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Focus ring replacement - Dell M410HD Projector Projector

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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

Distance scale came loose


Measure out 100yards and focus scope to that then replace ring to the 100 mark and fix

Apr 08, 2014 | Tasco Optics

2 Answers

Scope is out of focus


You focus on the reticle with the eye focus ring. You need a parallax adjustment ring to "focus" a scope. Your scope does not have this feature. Are you trying to use it at a very short distance?

Mar 30, 2013 | Weaver K4 4X38 Riflescope

1 Answer

Can i replace focusing ring on nikon 18-200 lens


Rubber focus ring can be purchased in ebay.
The rubber ring may be attached to the lens with glue. Use denature alchohol between the rubber and lens to remove the rubber ring. It can be stretched little. Once removed, clean any glue on the lens and stretch the new rubber ring and install.

Nov 01, 2012 | Nikon 18-200mm f/3.5-5.6 G ED-IF AF-S VR...

1 Answer

Hello, I have a celestron c9,25. I adjust a nikon D3100 with T-Ring and Adapter to my telescope. Firstly I focus to moon, using an eyepiece, then I removed the eyepiece and adjusted the Nikon. The...


Because the camera has a different focus point from the eyepiece. TURN the focus knob until the camera comes into focus. OR you can buy a "focus ring" for the eyepiece which attaches to the barrel of the eyepiece and is adjustable-- then focus with the camera FIRST and then insert the eyepiece with the ring on it and lift it UP until the image comes to focus-- then tighten the ring. NOW you can use that eyepiece to roughly focus the camera.

Jun 25, 2011 | Celestron C9.25-CF 2350mm f/10 Aluminum...

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

The manual focus ring on my camera doesn't work. The ring turns but does not seem to adjust the focus. Automated focusing still works. How to fix it?


Two methods:-

1. Use the slider switch on the left of the camera to set it to MF (manual focus). The focus ring is an electronic one rather than a physical control like the zoom ring, so the response can seem slow.

2 Go into the camera menu and enable DMF (Direct Manual Focus). This allows you to override the autofocus simply by adjusting the focus control, but it does not work if the slider switch is set to the AF C setting (continuous autofocus), it only work in the AF-S (AF only activates once when the shutter is half pressed).

Jan 31, 2011 | Konica Minolta DiMAGE A2 Digital Camera

1 Answer

My focuser ring fell of and I wonder where I can get a replacement focuser ring.


To replace the focuser would be more than the telescope is worth. Never buy a telescope costing under $200 those are just toy scopes.

Try this one for your next telescope:

http://www.telescope.com/control/product/~category_id=dobsonians/~pcategory=dobsonians/~product_id=08942

Aug 24, 2009 | Vivitar (1607225) Telescope

3 Answers

Unsure of how to use the extra functionality


That is the focusing ring. I'm guessing your camera is set to focus automatically (Little switch on the side of the lens should have settings for either AF or MF, or something similar.)

If its on AF, you don't need to adjust the focus ring.
However, if you have problems with the AF (sometimes it has trouble, especially in low light) you can switch it to MF, and focus manually by changing the ring.

As a general guideline, the more you twist to towards macro, it focuses closer and closer, and infinity futher away (if you're taking a shot of the moon, you want it on infinity)

Nov 26, 2007 | Canon EF-S 17-85MM F/4-5.6 IS USM Lens

1 Answer

Loose Focus ring assembly


IF YOU TAKE A LOOK AROUND THE FRONT OF YOUR CAMERA THERE ARE SEVERAL SCREWS, ABOUT 4 I THINK,
1) 1 ON BASE
2) 1 ON THE LEFT LOOKING AT FROM THE FRONT
3) AND 2 INSIDE THE FLASH CASE
REMOVE THESE SCREWS AND THEN YOUR FOCUS RING AND SOME OF THE CASE SHOULD COME OFF
INSIDE THE FOCUS RING YOU SHOULD SEE 3 SREWS IF NOT CHECK THE CAMERA TO SEE IF THEY HAVE FALLEN INSIDE,
IF NO JOY YOU CAN REPLACE THE 3 MISSING SCREWS AND PUT IT ALL BACK TOGETHER

SWEET

DAVOS69

HOPE YOU DONT MIND BAD SPELLLLLING.........

Aug 25, 2006 | Sony Handycam DCR-TRV30 Mini DV Digital...

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