Need to know what type of oil to use

Since there's only a very small amount of light reaching the lens system of microscopes when on high powers, A special technique (called >>>oil immersion
Not using this technique must be the cause of the problem you are experiencing.
eHow will guide you through the exact procedure of using the oil immersion technique: http://www.ehow.com/how_8431358_focus-high-power-objective-microscope.html
Good luck in exploring the micro world!

Olympus makes good microscopes so you have done well and stereo microscopes are so much nicer to use than singles. As far as cleaning the lenses goes, buy a good quality camera lens blower brush and also a can of compressed air like the ones used for computers. Blow any loose dust hairs etc off with the can of air and then use the brush for anything remaining. If there are fingerprints or grease on the lenses then clean them using camera lens cleaning fluid and lens tissue but make sure all debris and dust are removed first or you may scratch the lenses. In general try not to use anything more than air and a brush unless absolutely necessary. Another option for removing fingerprints etc is to use a "lens pen" with caution. The ones sold for cameras work well but may be too large. They make some smaller ones for cleaning camera sensors and those might work better for the relatively small microscope lenses or just cut the regular lens pen disk to make it smaller. It is just as important to make sure the lens is dust/debris free when using the lens pens.
Low power stereo microscopes often allow you to put on a single magnifier lens in front of the main objectives to increase magnification. Do a bit of searching to find what are options for your model.

There is probably oil on the outside of the object. You can try cleaning it off with some alcohol and a que-tip. If that doesn't work, the seal of the objective has probably failed and oil has seeped up inside. Otherwise the other problem that can cause it is to many small scratches to the outer lens of the objective. This can happen when the objective lens crashes through a slide.

One thing you can do to protect your objective from this happening, is that most microscopes have some sort of up stop lock, which is designed to prevent the stage from coming past a certain point. On your model, this is most likely a screw that sits just behind the stage.

If the cleaning doesn't work, the usually replacing it is the most economical option. This model has a pretty standard object type, so any object that has a 160mm tube length and has standard RMS threading should work with it just fine.

The lens is not designed to be removed and the camera will not function if you do manage to do so as it will report a lens error. To avoid this will involve bypassing various microswitches, simulating missing inputs and making other custom modifications to your camera. It's not impossible but you'll be on your own with the modifications, adapting and inventing as you go.

Ideally you either need a suitable SLR with an adaptor, or a camera which will accept an adaptor onto the front filter fitting (not all compacts and bridge cameras have them though).

You'd best contact Olympus directly for suggestions: they're a major microscope manufacturer and have always had the best solutions for using their cameras with microscopes. They have in the past produced a surprising number of microscope adapters for their models and have often produced special versions of their cameras designed solely for use with microscopes, endoscopes and similar non-standard applications.

This kind of small digital camera, their lens structures are quite compact and complicated. The lens are covered one layer by one layer, even if you can reassemble the lens glass into a whole one lens, you still need some very professional instruments(To my knowledge, OLYMPUS company makes these series of instruments, cause I work ed for OLYMPUS Microscopes over 10 years in China ) to accurate and test the focus founction is working correctly or not. So, it is not that simple as to just reassembing the lens glass.

Here you are. http://www.cas.vanderbilt.edu/bsci111a/equipment/compound-microscope/microscope.gif

http://www.olympusmicro.com/micd/index.html

Here is the link to the Olympus website that explains about this microscope. You might be able to locate the accessories through this site.

The Nikon Optiphot 2 tube length is 160 mm DIN finite. It is a 1990 vintage microscope. Any objective lens with the standard RMS thread, -160 engraved on it will work. It will not work with other brnads with the infinity symbol engraved on it or infinity tube length Nikon 200 mm, CFI60 objectives for 2000 vintage to present microscopes. - Lawsen Lew

No. Your camera is not compatible with a microscope, but Olympus does manufacture a DP-10 microscope digital camera system designed specifically for medical and industrial use. For more information about this, please contact the Olympus Precision Instrument Division at 800-446-5967.

No. Your camera is not compatible with a microscope, but Olympus does manufacture a DP-10 microscope digital camera system designed specifically for medical and industrial use. For more information about this, please contact the Olympus Precision Instrument Division at 800-446-5967.