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It is ideal for ho. Specifics: Condition: 100% Brand New Type: Microscope Color: White Light:Dual LED Illumination Objective Lens：4X 10X 40X Eyepiece:WF10X WF25X 2X erecting eyepiece Real Angle of View: 45 Degrees Magnification Maximum: 2000.00 Power Supply: AC100-240V(US Plug) or 2*1.5VAA batteries(not included) Product Dimensions: 29.5*16*15.5cm/11.6*6.3*6.1inch 40x-2000x Powerful Magnifications Option A： 10X Eyepiece & 2X Extender Lens 10X Eyepiece and 4X,10X,40X Objectives 10X * 4X = 40X 10X * 10X = 100X 10X * 40X = 400X 10X Eyepiece,2X Extender Lens and 4X,10X,40X Objectives 10X * 2X * 4X = 80X 10X * 2X * 10X = 200X 10X * 2X * 40X = 800X Option B: 25X Eyepiece & 2X Extender Lens 25X Eyepiece and 4X,10X,40X Objectives 25X * 4X = 100X 25X * 10X = 250X 25X * 40X = 1000X 25X Eyepiece,2X Extender Lens and 4X,10X,40X Objectives 25X * 2X * 4X = 200X 25X * 2X * 10X = 500X 25X * 2X * 40X = 2000X Using the microscope 1).To get started,use a prepared microscope glass slide, and place it on the center of the microscope Stage. Clamp it down with the Stage Clips. 2).After you have set up the microscope with the corresponding illumination,look through the Eyepiece. 3).Always start observing using the lowest magnification with the microscope.Use the 4X Objcctive Lens by rotating the Objective Lens Turret so that the 4X Objective Lens is aiming at the center of the Stag(when it is in the proper position it will click into place).The 4X Objective Lens will give a 40X(40 power)view with the I0X Eyepiece. Final Power is calculated by multiplying the Objcctive Lens Power by the Eyepiece Power(e.g，4 X 10=40) 4).Focus the microscope by slowly turning the Focusing Knob, until an image forms in the Eyepiece. 5).If the image appears too bright, the 5-Aperture Rotary Diaphragm until a comfortable view is seen. You can choose between aperture positions 5, 4, 3, 2 and 1. If the image is too dim, use the largest aperture and increase the brightness of the light source. 6).To increase magnification, rotate the Objective Lens Turret to center the 10X Objective Lens over the specimen for 100X, or the 40X Objective Lens for 400X, or change the eyepiece from 10X to 16X . When using higher magnifications focusing becomes more critical and the objective lens will come closer to the specimen in order to reach focus. Don't let the lens touch the slide as You may break the slide and damage the lens. Care and maintenance: The microscope is a high quality optical appliance. Therefore you should make sure that dust or moisture do not come into contact with your microscope. Avoid putting fingerprints on any optical surfaces. If dust or dirt should nevertheless have gotten onto your microcope, or the accessories, you should first remove this with a soft brush. Then clean the soiled area with a soft, lint-free cloth. To remove fingerprints from the optical surfaces it is best to use a lint-free, soft cloth ， to which you have applied some alcohol. After usage，you should stow the microscope and the accessories in their correct containers again. Note: 1.Please allow 1-3mm difference due to manual measurement. 2.Before you purchase,Please confirm whether suitable for you need. Package Included: 1X Microscope 1X Slide Set 1X Operating Accessory Set 1X 10X Eyepiece 1X 25 Eyepiece 1X Barlow Lens 2X 1X Power Adapter 1X Cleaning Cloth 1X Manual About Us Shipping Terms Returns Contact Us About Us About Artudatech Founded in 2009, Artudatech is focus on Sporting Goods/Musical Instruments/Toys &Hobbies/Computer/Tablet&Networking/Bike/Business & Industrial and other categories of products, and are a leading brand manufacturer. We have professional development and sales, and are involved in various products, providing customers with various high-quality products. Quality control measures are taken to ensure the reliability of our products. With high-quality products, business reputation, and excellent after-sales service, we have won a good reputation among customers worldwide. We will continue to provide customer service with professionalism, dedication and perseverance. Excellent product and considerate service. Let time verify quality and win the future with reputation.Meanwhile, we focus on development, and new products are introduced to the market every year. We welcome you to contact us for more information and look forward to working with you! Shipping Shipping Terms International Buyers – Please Note: 1. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. 2. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. 3.Buyers' Information: We strive our best to provide you the most reliable, affordable way of shipping service. But sometimes international delivery is highly depended on the courier company and local customs/duties. If you do not receive your item on time, please sent us ebay message immediately for further assistance. Thank you for your understanding. Terms We stand behind everything that we sell and will do everything possible to assure you are satisfied. When you receive your purchase if you are not 100% satisfied, please sent me ebay message and we will do our best to make you happy. If you still want to return your purchase, simply ship the item(s) back to us and we will refund your original purchase price and the original shipping charge. Buyers are responsible for the postal cost of returning the items. We must be notified of the intent to return your item within 30 days of receiving the item. Items returned must be in the same condition that they were received. How to return 1,Please ask us for return address . 2,Shipping back the package . The RMA#(Return Merchant Authorization Number = Your ebay ID) must be clearly written on the return package ,Otherwise the package will be refused. 3,Sent us the return tracking number. 4,All returns will be inspected prior to a credit being issued. Returns 1:Returns are accepted within 60 days of purchase. 2:All returned items MUST BE in the original packaging. 3:We will be happy to assist you if if any item needs to be returned or replaced 4:Please don't open a return request before contacting us first to solve, many thanks. Contact Us If you have any questions, our Customer Service staffs welcome you to sent me ebay message. We strive to answer all questions and resolve any problems as quickly as possible. 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