on ebay
Right Here

Its a Bell & Howell The Spotlight, my guess the original ts-1
Ive seen many ts-5's on ebay for under 100$ that seem to have about the same lens specs, just looks abit different, it had writing on the ts-5 lens.

slizm · 25th September 2004, 10:27 PM

I have a couple of the VU Lyte III Opaques but I can't seem to find the specs on lenses.

ancorp · 25th September 2004, 11:28 PM

well you can find out most by yourself with just a ruler, and a good eye!
Diameter, Focal lenght, overall lenght, and even type (doublet, triplet, achromatic doublet, etc) can be found easily.

wok · 26th September 2004, 09:43 AM

is anyone actually going to post a reply about my first question?

dave123 · 27th September 2004, 09:28 PM

Quote:

Originally posted by wok
is anyone actually going to post a reply about my first question?

This person has used it.

http://www.diybuildergroup.com/showp...06&postcount=4

23rd September 2004, 04:56 AM	#1
wok diyAudio Member Join Date: Aug 2004 Location: Napier NZ	135mm long-throw lense kit from diylabs Is any one using the long-throw 135mm lense from diyprojectorcompany (alan). I ordered the kit with the lense and fresnals to match - the NZ exchange rate is a killer - doubled the price. Anyway - is anyone using this lense and what are your results? I have a 15" cmv1515 lcd and a 400w metal halide. I figured with the bigger lense and lcd i would need the biggest light i could find. The lense is marketed so you can set the projector much further back from the screen and still get a managable size image - it sounded good to me - if anyone has an opinion or results from using this kit can you let me know. When the lense kit shows up i will put the bad-boy together and post some results. Also what is your opinion on reflectors behind the light - growers use gloss white painted surfaces on their reflectors - would this be better than a mirror finish on a metal reflector? Im going to use an aluminum reflector and polish it till it glows - give me your opinion on this. Cheers everyone - these forums have made my desicisions much easier for parts selection!!! keep up the good work! __________________ rock on space dogs!!!!!...

26th September 2004, 09:43 AM	#9
wok diyAudio Member Join Date: Aug 2004 Location: Napier NZ	is anyone actually going to post a reply about my first question? __________________ rock on space dogs!!!!!...

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23rd September 2004, 03:32 PM	#2
ancorp diyAudio Member Join Date: Jun 2004 Location: Vaughan, Ontario (near Toronto)	I got an identical-looking lens with the same specs, seems like an excellent lens, worked well for my 17" flat crt to project it onto a 60 in screen.

24th September 2004, 08:04 PM	#3
slizm diyAudio Member Join Date: Jan 2004 Location: Central FL	ancorp dp you have any pics of your results and your pj? Is your lens capable of doing 90-100 inches?

24th September 2004, 08:57 PM	#4
ancorp diyAudio Member Join Date: Jun 2004 Location: Vaughan, Ontario (near Toronto)	hmm, i dont have an LCD projector. I just tested it with a CRT. Im going to build a Projector out of a 13 or 14" NON-flat tv, and a 175mm diameter triplet that I got a good deal on.

25th September 2004, 03:07 PM	#5
slizm diyAudio Member Join Date: Jan 2004 Location: Central FL	do you know what model opaque your lens came out of?

25th September 2004, 03:22 PM	#6
ancorp diyAudio Member Join Date: Jun 2004 Location: Vaughan, Ontario (near Toronto)	heres the auction Ive won on ebay Right Here Its a Bell & Howell The Spotlight, my guess the original ts-1 Ive seen many ts-5's on ebay for under 100$ that seem to have about the same lens specs, just looks abit different, it had writing on the ts-5 lens.

25th September 2004, 10:27 PM	#7
slizm diyAudio Member Join Date: Jan 2004 Location: Central FL	I have a couple of the VU Lyte III Opaques but I can't seem to find the specs on lenses.

25th September 2004, 11:28 PM	#8
ancorp diyAudio Member Join Date: Jun 2004 Location: Vaughan, Ontario (near Toronto)	well you can find out most by yourself with just a ruler, and a good eye! Diameter, Focal lenght, overall lenght, and even type (doublet, triplet, achromatic doublet, etc) can be found easily.

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