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Author Topic: How does the Sony handle lens shift?
Alan Gouger
Jedi Master Film Handler

Posts: 501
From: Bradenton, FL, USA
Registered: Jul 2000


 - posted 01-06-2013 11:20 PM      Profile for Alan Gouger   Author's Homepage   Email Alan Gouger   Send New Private Message       Edit/Delete Post 
I was told the Sony's do not have lens shift. I would think this is a must when zooming between different ratios. Is this correct and if so what is the work around. Thx.

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Bajsic Bojan
Expert Film Handler

Posts: 190
From: Ljubljana, Si, Eu
Registered: Aug 2008


 - posted 01-07-2013 01:20 AM      Profile for Bajsic Bojan   Email Bajsic Bojan   Send New Private Message       Edit/Delete Post 
From the brochure:

Lens Shift Function
The SRX-R320 is equipped with a lens shift function that
allows projected images to be moved up and down or
from side to side. This lens shift function can be operated
manually via the finger screws incorporated on the
projector’s unit. Using this function, the position of the
projected images can be moved vertically by -50% to +50%
and horizontally by -5% to +5%.

---

The 515 however has this:
V shift +/- 35%
H shift +/- 7%
with "lens shift block"

What that means is anyones guess.

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 01-07-2013 10:38 AM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
quote: Alan Gouger
I was told the Sony's do not have lens shift.
You were probably told so by someone endorsing DLP projectors ;-)

- Carsten

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Alan Gouger
Jedi Master Film Handler

Posts: 501
From: Bradenton, FL, USA
Registered: Jul 2000


 - posted 01-07-2013 11:24 AM      Profile for Alan Gouger   Author's Homepage   Email Alan Gouger   Send New Private Message       Edit/Delete Post 
quote:
You were probably told so by someone endorsing DLP projectors ;-)
Thanks for the correction guys.
Maybe they meant it is not avail as a macro due to it requiring manual operation.

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 01-07-2013 12:29 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
As said, it's manual. Hence, when setting up the picture, you need to move the scope picture electronically. If the electronic shift is not enough - because the projector is too far away from the centre axis - you need, unfortunately, to rake the machine. On a DLP you can use the lens shift before starting to move the machine.
Not a big deal though. And SONY's lenses have a quite good focus depth - thankfully, since there is no boresight/scheimpflugh.

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Alan Gouger
Jedi Master Film Handler

Posts: 501
From: Bradenton, FL, USA
Registered: Jul 2000


 - posted 01-07-2013 02:47 PM      Profile for Alan Gouger   Author's Homepage   Email Alan Gouger   Send New Private Message       Edit/Delete Post 
Im taking from what has been said the focus and zoom are motorized?

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Paul Mayer
Oh get out of it Melvin, before it pulls you under!

Posts: 3836
From: Albuquerque, NM
Registered: Feb 2000


 - posted 01-07-2013 03:35 PM      Profile for Paul Mayer   Author's Homepage   Email Paul Mayer   Send New Private Message       Edit/Delete Post 
On the 2D lenses, yes. On the 3D RealD XLS lenses, they're all manual too.

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 01-07-2013 06:17 PM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
Which is not a problem due to the way Sony handles the 3D image remapping.

- Carsten

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 01-08-2013 03:59 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Yes, you never touch focus and zoom on a 3D lens. The picture is scaled inside, focus and zoom are set during the installation.

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