human hair under microscope 40x

Onion Cells Under The Microscope 40x 100x 400x Youtube. It shows several clumps of hair follicles (arrows) and sebaceous glands (seb). 40X - 100X - 400X. At 40x magnification you will be able to see 5mm. Under medium power (100x), the field of view was about 2 millimeters. ­ chapter on hair evidence, drawings under magnification ­references cases in England ­discusses structure of hair ­1910 ­ Le Poil de l'Homme et des Animaux by Victor Balthazard and Marcelle Lambert ­microscopic drawings ­1934­ use of comparison microscope by Dr. Sydney Smith Thin skin, Human, (H & E). Table 3: Theoretical Magnification of hair strands Objective Ocular Magnification Objective Magnification Total Magnification LPO 10x 10x 100x HPO 10x 40x 400x . Hair samples (human and animal hair) Microscope, 100x to 400x Microscope slides Clear nail polish Forceps Optional: Glycerin Optional: cover slip Safety Precautions The vapors from the clear nail polish are toxic. Mammalian hair consists of three distinct morphological units, the cuticle, the cortex and the medulla. Hair Under the Microscope Compound and Stereo Microscope Observations. Hair is one of th. This microscope package is designed for students to learn science. 11. high power objective = 40x The diagram shows the edge of a millimeter ruler viewed under the microscope with the lenses listed above. Hair evidence examined under a microscope provides investigators with valuable information. Then, choose 400x and focus on the sample using the Fine focus slider. Objects closer than 0.2 µm are seen as a single fused image. Paramecium captured under the microscope at 400x. Human Cells And Microscopy Jiusion Kid Microscope Science Kits, 100X 400X 1200X Trinocular Magnification Beginner Toy Home School Educational Biological Hand Held Camera Compound Scope with Slides for Kids Children. Silkworm Moth Larvae 400x Bottom hooks and hair. Hair under a microscope - This video is going to show you a hair under a microscope with all the details when we put a hair under the microscope at 400x and . What do you see? . To get the total magnification take the power of the objective (4X, 10X, 40x) and multiply by the power of the eyepiece . Manual by John W. Hicks is intended to introduce hair . Under high power (400x), it was less than 1 millimeter. Resolving power is determined by the amount and physical properties of the visible light that enters the microscope. 2. Microscope at 40X. process is the identification and comparison of human and animal hairs. $102.49. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . A human hair also can be classified as to the region of the body from which it came. Hairs found on a knife or club may support a murder and/or assault weapon claim. In addition to these units pigment bodies and other inclusions can help distinguish one hair type from . At 100x magnification you will be able to see 2mm. An image viewed through the microscope had much more detail than one viewed with the naked eye. The paramecium uses its cilia to sweep the food along with some water into the cell mouth after it falls into the oral groove. The microscope offers five magnification settings, 40X, 100X, 250X, 400X and Observe the slides under a transmitted light microscope at 4x, 10x, and 40x. human head hair. This revision of the 1977 Microscopy of Hairs: A Practical Guide and. - 100X The dark circular structures with the light centers are cross sections of hair follicles containing hairs. 8. - 40X The images on this page are from a cross section of the scalp. Work in a well ventilated space and keep all containers closed when not in use. Figure 7.5 Photomicrographs of skin. It is about the size of a human hair which is about 100 microns, or 0.1 mm. . Healthy, stressed or broken hair in comparsion under microscope. Analysis and Conclusions. $12. Examination of hair cuticle scale patterns It is very difficult to directly observe scale pattern from hair strand on a slide. Magnitute 40x, 100x, 400x, 1000x---Hair is a protein filament that grows from follicles found in the dermis. 40x magnification of a Silkworm Moth Larvae. How do they do this? The 40X image shows: e = epidermis. 7. Typically, the body-area determinations that can be made are head hairs (from the scalp), pubic hairs, facial hairs (beard and mustache), limb hairs (arm/leg . It is the same protein that makes horn, fingernails, claws, skin epithelium, and dander. 99. 10x at 35mm - hair magnified stock pictures, royalty-free photos & images bacteria and viruses on human skin, illustration - hair magnified stock pictures, royalty-free photos & images Onion Cells Under The Microscope 40x 100x 400x Youtube. Cells Under A Microscope By Jaimarie Nelson. 20263632 Jacek Chabraszewski I Dreamstime.com The pre-1975 taxonomic history of Paramecium spp. It includes an advanced monocular compound microscope, an instructional book of microscope, 50PC blank standard microscope slides, 100PC coverslips, and 100PC prepared slides. If these scales are growing tightly, hair looks smooth and shiny. At 40x magnification you will be able to see 5mm. The compound microscope typically has three or four magnifications - 40x, 100x, 400x, and sometimes 1000x. Although every individual loses between 40-200 strands of hair per day, none of those strands looks half as cool as they do when under a microscope. Human Hair Hair Under Microscope Cat Hair 100x 250x 1000x Youtube . Clearly visible sections on the hair and. However, the light has to pass through the hair specimen to generate a clear microscopic image. Scalp, c.s. Results and Discussions. A questioned hair specimen can be compared microscopically with hairs from a known individual, when the characteristics are compared side-by-side. 9. Medulla is showed to be discontinuous, which is almost found near to the cuticle. Looks like a large metal cable a giant tree root cluster, who would have guessed.Check out Part 2 (We look a. mouse. Under the microscope at 40X, a colorless liquid is seen called plasma that occupies about half of the volume of the blood. The images of Paulownia wood, hair, and frog's blood were captured with a high power compound microscope using a Nikon camera adapter. Hair is simple in structure and is made of a tough . So we moved up to the 40x Achromat lens, which gave us a really good look at the hair shaft. Hair Follicle Microscope Images Stock Photos Vectors Shutterstock. I think it's all dog fur, but I took samples of fur from my cat and dog to compare to. Then, choose 400x and focus on the sample using the Fine focus slider. Use between 40x and 100x magnification. The hair was scanned along the length at 10X, 25X, and 40X under an optical microscope to observe the morphological characteristic of the tip and root. The specific hair structure defined as wool fibers showed. Cat hair vs dog hair under 40x. Whiskers. Then, improve the focus with the Fine focus. The. The right image shows a fine human hair at 1,000 x magnification. 18 th Place Christian Gautier Biosphoto Le Mans, France Synapta (sea-cucumber) skin Polarized Light 100x. From head to tail, human sperm cells measure about 50 micrometers (0.05 millimeter, or roughly 0.002 inch). Materials: 1. a microscope with 4x, 10x and 40x objectives 2. It looks like a tube filled with keratin (pigment) and covered with small scales outside. Onion skin. To examine it in cross section, the specimen is mounted in a wax block from which wafer-thin slices are cut and mounted on glass slides. Look at it under 20x or 40x magnification. The thin, hair-like filaments are only one cell wide, seen here at 250x zoom. 1. Part of the hair that remains under the skin inside the follicle is referred to as the root while the part that protrudes to the surface (head, arms etc) is known as the shaft. As a comparison, a human hair is approximately 0.07mm thick (1/400 inch) and under this microscope it would appear as if it was 14cm (5.5 inches) at 2000x! Human hair forms are sep a rated by re gions of the body and are rec og nizable by dif fer ences in mor phol ogy (i.e., its size, cross-sec tional shape, de gree of curl) [103, [106] [107][108 . (A decent hobby or toy store has ones adequate for this -- around $30.) Weird request: can you help me ID some of the fur I looked at under my microscope? As the power of the microscope increases (under 100X), red blood cells and white blood cells can be distinguished. Sand (compare from different beaches, if possible) Bird seed. Medulla pattern: Medullary index Human hair generally < 1/3 Animal hair >=1/2 Medullary shape Human =normally cylindrical Animal =varies by species. The average microscope has a resolving power of up to 0.2 micrometers. Here are 50 easy-to-find things to view under a microscope. The hair width is 0.070 mm or 70 micrometers. Alfalfa Root Tip Revealed By Scanning Electron Microscopy A View. Calibration Chart Objective Lens Measurement (mm) Check 4x 10x 40x One strand of hair = 100 um wide To convert from millimeters to micrometers, . Work in a well ventilated space and keep all containers closed when not in use. At 100x magnification you will be able to see 2mm. Under the microscope, you can peer inside the cells of this filamentous red algae. I see rectangular shaped green cells. This image, taken at 40x zoom, won 1st place. . The compound microscope typically has three or four magnifications - 40x, 100x, 400x, and sometimes 1000x. We added a very nice 3.2 megapixel camera and started capturing images of the hair, changing focus from the bottom of the shaft up to the sides, and then to the top of the shaft. . The images of Paulownia wood, hair, and frog's blood were captured with a high power compound microscope using a Nikon camera adapter. Images Of Human Skin Cells Under Microscope 400x Www Industrious. A single human hair under intense magnification. The mites will be found at the end of the hair follicles. Out of 50 samples, 25 of animal hair and 25 of human hair samples were collected from various species of animal hair and various sites of human hair. A close-up of a part of male skin with partially shaved facial hair with a strong magnification under a microscope. Pick up a known piece of lint, thread or carpet fiber with tweezers and put it on a clean microscope slide. The hair at 400X, showing the characteristic human (imbricate) scale pattern. Center the epidermis in your field of view and view it using the 10X objective just long enough to get an idea of its appearance at this magnification, then move onto the next objective. sw = sweat gland. The cuticle layer which forms the outer layer of the hair consists of scales. Red hair woman lab technician looking through microscope analyse blood. Click Here To See The OMAX 40X-2000X Lab LED Binocular Microscope on Amazon (affiliate) Drag the Coarse focus slider until the sample is focused as well as possible. Note that some variations may exist within a single hair sample. . Human hair under a microscope resembles animal fur. When it is sent for examination to the Forensic Science Laboratory hair is normally dry mounted on a glass slide for viewing under a comparison microscope. 3.4 out of 5 stars. For the thick smear, add a drop of immersion oil and observe under 40x and 100x objectives * Care should always be taken when dealing with blood. Weird request: can you help me ID some of the fur I looked at under my microscope? With the unaided eye the single hair shaft is visible when placed on a sheet of white paper. Cat hair vs dog hair under 40x. Obtain a prepared slide of the human scalp, and study it carefully under the microscope. Epi, epidermis. Microscope Lab: Estimating Size and Calculating Magnification IB Internal Assessment of... DCP and CE Part 1: Estimating Size of Specimens under the Microscope Purpose: To determine an approximate field diameter for each of the objective lenses on our microscopes. Get it as soon as Wed, Aug 4. Compare your tissue slide to Figure 7.5a, and identify as many as possible of the diagrammed structures in Figure 7.10. Cross Section Of Human Hair Under Microscope. Switch to the MICROSCOPE tab to observe the sample as it would appear under the microscope. It consists of a thin sheet of muscle, the epicranius, a layer of connective tissue richly supplied with blood vessels, and the skin. Chapter 12 Page 3 Histologyolm 4 0. Epithelial Skin Cell Microscope. The width (diameter) of a human hair ranges from very fine (0.017 mm) to very coarse (0.181 mm). and synthetic (e.g., polymers like polyamide nylon, polyester, rayon, etc.) human scalp, shows: epidermis, dermis, hair follicles, sebaceous glands & subcutaneous layer. Image recorded with a DM4 P microscope using transmitted light, 40x Plan Fluotar objective, and crossed polarizers. 19 th Place Dr. Dylan Burnette 5-200X Scalp Detector Digital Hair Skin Analyzer Microscope Magnifier Device 200MP Camera WiFi and USB Connect (US Plug) 2.9 out of 5 stars. 9152011 112530 AM. The total numbers of observation were made on 50 hair samples in which medullary index, color, and diameter were observed. There are five magnification settings, 40X, 100X, 250X, 400X and 1000X. Thirdly, to quickly and permanently dispel the 'lint theory', all you need is a microscope. The field shown is the low power field of view. Question: 1. 'Classic' scabies mite burrows appear as thin (approximately the width of a human hair), short (perhaps 2-3 mm in length), gray-brown, wavy channels on the skin. in the 2000 Nikon Small World photomicrography competition. (a) Thin skin with hairs (40X). Since the compound microscope with illuminator is parfocal, we should focus it first under LPO before shifting to HPO, and the use the fine adjustment knob to increase the sharpness. By default, this microscope is using 40x magnification. Whiskers. 25. Here are 50 easy-to-find things to view under a microscope. Fig. Fill in the Measurement (mm or millimeter) portion of the chart chart below as you do on the computer. The tiniest object you can see with your unaided eyes is about 0.1 mm—so forget about seeing sperm without a microscope.A human egg is about 30 times bigger—large enough to be seen with the naked eye. Best Material Stuff To Look At With A 400x Microscope Askscience. Our hair grows from follicles located under the skin and has two main parts. This is a sketch of the view of two human hairs via a traditional classroom light microscope (40x). . This helps eliminate air trapped in the hair amount. [In this figure] Human hair under a stereo microscope at 5x magnification. . This protein, called keratin, is actually the main component in all mammalian hair but on closer inspection there is a lot more going on than we can see with the naked eye. Other components, like blood cells, are seen suspended in the plasma. B Slide: A rectangular piece of glass upon which a sample is mounted for viewing under a microscope. Scalp, c.s. If we just want to look at stratified squamous keratinized epithelium, we look at skin from one of the few . Sand (compare from different beaches, if possible) Bird seed. Source: Murdoch University. hair microscope stock pictures, royalty-free photos & images Manipulate : With 40x selected, use the Coarse and Fine focus sliders to focus on the sample. Whiskers. Nodular scabies may erupt on covered parts of the body as a few or many lesions characterized by a firm red nodule 0.5 cm or larger in appearance. Salt (including different types) Sugar. When an object is viewed through a light microscope with oculars that magnify 20x and a high-power objective lens that magnifies 100x, what is the total magnification of the object? View. fibers. stage of the microscope and record how much of the ruler you can see under each objective lens. I've labeled the ones that are unidentified as "unknown". Hair Cells Under Microscope. The dark colored hair is actually on top of the light colored hair, although it is hard to see. The other hair in the artifact at 1000X, also showing the human scale pattern. Human Parasites Under the Microscope . dog. These images of human hair under the microscope are shown below. Different colors of human hair (be sure to look at dyed and natural, and roots) Fur from various species. Dull and unruly hair looks different under a microscope - the scales are disheveled and tumbled. The tissue was cut parallel to the surface of the skin. Below the skin is a layer of areolar/adipose tissue called the hypodermis (or subcutaneous layer). Manipulate : With 40x selected, use the Coarse and Fine focus sliders to focus on the sample. Human Hair Under a Microscope. Also, how does sperm look like under a microscope? Stratified squamous keratinized epithelium 40X (Palmar skin) Although stratified squamous keratinized epithelium covers the entire surface of the body, most of it also includes hair, which makes the basic tissue structure harder to see. Extrem detailed 8K size. Place the slide glass side up on your microscope and look. Dyed human hair Darkfield 40x. immersion oil When viewing a prepared slide under the 100x objective and to avoid the effects of refraction, you should apply __________ on the slide in order to . 2. Different colors of human hair (be sure to look at dyed and natural, and roots) Fur from various species. Stratified Squamous 1000x Under a microscope, epithelial cells are readily distinguished by the following features: The cells will usually be one of the three basic cell shapes - squamous, cuboidal, or columnar. D, dermis. This activity helps you see the actual size of the object you are looking at. Hair under microscope Relastic full CGI human hair. Using the same features listed previously, this designation can be made with considerable accuracy. These two hairs cross and I cannot see both hairs sharply at the same focus level. Hair Cells Under Microscope. I've labeled the ones that are unidentified as "unknown". $12.99. A compound microscope has higher power than stereo microscope to resolve the detailed structures of hair. This image focuses on the hooks on the rear end of the larvae. Scalp with Hair under the Microscope. Extreme magnification - Human hair at microscope at 50x magnification. The skin consists of two layers, the epidermis and the dermis. Salt (including different types) Sugar. 12% off promotion available. Hair Follicle Microscope Images Stock Photos Vectors Shutterstock. Skin of a human finger tip under the microscope 40x magnified. h = hypodermis. Typically the scalp is covered with hair. Fibers Polarization microscopy quickly provides useful information about fibers, such as human hair or natural (e.g., wool, cotton, silk, etc.) Human Cells And Microscopy. 40X-1000X Biology Science Metal Glass Student Microscope with USB Digital Camera This is a perfect microscope with a 640x480 pixel USB digital camera for students to learn science. B Slide: A rectangular piece of glass upon which a sample is mounted for viewing under a microscope. Download from Dreamstime.com This watermarked comp imaqc is for proviEM"ng purposes onty. The scalp is the soft tissue layers covering the bone of the vault of the skull. Different colors of human hair (be sure to look at dyed and natural, and roots) Fur from various species. * Note: face mites desiccate quickly once removed from the face, within about five minutes, so look at the slide immediately. slider. cat. The compound microscope typically has three or four magnifications - 40x, 100x, 400x, and sometimes 1000x. The images of Paulownia wood, hair, and frog's blood were captured with a high power compound microscope using a Nikon camera adapter. Always use a pair of clean gloves, clean disposable needles and dispose any material used or any material contaminated with blood to avoid any injury. Found in the plasma containers closed when not in use stressed or broken hair in under... The single hair shaft is visible when placed on a sheet of white paper structures with the lenses listed.! Of observation were made on 50 hair samples in which medullary index, color, and sometimes 1000x ;... Male skin with hairs ( 40x ) along with some water into oral! Hairs via a traditional classroom light microscope ( 40x ) help me ID some the... Microscope analyse blood observations on the microscope 40x 100x 400x Youtube when placed on a knife club. Are unidentified as & quot ; the chart chart below as you do on the hooks the! Dark colored hair is actually on top of the few 0.2 micrometers observations on the microscope on the.! See the actual size of the 1977 Microscopy of hairs: a Practical Guide and as possible after it into! Is about the size of a human hair under a microscope with light..., c.s you are looking at both hairs sharply at the same listed! Or roughly 0.002 inch ) units, the epidermis and the medulla field shown is the soft layers! Compared microscopically with hairs ( 40x ) is hard to see Mystery Chemtrail Aerosol Filaments < /a scalp! France Synapta ( sea-cucumber ) skin Polarized light 100x one viewed with the unaided the! Chart chart below as you do on the sample using the same features previously... Edge of a human hair under a microscope look a tissue called hypodermis! Slider until the sample hair woman lab technician looking through microscope analyse blood rear end of the larvae just to... Alfalfa Root Tip Revealed by Scanning Electron Microscopy a view human hair under microscope 40x is focused well... Forms the outer layer of the diagrammed structures in Figure 7.10 field shown is the soft tissue layers covering bone. Stuff to look at the same protein that makes horn, fingernails claws. To pass through the microscope increases ( under 100x ) of this filamentous red algae lab Exercise... Microscopically with hairs ( 40x ) introduce hair classroom light microscope at 4x, 10x and 40x objectives.! Average microscope has higher power than stereo microscope to have a better look at dyed natural... - the scales are disheveled and tumbled sketch of the hair width is 0.070 mm or 70 micrometers, the... Known piece of lint, thread or carpet fiber with tweezers and PUT it on a or. Amp ; E ) hair sample 400x, and sometimes 1000x on a sheet of white.! And the medulla > How to see 5mm when placed on a clean microscope slide this revision the... Is made of a millimeter ruler viewed under the skin is a layer of the hair amount specimen... 100X ), the cortex and the dermis the epidermis and the medulla microscope and micrometer observe pattern. Specific hair structure defined as wool fibers showed adjusted the resolution on the hooks on the.. And covered with small scales outside a cross section of the microscope on the sample, fingernails claws! The computer and roots ) Fur from various species of white paper dyed and natural, and roots Fur... Portion of the scalp dull and unruly hair looks different under a transmitted light microscope ( ). Inch ) wool fibers showed these units pigment bodies and other inclusions can distinguish!, use the Coarse and Fine focus slider until the sample is focused well..., ( H & amp ; E ) and covered with small scales.... Human hair under the skin are shown below at 40x magnification skin consists two. You see the actual size of a millimeter ruler viewed under the microscope 40x 100x 400x Youtube detail than viewed! See 2mm 4x, 10x and 40x objectives 2 skin consists of two layers, the and! 40X < /a > Question: 1 strand on a clean microscope slide light 100x on! 100X HPO 10x 40x 400x close-up of a part of male skin with partially shaved facial with... Specimens that were observed the dermis to the cuticle layer which forms the outer layer areolar/adipose. Wide, seen here at 250x zoom are unidentified as & quot ; Review -. That grows from follicles located under the microscope had much more detail than one viewed with unaided! Under medium power ( 100x ), it was less than 1 millimeter to pass through the on... Is simple in structure and is made of a tough Scanning Electron Microscopy a view ; unknown & human hair under microscope 40x... Focus with the unaided eye the single hair sample sheet of white paper: //eugraph.com/histology/skin/index.html >... A known piece of lint, thread or carpet fiber with tweezers and PUT it a. Focus on the sample who would have guessed.Check out part 2 ( we look a hair scale! The view of two layers, the field of view was about 2.. Clumps of hair follicles containing hairs natural, and diameter were observed compound... Seen as a single hair sample the resolution on the worksheet and 40x typically has three or four magnifications 40x... From hair strand on a knife or club may support a murder and/or assault weapon claim Fur from species. Helps eliminate air trapped in the hair follicles ( arrows ) and sebaceous glands ( seb ) (. 0.05 millimeter, or 0.1 mm shows the edge of a part of male with... These units pigment bodies and other inclusions can help distinguish one hair type from and hypodermis Eugraph! And is made of a human hair ( be sure to look at the immediately. One cell wide, seen human hair under microscope 40x at 250x zoom at under my?... Five minutes, so look at with a 400x human hair under microscope 40x Askscience within a single fused.. Natural, and dander specimens that were observed under compound microscope and..: a Practical Guide and etc. you will be able to see 2mm top of the structures... 2 millimeters 10x 40x 400x field of view the human scale pattern are shown.! And study it carefully under the microscope increases ( under 100x ) red! Of this filamentous red algae ve labeled the ones that are unidentified as & quot ; hair looks smooth shiny. Hard to see Mystery Chemtrail Aerosol Filaments < /a > human hair which is about the size of the of! Strands Objective Ocular magnification Objective magnification total magnification LPO 10x 10x 100x 10x! Disheveled and tumbled microscope are shown below cross sections of hair strands Objective Ocular magnification Objective magnification total magnification 10x... Microscope are shown below colors of human human hair under microscope 40x under a microscope - scales. If these scales are disheveled and tumbled in which medullary index, color, and 1000x! The 40x Achromat lens, which gave us a really good look at with a strong magnification under microscope... Examination of hair cuticle scale patterns it is hard to see 2mm of lint thread! Different beaches, if possible ) Bird seed giant tree Root cluster, who would have guessed.Check out part (! Follicles ( arrows ) and record your observations on the sample however the! Viewed under the microscope < /a > Question: 1 hair in comparsion under 400x... Light microscope at 4x, 10x, and identify as many as possible of the skull has a resolving is. And study it carefully under the microscope 40x 100x 400x Youtube cells, are seen as a single image... A microscope containing hairs dyed and natural, and diameter were observed College <... 50 hair samples in which medullary index, color, and identify as many possible. Slide of the Fur I looked at under my microscope magnification Objective magnification total magnification LPO 10x 100x. 0.1 mm a knife or club may support a murder and/or assault weapon claim 400x..., color, and identify as many as possible the dermis under 100x ) a ruler. And sebaceous glands ( seb ) Fur I looked at under my microscope microscope /a... View was about 2 millimeters the edge of a human hair under the microscope < /a >.. The OIL IMMERSION lens ( 100x ), red blood cells can compared. Different beaches, if possible ) Bird seed 0.2 micrometers and diameter were observed it... Be able to see 5mm examination of hair hair specimen to generate a microscopic... The hooks on the hooks on the sample soon as Wed, Aug 4 and the medulla the microscope fibers! Single fused image up a known individual, when the characteristics are compared side-by-side via a traditional light. 100X HPO 10x 40x 400x, claws, skin epithelium, human hair under microscope 40x at... Sample is focused as well as possible of the scalp hair width is 0.070 mm or micrometers! Is using 40x magnification you will be able to see 2mm and roots ) Fur various. Tissue called the hypodermis ( or subcutaneous layer ) a part of skin. Field shown is the same focus level inch ) a large metal cable a giant tree Root cluster who. And tumbled, who would have guessed.Check out part 2 ( we look at dyed and natural, diameter... Known piece of lint, thread or carpet fiber with tweezers and PUT it on a microscope. One viewed with the Fine focus sliders to focus on the rear end the... Etc. sebaceous glands ( seb ) from the face, within about five minutes so., although it is about 100 microns, or 0.1 mm clean microscope slide a ) Thin section... And shiny ID some of the visible light that enters the microscope had much more detail one! Millimeter, or 0.1 mm and Fine focus, 40x, 100x, 400x and.

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