Question about Nikon D70 Digital Camera with 18-70mm Lens

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Repair lens when i rotate the lens or adjust it can't move smoothly but the focus is okey..

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You mean the focus is ok but when you zoom the lens, the movement is tight. Due to friction the iron guide rods on which the inner lense assembly moves get bend. an expert repairer will solve the problem in no time.

Posted on Feb 28, 2008

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Needs a clean perhaps - grit ingress - repair shop -will be expensive - of course

Posted on Feb 28, 2008

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1 Answer

Manual focus 'clicking', rather than smooth


i think that lens has a manual slider as well, set that to manual.

Dec 02, 2013 | Cameras

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When I turn on the overhead projector it displays picture on the ceiling. Need to adjust to show on the wall. Do not have a manual.


Hi! This is a pretty common problem with overhead projectors. At the top of the arm that's over the unit, there should be a lens unit. The unit needs to be rotated so that one lens points down, and one lens points towards the screen. Once the lens is rotated properly, the lens unit is moved up or down in order to focus. There's usually a knob to turn to move the lens up or down.

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The small knob that moves the slideto the left or right on the platform (the one furthest from the observer) is slightly loose, and instead of rotating in a smooth circular motion it rotates rather...


The knob you are talking about is called the x-axis control knob. It does not directly affect the focus. What affects the focus is the slight manipulation of the stage and or slide while you are adjusting the x-axis control knob. It only takes the slightest pressure to throw the focus off very far. Theoretically you could completely remove the specimen holder and move the slide around with your fingers.
The specimen holder may need to be replaced but without further more detailed knowledge of the mechanical problem I cannot instruct further.

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The zoom button isn't working and therefore when looking through the lens everything is blurry


Follow the instructions below to check and test the focusing of the camcorder.
Manual Focus
✤ In the following situations, you may obtain better
results by adjusting the focus manually.
a. A picture containing several objects, some close to the
Camcorder, others further away.
b. A person enveloped in fog or surrounded by snow.
c. Very shiny or glossy surfaces like a car.
d. People or objects moving constantly or quickly
like an athlete or a crowd.
1. Set the [Power] switch to [CAMERA].
2. Set the [Mode] switch to [TAPE] or [CARD].
(SC-D375(H)/D975 only)
3. Press the [Q.MENU] button.
 Quick menu list will appear.
4. Press the up/down arrow button to select <Focus>, then
press the [OK] button.
5. Press the up/down arrow button to select <Manual>, then
press the [OK] button.
6. To exit, press the [Q.MENU] button.
 The [MF] icon and the [MF/AF] status bar will be
displayed on the LCD screen.
7. Press the up/down arrow button to adjust the focus.
[ Note ]
Manual Focus is not available in the EASY.Q mode.

Make sure the lens is clean--use a soft cloth and don't press hard when wiping--use a circular motion starting from the center of the lens and working to the outside--that way, you wont grind dirt into the glass. If the lens is dirty enough, the camera will actually try to focus on the smudge or finger prints on the lens! Look into the lens and use the zoom button--do the interior lenses move forward and backward? The zoom button could be damaged(liquid or impact), or the lens could be jammed due to impact or liquid( I just fixed my sister-in-law's unit--had cola in it and sugar acts like super glue when dry.)(Lenses jam due to excess heat, too) NEVER leave a camcorder in a hot car. The grease used to enable the parts to move freely and smoothly can flow to sensitive areas and stick like glue.
If the focusing is indeed stuck, the unit must be repaired at a reputable facility. Don't send it in through a retail store unless under warranty.--Hope I was of help.---Rick

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1 Answer

How to focus manualy


remove the back,there is a wing nut you undo on the lens on each crt.you rotate the lens by
pushing left or right and pull up the menu and
visually rotate the wingnut by watching the menu on the screen by moving the wing nut
left or right.then you also have electrical focus
these 3 focus controls are located by removing
the front speaker cover and are located on the
right side.be careful not to turn the screen
controls that are with the focus controls.and
pull the menu up and adjust each control
individually.
the lens of each crt

Jul 15, 2009 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Blurry and dark webcam image even after i rotate lens


try adjusting the lens focus, the one I use has a screw in lens which adjusts the focus of the image being captured

Jan 15, 2009 | Philips J44414

2 Answers

Webcam


adjust the lens on the front turn it left or right until image is clear.

Aug 12, 2008 | Logitech 961462-0403 Webcam

1 Answer

Hitachi cp x880


well lens assembly has to be repaired. try avalontc.com

Jul 21, 2008 | InFocus LP70+ Multimedia Projector

1 Answer

Samsung Rear Projection Problem (not convergence)


The tv has 2 focus adjustments for each tube, mechanical and electrical.

1. Mechanical focus is set by looking at screen from back (through inspection plate on back of most samsungs) and rotating the lens assembly on CRT. loosen wing nut and turn lens assembly to go through focus and back to best position.

Put convergence pattern on screen and manually misadjust bottom red and green lines convergence so they can be seen through inspection hole.

With back cover of TV off you can usually reach your hand up beside the lens assembly to loosen the wing nut then rotate to adjust. Green is in the middle. The focus will be obvious when you rotate and look

When you are finished make sure the foam dust protector is not over any of the lens assemblies and the wing nut is tight.

2. Electrical focus - located at front of unit. the front grille/speaker cover is removed and maybe a cover over the front crt inspection hole.

In the inspection hole there is a black plastic "Focus/screen adjust Assembly" with 2 rows of 3 controls.

One row is focus and the other is screen. The middle controls are for green with R/B on either side. Usually the controls are labelled as "focus" and "screen". You want to adjust the focus controls, one for each color. Look for the focus or screen label imprinted in the plastic. Don't play with the screen settings.

With the same misadjusted convergence pattern you can see a red, blue and green line. Adjust green focus and watch green line for best focus. Do same for other 2.

Screen adjustments are very exact and delicate. The easiest way to deal with them is to turn color off in Customer adjust menu. Put any color tone adjustments in the middle (low, med, high, put at med).

You should have a b/w picture if there are no crt or other color related faults. If it is close to B/W leave screens alone.

If the pix is too green, then the green screen setting must be reduced a small amount. Do not play with these adjustments as most TV repairrers have a difficult time adjusting them.

If focus adjustments don't help then focus control or CRT may be defective. Needs expert to determine.

easyab

http://calgaryconvergencerepair.weebly.com/convergence-ics.html


Jun 24, 2008 | Samsung HCM4216W 42" Rear Projection...

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