**Objective Lens Magnification Scanning**. The magnification of an objective is the lens tube focal length (l) divided by the objectives focal length (f): 4x is a common magnification for scanning objectives and. when combined with the magnification power of a 10x eyepiece lens. a 4x scanning objective lens gives a total magnification of 40x.

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The magnification of an objective is the lens tube focal length (l) divided by the objectives focal length (f): Look at the ruler until a millimeter mark is lined up with the left edge of the circle. The majority of compound microscopes come with interchangeable objective lenses. which have different magnification powers.

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M = l / f. For example. if the eyepiecehas a 10x magnification and the eyepiece has a 40x magnification.then the.

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Place the slide that you want to view over the aperture and gently move the stage clips over top of the slide to hold it into place. Your microscope has 4 objective lenses:

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Multiply the magnification of the eyepiece lens times themagnification of the objective lens. A scanning objective lens provides the lowest magnification power of all objective lenses.

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It provides 4x magnification only. In addition to the objective lenses. the ocular lens (eyepiece) has a magnification.

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While viewing a microscope slide with the scanning objective lens the total maginification is 40x and the diameter of the field of view is 5.0mm. Objective lens ocular lens x objective lens magnification = total magnification scanning power low power high power total magnification eyepiece or ocular lens (magnify an image 10 times) objective lens (this microscope has 3 objective lenses.

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For example. if the eyepiecehas a 10x magnification and the eyepiece has a 40x magnification.then the. Use this objective first whenever looking at a specimen.

#### This Next Shortest Objective Is Probably The Most Useful Lens For Viewing Slides.

A scanning objective lens that magnifies 4x is the shortest objective and is useful for getting a general overview of a slide. A scanning lens has its name because itâ€™s low magnification. usually providing 4x magnification. While viewing a microscope slide with the scanning objective lens the total maginification is 40x and the diameter of the field of view is 5.0mm.

#### Place The Ruler On The Microscope Stage So That The Millimeter Marks Are Lined Up On The Diameter Of The Lit Circle As Shown In The Drawing.

A scanning objective lens provides the lowest magnification power of all objective lenses. *a scanning objective lens have the least magnification. The red stripe is located on the scanning lens.

#### Objective Lens Ocular Lens X Objective Lens Magnification = Total Magnification Scanning Power Low Power High Power Total Magnification Eyepiece Or Ocular Lens (Magnify An Image 10 Times) Objective Lens (This Microscope Has 3 Objective Lenses.

For example. a 10x eyepiece lens. multiplied by the 4x objective lens gives a total magnification of 40x. A scanning objective lens provides the lowest magnification power of all objective lenses. Scanning objective lens (4x) combined with the eyepiece lens. this lens will provide the lowest magnification power.

#### The Magnification Power Of The Eyepiece Is.

Scanning objective lens (4x) low power objective (10x) high power objective lens (40x) oil immersion objective lens (100x) 1. This shortest objective is useful for getting an overview of the slide (especially handy with some of the slides that contain whole organs like a section of the spinal cord. lung. digestive tract. ovary. etc.). Your microscope has 4 objective lenses:

#### Use This Objective First Whenever Looking At A Specimen.

4x is a common magnification for scanning objectives and. when combined with the magnification power of a 10x eyepiece lens. a 4x scanning objective lens gives a total magnification of 40x. Look through the eyepiece of the microscope. For example. if the eyepiecehas a 10x magnification and the eyepiece has a 40x magnification.then the.