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GCSE Combined Science · key term
The microscope lens closest to the specimen, which provides the first magnification of its image.
Used by OCR
Specification B1.1a · Biology Paper 1
Revise: Light Microscopy and Staining TechniquesAbove the specimen is an objective lens; microscopes usually have several objectives with different magnifications. The eyepiece lens, which you look through, further magnifies the image produced by the objective.
Specification B1 · Biology, Chemistry, Physics, Combined Science
The lens closest to the specimen, which provides the first stage of magnification.
At high power, use fine focus and keep the objective lens clear of the coverslip.
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The objective lens, close to the specimen, produces an enlarged image. The eyepiece lens enlarges this image further. The stage supports the slide, while coarse and fine focus controls adjust the distance between the specimen and the objective lens to make the image sharp.
