Question about NEC VT595 LCD Projector

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It will not turn thus i can not focus...the zoom ring moves but not the focus ring.

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VT 595 the focus knob won't turn appears frozen other then that it works well

Posted on Nov 29, 2012

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Posted on Jan 02, 2017

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2 Answers

How can I adjust focus?


Turn the grey ring around the lens (where the light comes from) until the image is sharp.

Apr 11, 2016 | NEC VT595 Projector

1 Answer

Why does the focusing ring on the efs 55-250mm not retract all the way when you turn the camera off


I doesn't return to it's closed position when the camera is turned off. You have to do it manually . Turn the zoom ring to the 55 position then turn the front focus ring fully to the left.

Apr 27, 2014 | Canon Ef-s 55-250mm F/4.0-5.6 Is Telephoto...

1 Answer

Aperture ring won't turn


When the camera is set to autofocus, let the camera do the focusing. If you want to focus manually, turn off the autofocus so you can turn the focusing ring.

Sep 30, 2012 | Nikon Nikkor 18-55mm f/3.5-5.6G ED AF-S DX...

1 Answer

When the camera is turned on and the 16-105 DT 3.5-5.6 zoom is attached there is a repeated clicking sound that continues until the camera is turned off. A sony camera salesman indicated it was the lens. ...


I had the same problem with my SAL-16105. It turned out that inside the lens the FOCUS DIFFERENTIAL RING (Artnr.: 321020202) was broken. The camera tries to move the focus from one end to the other when it is turned on (probably to check the functionality), but as the ring is broken, focus will never reach its end-point. Thus the camera continues to try to turn the mechanics futher until either the gear on the lens ring or one of the gears inside the lens will jump, making the clicking sounds. Another reason might be that one of the brushes ("focus brush") inside the lens that are used to signal the position of the focus to the camera electronics is damaged. (This might even lead to the mechanical destruction of the focus differential ring I think). I was able to repair my ring, but as I had to glue it, after a few months it failed again. I'm waiting for a replacement ring now.

May 15, 2011 | Sony 16-105mm f/3.5-5.6 Zoom Lens for ...

1 Answer

How do i make the picture to fit the screen on XR10X


You may have tried using the zoom ring located at the lens there are two rings one for focus and zoom. If this is not working you will need to either move the projector physically forward or backward from the screen until you can use the zoom accordingly.

May 29, 2010 | Sharp XR-10X Multimedia Projector

1 Answer

ROKINON AUTO ZOOM Macro--- HELP to enable macro


Some of the Rokinon (and other ) zoom lenses could only go into MACRO at certain focal lengths- the lens you have "zooms" from 80 to 200 focal length,but is that done by "sliding" a ring forward and back on the lens, or by twisting a different ring that the one that focuses?

May 16, 2010 | Rokinon 85mm f14 for Nikon

1 Answer

Distance scale does not move on canon efs 17-85mm lens


Yes, this is normal. Some zoom-lenses adjust the focus when zooming, to always keep the subject in focus. Those tends to be the more expensive lenses.
So you don't have to worry, nothing is wrong with your lens.
/Chris

Jan 10, 2009 | Canon EF-S 17-85MM F/4-5.6 IS USM Lens

2 Answers

Zoom ring on 18-55 mm lens is locked/stuck


Are you sure it's the zoom ring that's stuck, and not the focus ring? The focus ring doesn't move when the camera is in autofocus.
If it's indeed the zoom ring that's stuck, you can spend more money than the lens is worth in repairs, or buy a replacement (circa 35 dollars on ebay) for dreadfully cheap. Good luck.

Apr 06, 2008 | Nikon D40 Digital Camera with G-II 18-55mm...

1 Answer

Zoom error


Just fixed the same problem on mine. This is what I did:
Unscrew 6 small screws around the lens casing and remove the casing (two layers ((rings)). Jiggle the inner most lens casing while you turn power on. The lens moving (i.e., auto focus) mechanism becomes unstuck. Voila.
The problem in my case was caused by the dust that accumulated inside the casing and caused the auto focus mechanism not to move freely.
Good luck.

Mar 05, 2008 | Fuji FinePix S7000 Digital Camera

1 Answer

Losing focus


Usually this is a back focus problem; also called a flange back adjustment.  If the back focus adjustment is possible on this camera, zoom out wide - open iris all the way - and adjust focus and lock position.

Nov 06, 2007 | Sony Handycam DCR-VX2100 Mini DV Digital...

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