Given ISCO III and sled

Kelvin1965S · 11-15-09, 05:12 AM

Quote:

Originally Posted by tbase1

GetGray/CAVX

What model isco lens is this and is it worth playing with?

That doesn't look at all like my Isco II, though I don't know what it is.

Quote:

Originally Posted by tbase1

It looks like the isco 1 is a 4:3 to 16x9 lens. I wonder if that's the limit for this lens.

That is the same 1.33 x increase so you can also use such a lens to go from 16:9 to 2.35:1. I know of users that had 4:3 projectors that used an Isco II to go to 16:9 same as I'm using mine to go from 16:9 to 2.35:1.

Quote:

Originally Posted by Franin

lol I like that!

I liked that comment too.....it's not that it's hard, just take your time and go through each step a couple of times if neccesary. My more careful attempt on Friday seems to have optimised my lens setup, using the Cineslide information.....apart from me adding a bit of downward lens shift in my HD350 and then adjusting the Isco to compensate: This cured some 'ghosting/halo' effect I had on a bright 80 IRE window test pattern, though this could be unique to the Isco II/HD350 combo, it's worth looking for.

Gary Lightfoot · 11-15-09, 06:40 AM

I've just dug out a picture of my ISCO II when it was attached to my Optoma H78. It looks very similar to the ISCO I image you have there, except it doesn't have the mount. The thread on the rear is for screwing it into a mount - GetGrey has a myriad of those if you ask him nicely.

This is the second ISCO 'I' I've seen now and neither had a mount in the sale. I'm not sure what the difference between a I and II is but they look optically very similar judging by the pics, although the I appears to have less in the way of internals. If you can get it at a good price it might be worth playing with unless someone can dig out some definitive info.

Just found this:

http://www.htguide.com/forum/showthread.php4?t=29070

Quote:

I owned two ISCO and a Panamorph fluid lens. The ISCO I lens looked sharp, but it was not a perfect 1.33:1 proportion, the ISCO II lens that I had was the best one and it looked great. The Panamorph fluid lens was cool(I still have it) but it was a 2.35:1 lens, and when I moved to a native 16:9 projector I couldn't use it any more.

Not definitive but perhaps the ISCO I wasn't a perfect 1.33 lens (I seem to remember seeing a different ratio attributed to the I in the past - maybe 1.25) and the II is?

Gary

tbase1 · 11-15-09, 06:55 PM

Do you see this as a cost effective route in for a newbie to scope?

DaveUpton · 11-15-09, 09:33 PM

That would depend on your budget and your definition of cost effective. The lens route is considered to be the "no hold barred" approach rather than the budget one generally.

tbase1 · 11-16-09, 10:23 AM

This is not for me...i have a lens. I'm just looking out for guys that want to go the lens route that might be very interested if these were doable. I paid 500 for my first lens, so I would guess around that range would be cost effective, however, one mans cost effective is anothers high end.

elmalloc · 11-19-09, 09:19 PM

i wonder how that 500 lens performs

tbase1 · 11-19-09, 09:27 PM

It performed well for me...however, so does my 1998 Volvo wagon.

tbase1 · Yesterday, 12:32 PM

WOW Ed.....That was fast...what went wrong with the lens?

tbase1 · Yesterday, 12:40 PM

I just got finish setting up my 4k, vp50, and isco 3L. I wanted a fix lens setup and the below is how I have it setup now, so please give me your thought what I need to change for the given AR. Some say I should just dump the lens and use the auto AR of the projector and be done with it, but 4k auto AR is is zoom for the most part.

16x9 up5000 24fps > AVR > VP50 1080p 24fps AR 1.78 > 4k >3L in place (17' to 8' scope screen) VC
2.35 up5000 24fps > AVR > VP50 1080p 24fps AR 4.3 > 4k >3L in place (17' to 8' scope screen) VS

elmalloc · Yesterday, 01:11 PM

i wonder if after all these questions you will actually sit and watch movies on it or be here thinking about the next upgrade - lol

tbase1 · Yesterday, 01:30 PM

Well wonder no more...... I'll never stop until I want to, and as far as watching movies concern..... I always watch movies. After all this is a tech. forum not a blog, so we will always ask questions and answer them to help our setup and help others with theirs.

elmalloc · Yesterday, 02:27 PM

it's meant as a joke, because I don't think I'm alone that I've probably spent more time in this forum than watching movies on my setup. well I was inactive on this forum for probably a year or so though once my theater was setup, but now that I reworked it I'm back too - HAHA!

I know one guy who is not into the electronics much at all though but watches 6 hours a day on his projector.

There is no end in sight for us unlike him.

Kelvin1965S · Yesterday, 03:34 PM

I'm with you on this Elmalloc....I spend probably 20-30 hours plus a week on this and other AVforums and maybe 4 hours a week watching my PJ. If I wasn't so fussy about putting up my 'Tent' each time I watch I'd probably use it during the week, but my room is a light colour and no chance of painting it darker. I can't stand watching it looking all washed out without the tent, etc. I 'got away' with 7.1 speakers (including quite a big subwoofer that looks like an Oak table), building screen 'pelmet' (soffit) and painting the screen wall dark brown...anymore would be overstepping the mark in our living room I think.

Vern Dias · Yesterday, 04:07 PM

Quote:

Some say I should use dump the lens

People who never had a personal encounter with an Isco III, obviously....

Vern

edfowler · Yesterday, 04:19 PM

Quote:

Originally Posted by tbase1

WOW Ed.....That was fast...what went wrong with the lens?

nothing wrong with the lens at all Tony. I think I just lost the fire for setting stuff up and tweaking it for the ultimate picture. the lens makes a beautiful picture. But I don't have the time or inclination to set everything up like it should be.

I'm just tired. I feel thin...sort of stretched, like butter scraped over too much bread.

Now that I've got the vc anamorphic lens I've always wanted I don't have the energy to use it.

It is an excellent lens though.

tbase1 · Yesterday, 06:00 PM

Quote:

Originally Posted by Vern Dias

People who never had a personal encounter with an Isco III, obviously....

Vern

Sorry about the fat finger, but I meant to say "people say i should just dump the IIIL." However, you're right....they never saw a IIIL in action...it's something to behold.

11-16-09, 10:23 AM	#485 \| Link	<a href='http://rev.avsforum.com/phpAdsNew/adclick.php?n=a591f81a' target='_blank'><img src='http://rev.avsforum.com/phpAdsNew/adview.php?what=zone:36&n=a591f81a' border='0' alt=''></a>
tbase1 VIDEO DROME Join Date: Apr 2003 Location: medina Ohio Posts: 1,702 Classified Rating: 100% (6)	This is not for me...i have a lens. I'm just looking out for guys that want to go the lens route that might be very interested if these were doable. I paid 500 for my first lens, so I would guess around that range would be cost effective, however, one mans cost effective is anothers high end.

11-19-09, 09:19 PM	#486 \| Link
elmalloc Eternal Sonata Join Date: Apr 2002 Location: Brunswick, OH Posts: 2,837	i wonder how that 500 lens performs __________________ Theater construction.

Yesterday, 12:40 PM	#489 \| Link
tbase1 VIDEO DROME Join Date: Apr 2003 Location: medina Ohio Posts: 1,702 Classified Rating: 100% (6)	I just got finish setting up my 4k, vp50, and isco 3L. I wanted a fix lens setup and the below is how I have it setup now, so please give me your thought what I need to change for the given AR. Some say I should just dump the lens and use the auto AR of the projector and be done with it, but 4k auto AR is is zoom for the most part. 16x9 up5000 24fps > AVR > VP50 1080p 24fps AR 1.78 > 4k >3L in place (17' to 8' scope screen) VC 2.35 up5000 24fps > AVR > VP50 1080p 24fps AR 4.3 > 4k >3L in place (17' to 8' scope screen) VS Last edited by tbase1; Yesterday at 05:57 PM..

Yesterday, 01:11 PM	#490 \| Link	<a href='http://rev.avsforum.com/phpAdsNew/adclick.php?n=a591f81a' target='_blank'><img src='http://rev.avsforum.com/phpAdsNew/adview.php?what=zone:36&n=a591f81a' border='0' alt=''></a>
elmalloc Eternal Sonata Join Date: Apr 2002 Location: Brunswick, OH Posts: 2,837	i wonder if after all these questions you will actually sit and watch movies on it or be here thinking about the next upgrade - lol __________________ Theater construction.

Yesterday, 02:27 PM	#492 \| Link
elmalloc Eternal Sonata Join Date: Apr 2002 Location: Brunswick, OH Posts: 2,837	it's meant as a joke, because I don't think I'm alone that I've probably spent more time in this forum than watching movies on my setup. well I was inactive on this forum for probably a year or so though once my theater was setup, but now that I reworked it I'm back too - HAHA! I know one guy who is not into the electronics much at all though but watches 6 hours a day on his projector. There is no end in sight for us unlike him. __________________ Theater construction.

11-15-09, 06:55 PM	#483 \| Link
tbase1 VIDEO DROME Join Date: Apr 2003 Location: medina Ohio Posts: 1,702 Classified Rating: 100% (6)	Do you see this as a cost effective route in for a newbie to scope?

11-15-09, 09:33 PM	#484 \| Link
DaveUpton Senior Member Join Date: May 2007 Posts: 309	That would depend on your budget and your definition of cost effective. The lens route is considered to be the "no hold barred" approach rather than the budget one generally.

11-19-09, 09:27 PM	#487 \| Link
tbase1 VIDEO DROME Join Date: Apr 2003 Location: medina Ohio Posts: 1,702 Classified Rating: 100% (6)	It performed well for me...however, so does my 1998 Volvo wagon.

Yesterday, 12:32 PM	#488 \| Link
tbase1 VIDEO DROME Join Date: Apr 2003 Location: medina Ohio Posts: 1,702 Classified Rating: 100% (6)	WOW Ed.....That was fast...what went wrong with the lens?

Yesterday, 01:30 PM	#491 \| Link
tbase1 VIDEO DROME Join Date: Apr 2003 Location: medina Ohio Posts: 1,702 Classified Rating: 100% (6)	Well wonder no more...... I'll never stop until I want to, and as far as watching movies concern..... I always watch movies. After all this is a tech. forum not a blog, so we will always ask questions and answer them to help our setup and help others with theirs.

Yesterday, 03:34 PM	#493 \| Link
Kelvin1965S Advanced Member Join Date: Apr 2007 Location: Berkshire, UK Posts: 855	I'm with you on this Elmalloc....I spend probably 20-30 hours plus a week on this and other AVforums and maybe 4 hours a week watching my PJ. If I wasn't so fussy about putting up my 'Tent' each time I watch I'd probably use it during the week, but my room is a light colour and no chance of painting it darker. I can't stand watching it looking all washed out without the tent, etc. I 'got away' with 7.1 speakers (including quite a big subwoofer that looks like an Oak table), building screen 'pelmet' (soffit) and painting the screen wall dark brown...anymore would be overstepping the mark in our living room I think.