Owners thread Sony Hw55ES - Page 44 - AVS Forum
Forum Jump: 
 1Likes
Reply
 
Thread Tools
post #1291 of 1296 Old 07-25-2014, 07:58 PM
AVS Special Member
 
slateef's Avatar
 
Join Date: May 2002
Location: Blue Heaven
Posts: 1,095
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Liked: 10
Does the use of extreme lens shift (all the way down) negatively impact/degrade picture quality?

Meaning if I have to use the extreme lens shift to bring the image down to completely fit the screen, is it better to just buy an extension for my mount and not use any lens shift at all?

I dream of a better tomorrow... where chickens can cross roads and not have their motives questioned.
slateef is online now  
Sponsored Links
Advertisement
 
post #1292 of 1296 Old 07-25-2014, 09:58 PM
Advanced Member
 
magicj1's Avatar
 
Join Date: Nov 2009
Location: Lake district, England
Posts: 549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Liked: 11
Quote:
Originally Posted by jidelite View Post
magicj1, I created a generic 'null' cable so I used all the pins in my adapters (in case I had to use the adapters in another application). However, I believe the HW55ES (like the Hw50ES) only uses the TxD,RxD, & Ground as you specified.

jidelite
Thanks. I will make my own cable 'simple null modem cable'. Failing this, my next plan is to use an old PC I have which has a RS232 COM port.
magicj1 is offline  
post #1293 of 1296 Old 07-26-2014, 06:41 AM
AVS Club Gold
 
AV Science Sales 5's Avatar
 
Join Date: Sep 2011
Location: A beautiful view of a lake
Posts: 7,236
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 142 Post(s)
Liked: 349
Quote:
Originally Posted by slateef View Post
Does the use of extreme lens shift (all the way down) negatively impact/degrade picture quality?

Meaning if I have to use the extreme lens shift to bring the image down to completely fit the screen, is it better to just buy an extension for my mount and not use any lens shift at all?
Yes, extreme use of lens shift will degrade the picture. Yes, you should buy the drop tube needed to get the lens as close to the top of the image as you can. Only way, to not use any lens shift is to mount the projector, dead center of your screen. That is not practical for most people.

Mike Garrett, AV Science Sales
Call Me: 585-671-2968
Email Me: Mike@AVScience.com

Brands we sell: http://avscience.com/brands/

 

Call for B-stock projectors

Stewart, Seymour, SE, SI & many more.
Klipsch, RBH, Martin Logan, Triad, Atlantic Technology, MK Sound, BG Radia, SVS & Def Tech.

AV Science Sales 5 is online now  
post #1294 of 1296 Old 07-26-2014, 12:32 PM
Newbie
 
Join Date: Jul 2014
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 2
Quote:
Originally Posted by AV Science Sales 5 View Post
Yes, extreme use of lens shift will degrade the picture. Yes, you should buy the drop tube needed to get the lens as close to the top of the image as you can. Only way, to not use any lens shift is to mount the projector, dead center of your screen. That is not practical for most people.
How do I know when the lens shift as at a "neutral"/centered position?
Jesse Jhaj is offline  
post #1295 of 1296 Old 07-26-2014, 04:57 PM
AVS Club Gold
 
GetGray's Avatar
 
Join Date: Aug 2004
Location: Mid-South USA
Posts: 5,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Liked: 46
Quote:
Originally Posted by Jesse Jhaj View Post
How do I know when the lens shift as at a "neutral"/centered position?
Lens shift is neutral when the PJ is centered vertically with the screen. How far you can go before it's a problem depends on the model. Generally even with the top of the screen is a sort of "standard", but I think that's just because there are so many models where that's the limit. I try to stay comfortably away from the PJ' slimits when it comes to vertical lens shifts, of throw ranges for that matter. Unles there's an anamorphic lens involved, then that needs to be considered.
GetGray is offline  
post #1296 of 1296 Old 07-27-2014, 12:49 PM
AVS Club Gold
 
AV Science Sales 5's Avatar
 
Join Date: Sep 2011
Location: A beautiful view of a lake
Posts: 7,236
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 142 Post(s)
Liked: 349
Quote:
Originally Posted by Jesse Jhaj View Post
How do I know when the lens shift as at a "neutral"/centered position?
Zero lens shift with the Sony HW55ES is centered horizontally and vertically with the screen. A lens is usually polished best in the center. That is the sweet spot of a lens and that is why the image thrown when shooting through the center is considered best. As you get closer to the edges of the lens (more lens shift), the image may not be as good. A lot of it depends on the quality of the lens and the size of the lens. A larger lens will have a larger sweet spot and usually will not degrade the image as much.

Mike Garrett, AV Science Sales
Call Me: 585-671-2968
Email Me: Mike@AVScience.com

Brands we sell: http://avscience.com/brands/

 

Call for B-stock projectors

Stewart, Seymour, SE, SI & many more.
Klipsch, RBH, Martin Logan, Triad, Atlantic Technology, MK Sound, BG Radia, SVS & Def Tech.

AV Science Sales 5 is online now  
Reply Digital Hi-End Projectors - $3,000+ USD MSRP

Tags
Sony , Sony Vpl Hw55es 3d Projector

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off