CurtPalme.com Home Theater Forum

km987654 · Posted: Mon Apr 06, 2009 11:51 am Post subject: Whats in a lens

What difference is there in PQ between one HD-10 lens and another?

MP has some HD-10E lenses for sale for $1000USD how much better will PQ be over the basic HD-10 lens for that matter how much better are HD-10F or HD-10GT26 over HD-10??

Is it worth spending on these lenses or are you better off spending in some other area for PQ???

I have read and understand the technical differences but I am interested in real world difference.

emdawgz1 · Joined: 14 Mar 2006 Posts: 7949

The HD10 family of lenses has been designed to maximize performance and
versatility for professional CRT projection video, data and graphics applications.
All HD10 family lenses are optically coupled and designed to cover a full 178mm
(7”) raster diagonal. They are all fully color corrected hybrid designs,
incorporating both plastic and glass elements and share the same C-element and
mounting geometry, making it possible to interchange the lenses on the same
projector. The following is a brief description of lenses in the HD10 family.

HD10E – The HD10E covers 167mm focal length (7”) CRT raster diagonal. It
was designed to provide good performance over the largest possible
magnification range (14-45X). For this reason, CPL recommends the HD10E
lens for applications where the intended screen size requirements may vary over
this wide range (90” – 300” diagonal).

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Guys!

This was from the USPL site a couple of years ago:

HD10 FAMILY DESIGN SPECIFICATIONS

The HD10 family of lenses has been designed to maximize performance and
versatility for professional CRT projection video, data and graphics applications.
All HD10 family lenses are optically coupled and designed to cover a full 178mm
(7”) raster diagonal. They are all fully color corrected hybrid designs,
incorporating both plastic and glass elements and share the same C-element and
mounting geometry, making it possible to interchange the lenses on the same
projector. The following is a brief description of lenses in the HD10 family.

HD10E – The HD10E covers 167mm focal length (7”) CRT raster diagonal. It
was designed to provide good performance over the largest possible
magnification range (14-45X). For this reason, CPL recommends the HD10E
lens for applications where the intended screen size requirements may vary over
this wide range (90” – 300” diagonal).

HD10L – The HD10L is designed for optimized performance for smaller screen
sizes not covered by other HD10 family lenses. This lens provides excellent
performance for a specific magnification range (9-13X). CPL recommends the
HD10L lens for applications requiring screen sizes of 60-90” diagonal.

HD10GT17 – The HD10GT17 is designed for improved resolution over the HD10
lens over a specific magnification range. This lens provides excellent
performance for magnifications of 14-20X. CPL recommends the HD10GT17
lens for applications requiring screen sizes of 100-140” diagonal.

HD10GT26 – The HD10GT26 lens is designed for improved resolution over the
HD10E lens for magnifications of 21-30X. CPL recommends the HD10GT26 for
applications requiring screen sizes of 150-200” diagonal.

HD10GT30-67 – The HD10GT30-67 is designed for improved resolution over the
HD10E for magnifications of 30-45X and to extend the range of the family up to
67X. CPL recommends the HD10GT30-67 for high magnification applications
requiring screen diagonals of 210-460”.

.

Tom.W · Joined: 09 Mar 2006 Posts: 6635

km987654 · Posted: Mon Apr 06, 2009 9:27 pm Post subject:

SCreen size diagonal of 100 inches.

As mentioned I have read all of the above (nice cut and paste jobs). Some of these lenses cost well more than some projectors so whats to be gained some improvement in PQ or a lot or not enough to notice.

If I put say HD-10F or HD-10E lenses on my PJ which currently has HD-10 lenses on it would there be a noticable improvement in PQ. Why would you pay $1000USD for a set of HD-10E? Because they are off a 909?? The specs for 10E and 10F appear better than HD-10.

Kiev Savoie · Joined: 25 Oct 2007 Posts: 432

is the HD10 family only for 9" projectors (without DIY mods)?

Zebu Fellenz · Joined: 21 Dec 2006 Posts: 2567

km987654 · Posted: Mon Apr 06, 2009 10:17 pm Post subject:

In most cases 9" pj

Kiev Savoie · Joined: 25 Oct 2007 Posts: 432

Damn, those HD-10L lenses with the short focal length got my attention. but i'm just a lowly 8" owner

km987654 · Posted: Mon Apr 06, 2009 11:26 pm Post subject:

By the way HD-10F is not listed in the specs above and after doing a search I cannot find the specs. HD-10F used on Sony 1292.