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Model 880 Swift Binocular Zoom Microscope Each zoom element consists of 2 co-axial tubular brass lens units, the outer of which rotates and in which there is a spiral groove. A nylon-headed screw, fixed to the inner unit, allows this unit to move up and down to alter the image size. Each zoom unit has a ring flange securing it to the main body and a number of small grub screws seem to allow minor adjustments. The inner retaining piece for the nylon screw has come loose and can be seen inside the inner zoom unit. My main question is whether this lens element can be detached from the body and how this can be done in order to secure the nylon screw into the spiral groove holding it to the inner unit. If you can also help me source a technical manual and a schematic parts diagram I would be most grateful. Kind regards, Chris Micklethwaite

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Posted on Jan 02, 2017

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  • 45 Answers

SOURCE: problem with MF-02 binocular microscope stage

I think your problem lies in the way the stage is limited upwards. On top of the stage, right behind it where it slides against the arm, there should be a little screw.  This screw limits the movement of the stage to a certain point upwards.  If the limit exceeds the adjustment gear and its opposing track, then the stage just goes up one notch and then it clunks down.  If you screw it down the stage is limited further down, if you screw it up it's limited a bit higher.  The point of this screw is to prevent objective and slide damage.  Try adjusting this little screw a bit further down and see if it still 'clunks' when you turn it up.  After that we may work on properly adjusting it.  If not, please post again with whatever detail you can provide to aid you with this problem further.

Posted on Jun 09, 2008

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mistersony
  • 320 Answers

SOURCE: Loose Manual Focusing Lens Device

There is a bulletin (E31529192) that describes your exact problem and recommends replacing the screws with new different screws to prevent this from happening again. The front section around the lens assembly is only held by 3 screws so access isn't a big deal, just be careful if you try this because there is a cable connected to the microphone that is easy to damage. The new screws are part number 3-056-559-01. Be sure to rate this solution. Thanks!

Posted on Nov 01, 2008

Gryfox
  • 216 Answers

SOURCE: nikon dx swm 18-55 mm

This is a very common problem. It sometimes happens without cause, sometimes by tightening or removing a filter. There are a couple of keys that keep the front lens from rotating while zooming that are very thin and easily bent. They have to be removed and straightened, and the rear piece you see floating has to be reinserted. It's about a $40 job and half-an-hour by a local independent repair shop. Expect to pay Nikon twice that.

Posted on Jan 04, 2009

SOURCE: EF 24-70 lens droop...

The zoom creep is an easy fix for Canon. I really do not recommend trying to tighten it yourself, since that would void your warranty.
It is usually free to tighten the zoom ring.
/Chris

Posted on Jan 19, 2009

  • 1 Answer

SOURCE: 25-30 year old Bamix M100 - 240V 100W

Those small plastig bungs do come out, you will need a fine probe to prise them out then you will see 2 philips head screws which hold it all together, not sure how you will tighten your shaft though, looks like it might be moulded into the plastic retainer, good luck! on mine the motor bearings are seized,
regards,
Dave Pary.

Posted on Mar 18, 2009

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Digital cameras tip : zoom


Zooming is addition important application with digital cameras - there are two kinds of zoom: optical zoom and digital zoom. An optical zoom agency is one that relies on the lens itself accumulative the ablaze advancing in, so that what is abroad appears beyond and afterpiece in the consistent image. An digital zoom agency is one that takes the consistent angel and magnifies it afterwards the fact. Needless to say, an optical zoom agency is abundant added important than a digital zoom.

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Please Help. I have a Nikon 18-200mm f/3.5-5.6 G ED-IF AF-S VR DX. I occasionally remove the front lens element assembly to clean the inner lens element as it gets dusty. The front lens element assembly...


Hi,IF I were you I will search the eBay for a same lens as " parts only " which means lens does not work but you can use the some parts of it ..There are a lot on ebay..one example is below URL..pls visit both..
Brand name services always do this..Since you were doing unauthorized repair ,they do not like it..
Hope this helps! Take care and please Remember to rate/vote and
give me 4 Thumbs Up for me to continue for Helping out the Community :)
Thanks

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Item condition:For parts or not working

http://cgi.ebay.com/Nikon-Nikkor-18-200mm-ED-AF-S-3-5-5-6-READ-/200635517251?pt=Camera_Lenses&hash=item2eb6cf0943
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parts;
http://photography.shop.ebay.com/Lenses-/3323/i.html?_kw=Nikon&_kw=parts&_dmpt=Camera_Lenses&_stpos=&gbr=1

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How to achieve full zoom with a Nikon 55-200mmf/4-5.6G ED lens?!


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3) Are you sure you were turning the zoom ring and not the f-stop ring? The zoom ring is labeled 200 on one end of the scale and 55 on the other. It is also the widest ring on the lens barrel. When you rotate it, the physical length of the lens will lengthen as you rotate it clockwise (viewed from behind the camera) and shorten as you rotate it counter-clockwise.

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