Digital or Biological Microscope for 13 y.o.
Microrganisms, especially bacteria and cells, require the higher magnifications of a compound microscope such as the Meade 9600 Biological Microscope or the excellent LOMO MULTISCOPE BMH4-BF microscope (best buy). These are the types of microscopes found in the typical college science or research lab and are the most used type of microscope in microbiology and medicine. They require you to use and prepare slides.
For a serious compound microscope, look for a model with both coarse and fine focus, built-in illumination, light control via an iris and condensor and a mechanical stage. If you need to keep the budget down and/or don't have access to power, a model with a mirror is acceptable, but insist on a model with a fine focus control. It is very difficult to use high powers on a microscope without a fine focus.
A great choice in a budget microscope is the LOMO P-111 Modular Brightfield Microscope which can be upgraded at a later date with accessories, including a light. This microscope sells for less than $100, but it has absolutely nothing in common with other microscopes in its price range. It is a Russian (not Chinese) made stripped down research grade microscope without a binocular head, mechanical stage, built-in illumination, or oil objective. However, it does have dual focusing, an iris light control like an expensive model and it uses the same high quality eyepieces and objectives as much more expensive LOMO microscopes. Best of all, it can be upgraded at a later date with illumination, mechanical stage and oil objectives - something you cannot do with microscopes costing many times this price. It is priced low only because we purchased this model in bulk from LOMO in Russia. This is easily the best buy in a beginner's microscope on the market.
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