Are spare objectives & eye piece lenses available for my J Swift &Son Compound microscope No23102 ?

Compound Microscope

• Compound microscopes can be found in most biology and science classrooms. They are electrically operated and use light to enhance the image of a cell. They will have multiple lenses for viewing.
  

Dissecting Microscope

• Dissecting microscopes are also known as stereo microscopes. They have low magnification and are also light powered. These microscopes can view objects larger than what a compound microscope is able to handle, in three dimensions.
  

SEM

• A Scanning Electron Microscope uses electrons instead of light to create an image. These microscopes produce three-dimensional images with high resolution and magnification. They also have a larger depth of focus.
  

TEM

• Transmission Electron Microscopes use electrons instead of light to create an image. The material prepared must be very thin. The beams of electrons that pass through it give the viewer high magnification and resolution. These give two-dimensional images.
  

Unfortunately, if you indeed have water or oil inside the lens it is probably ruined. Obviously the seals have deteriorated away. Objectives are practically irreparable. They cannot be disassembled. Very reasonable new and used Replacements are available at: Delta Optical Instruments, Inc. Inquire at: [email protected]

Starting at the bottom of the Compound Microscope scope working up: The base of the scope houses the illumination system and the field lens. It also provides weighted stablility.
The field lens is where the light comes out of the base. This lens focuses the light from the bulb directly into the substage condenser.
The arm of the scope supports the rest of the scope.
Directly above the field condenser is the substage condenser. The substage condenser collects the light and condenses it further into a more concentrated beam of light. With the substage condenser you can control the amount of light and to some degree the defraction of light. This is helpful in adjusting the "contrast" in the image.
Working up, you find the "stage" which is a platform to support the specimen. The stage may or may not have a specimen holder and a set of specimen holder control knobs.
The magnifying lenses are called the objectives. They look like barrels pointing down at the stage. These are usually marked 4x, 10x, 40x, and 100x. These magnifications are further multiplied by the power of the eyepieces which are usually 10x. So, when using the 4x you are actually seeing the specimen at 40x and when you are using the 10x objective you are actually seeing the specimen at 100x and so on. The 4x is used to "scan" the specimen so that you can find the most interesting area and then focus in further on that region. It is very hard to find exactly what you want to focus in on starting with the higher magnifications. Always start with the low magnifications, 4x or 10x.
The objective lenses are mounted on a rotating turret for easy selection.
Moving on up the scope is the head. It is comprised of the eye tube and the eyepiece. If you have two eyepieces your scope is referred to as a "Binocular Compound Microscope". If you have only one eyepiece, your scope is a "Monocular Compound Microscope".

You can buy generic condensers off VWR, but you might be better off asking Ward's (www.wardsci.com) for the part, as they're distributing swift microsopes now.

If your stage is still in its correct orientation then make sure your objective lenses are screwed in tight as well as the eye piece being secured correctly. Try using different objectives (don't go too high or you may damage your lenses if you ram it into your specimen) and using the fine and course focus. If the you still cant focus using different objectives it's quite possible that your mirrors or lenses inside the microscope have been knocked loose. I would then recommend only having it repaired by a certified microscope technician. If it is still under warranty take it back to the store of purchase or send it back to the manufacturer.

Swift microscopes use standard objectives. You can get those from basically any source that sells them like VWR, Fishersci, Wardsci, Carolina biological, etc.

If you have a lens cleaner for eye glasses or a camera try it first. How much alcohol did he use? allow the lens time to dry

Hello--I have recently bought Swift eyepieces and objectives on UK Ebay.They come up regularly and sell for £4-£18 dependant on spec--any help?kind regards martin r

sir,

There is two kind of eye-piece in microscope one is (push in ) and second one is tread mounted.

As per my i know you have push in eye piece.

See in side that cylinder where you are pusing in this eye piece there is two jows is there it resist to come in as well as when you take it out.that pressure of jows you should be increase.

your problems will short out.

INDRAVIJAY

I seem unable to get a user or service manual online, however at a guess I would think that the retaining mechanism is inside the "head" of this beastie, so in order to access you would need to undo the screw that retains the viewing piece, this should give you access to the internals, however you have to be vary carefull that you do not contaminate the microscope. it may be easier to send it to be "cleaned" and hopefully when it returns it will have been tightened up.