Quick Overview
Standard Eyepiece. Eyepiece Optical Magnification: 20X. Eyepiece Size for Eye Tube: Dia. 30.5mm. Eyepiece Field of View: Dia. 10mm.
| Eyepiece Type | Standard Eyepiece |
| Eyepiece Optical Magnification | 20X |
| Plan Eyepiece | Plan Eyepiece |
| Eyepiece Size for Eye Tube | Dia. 30.5mm |
| Eyepiece Field of View | Dia. 10mm |
| Surface Treatment | Electroplating Black |
| Material | Metal |
| Color | Black |
Technical Info
| Eyepiece is also called ocular. Eyepiece is a visual optical device that is used to observe an image formed by an objective lens after magnification. Eyepiece can magnify the real image obtained by the magnification of the objective lens to form a clear and erect virtual image at the least distance of distinct vision (LDDV). For aberration, eyepiece is usually composed of several lenses that correct the residual aberrations produced during imaging by the objective lens. Usually, eyepiece has a relatively larger field of view and angular magnification. The eyepiece is provided with a diaphragm in the middle of the upper and lower lenses, or at the lower end of the lower lens, wherein micrometer, reticle, pointer and other accessories are mounted. On the eyepiece there is engraved with the following marks: eyepiece type, magnification, field of view number, and the like. For example, eyepiece is engraved with PL10X/22; PL represents plane eyepiece, or flat-field eyepiece, 10X is the magnification, 22 represents the field of view, and the glasses mark represents high eyepoint eyepiece, and C represents compensating eyepiece. Generally, the outer diameter of the eyepiece of a compound microscope is 23.2 mm, and stereo microscope can have a much larger field of view diameter because of its low magnification, so the outer diameter is mostly 30 mm (or 30.5 mm). The resolution capability of the microscope is determined by the numerical aperture of the objective lens, while the eyepiece plays only the magnification role. Therefore, for structures and details that cannot be distinguished by the objective lens, the eyepiece still cannot distinguish even if it is magnified again. |
| Eyepiece optical magnification is the visual magnification of the virtual image after initial imaging through the eyepiece. When the human eye observes through the eyepiece, the ratio of the tangent of the angle of view of the image and the tangent of the angle of view of the human eye when viewing or observing the object directly at the reference viewing distance is usually calculated according to 250 mm/focal length of eyepiece. The standard configuration of a general microscope is a 10X eyepiece. Usually, the magnification of the eyepiece of compound microscope is 5X, 8X, 10X, 12.5X, 16X, 20X. As stereo microscope has a low total magnification, its eyepiece magnification generally does not use 5X, but can achieve 25X, 30X and other much bigger magnification. |
| The eyepiece field of view is the diameter of the field diaphragm of the eyepiece, or the diameter of the image plane of the field diaphragm imaged by the field diaphragm. The diameter of a large field of view can increase the viewing range, and see more detail in the field of view. However, if the field of view is too large, the spherical aberration and distortion around the eyepiece will increase, and the stray light around the field of view will affect the imaging effect. |
| After unpacking, carefully inspect the various random accessories and parts in the package to avoid omissions. In order to save space and ensure safety of components, some components will be placed outside the inner packaging box, so be careful of their inspection. For special packaging, it is generally after opening the box, all packaging boxes, protective foam, plastic bags should be kept for a period of time. If there is a problem during the return period, you can return or exchange the original. After the return period (usually 10-30 days, according to the manufacturer’s Instruction of Terms of Service), these packaging boxes may be disposed of if there is no problem. |
| Packing | |
| Packaging Type | Carton Packaging |
| Packaging Material | Cardboard Box |
| Inner Packing Material | Plastic Bag |
| Ancillary Packaging Materials | Sponge |
| Gross Weight | 0.11kg (0.24lbs) |
| Minimum Packaging Quantity | 1 Pair |
| Transportation Carton | Carton Packaging |
| Transportation Carton Material | Corrugated Carton |
| Transportation Carton Dimensions(1) | 15.2x15.2x15.2cm (6x6x6″) |
| Total Gross Weight of Transportation(kilogram) | 0.25 |
| Total Gross Weight of Transportation(pound) | 0.54 |
| Quantity of One Transportation Carton | 1pc |
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We Offer World Wide Shipping (We are Based in California, USA)
Free Shipping within the Contiguous U.S.
We offer Free Economy Ground Shipping on all orders to U.S. contiguous locations placed on our website. When you select Free Shipping at checkout, we’ll ship your order with the most cost-effective shipping method. If you prefer a specific carrier, please select a paid shipping option instead of Free Shipping.
Note on Purchase Orders: Free shipping is only offered for orders placed online, and paid by Credit Card/Debit Card, or PayPal on our website. You may place your Purchase Order online, and enter your PO # in the Order Comments, and this PO# will show on your Packing Slip. Free shipping does not apply to Purchase Orders sent by email. If you are a company or university and emailing us a Purchase Order, the shipping fee will be added onto your invoice. Alternatively, you may provide a shipping account for us to ship the order under.
Free shipping does not apply to orders of any international and non-contiguous U.S. locations, such as Alaska, Hawaii, all off-shore U.S. territories and possessions, American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands.
Expedited Shipping
We offer expedited shipping via FedEx and UPS.
For all expedited shipping services, such as Overnight, Next Day, etc - While we will do our part to ensure the packages are received by the shipping carriers to meet the shipping cut off times, please note that once the package leaves our warehouse, we are no longer responsible for the delivery of the package. The shipping carrier is responsible for delivering your package.
Shipping On Your Shipping AccountWe can ship your order on your own shipping account, if you are ordering for a business or organization and have a shipping account with FedEx or UPS.
- At Checkout, under Shipping Methods, select Ship on my account.
- Under "Order Comments" section, enter your: Carrier, Shipping Service, Account #, Zipcode, Add Insurance or No Insurance.
- For example: "Ship on our account using UPS 2nd Day Air AM, Acct #: 12345, Zipcode: 90024, Add Insurance."
- *Shipping Carrier Insurance insures the package through your shipping carrier on your account. If insurance instructions are not specified, we will automatically fully insure the package through the carrier.
Shipping Costs
If you select services other than "Free Shipping" during checkout, your order will be shipped per your selected shipping method, and the shipping fee will be added to your order/invoice. Shipping costs are provided by the shipping carriers and calculated based on shipping location, product dimensions and weight.
BoliOptics products are warranted against manufacturer’s defects in material and workmanship from the original date of purchase, for the following years:
Lifetime Warranty
Designated products marked lifetime warranty.
5 Year Warranty
Microscopes (except video and digital microscopes) come with a five (5) year factory warranty against manufacturing defects.
5/1 Year Warranty
Products with 5/1 Year Warranty means that the hardware of the microscope is under 5 year warranty, and the electrical and lighting components are under 1 year warranty.
1 Year Warranty
Includes video microscopes, digital microscopes, electrical and electronic products such as light sources, cameras, software, monitors, and electronic components.
Microscope accessories (such as microscope cameras and illuminators) come with a one (1) year warranty, except when specified in the description.
Warranty does not apply for consumable accessories and parts such as bulbs, batteries, fuses, cords, optical components or any add-on accessories such as mechanical specimen holders that are not built into the microscope stage as an integral part of the original manufacture, etc.
Warranty does not cover ordinary wear and tear or damage caused by improper use or accidents (drops).
Warranty does not cover products that have become inoperable due to lack of maintenance.
Warranty is void when products are disassembled, structural parts were opened up, removed, unscrewed, tampered with, or broken during use or in the user's possession.
Warranty is void when product QR Codes or Barcode Stickers containing the Product's Serial Number are removed from the product.
Customers are responsible for round-way shipping for warranty services.
BoliOptics Return Policy
BoliOptics offers a thirty (30) day return window beginning on the date of your purchase on most items.
To receive a 100% refund, items must be returned in New and Original Condition, with all parts, accessories, and original product packaging included.
- Products missing the original packaging or instruction manuals are subject to a 20% restocking fee.
- Products missing parts or accessories are subject to a higher restocking fee.
- Products damaged during use (scratched, chipped, parts broken), disassembled from the original manufacturing or tampered with, are not accepted for returns or refunds. Our return policy does not cover ordinary wear and tear or damage caused by improper use or accidents.
- Microscope slides, coverslips, and eye guards are non-returnable.
- Items marked "Final Sale" are not eligible for return or refund due to change of mind. We are committed to ensuring the quality of all our products. If you receive a final sale item that has an issue, please contact us as soon as possible, and we will resolve any issue on a case by case basis.
When packaging the return, protect the item and original packaging.
- We recommend using the original packaging materials to ensure the product is safe during return shipping.
- If you do not have the original packaging materials, and there is extra room in the box, fill the extra space with padding (paper or shipping peanuts) so the product won't move around during transportation.
Customers are responsible for the return shipping label cost, if the product was not defective.
It can take up to 7 business days for an item to reach us once you ship it. Once we receive the item, it takes 5-7 business days to process the return and refund.
If you have any questions, please an email us at sales@bolioptics.com
Condition: New
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