DeltaOptical microscope cover slips 20x20mm - pack of 100
Anyone who works with a microscope - whether as a hobby, at school or in a laboratory - knows that the quality of the final image depends not only on the microscope itself, but also on small but essential accessories such as cover slips. DeltaOptical cover slips in the 20x20mm format are a reliable choice for everyday work with prepared specimens, thanks to their precisely optimized thickness and the practical pack size of 100 pieces.
What are microscope cover slips used for?
Cover slips for biological microscopes are placed over a specimen applied to a microscope slide. This protects the sample from drying out, contamination and mechanical damage, while also ensuring a uniform thickness of the specimen layer. The 20x20mm format is one of the most widely used standard sizes - it easily covers the majority of common specimens and is compatible with objectives of biological microscopes designed for use in transmitted light.
The thickness of the glass is deliberately optimized so that the correction optics of standard microscope objectives - typically corrected for a cover slip thickness of 0.17mm, i.e. class no. 1.5 - deliver a sharp and high-contrast image without unnecessary aberrations.
Why the right cover slip thickness matters
Many beginners underestimate the influence of a cover slip on the final image. In reality, a poor-quality or excessively thick cover glass can cause spherical and chromatic aberrations, especially when using higher magnifications and dry objectives with a large numerical aperture. The correct cover slip thickness is therefore a key parameter for achieving maximum resolution and contrast. DeltaOptical cover slips are manufactured with these requirements in mind, ensuring consistent and high-quality results when used with standard laboratory and school microscopes.
Pack of 100 - always ready when you need it
The set contains 100 cover slips, which is particularly appreciated by those who prepare specimens regularly or in larger quantities - during school lessons, biology clubs, home laboratory work or professional use. With this practical pack size, you always have a sufficient supply on hand and never have to worry about running out of material in the middle of your work.
Product specifications
| Parameter |
Value |
| Brand |
DeltaOptical |
| Dimensions |
20x20mm |
| Thickness class |
No. 1.5 (approx. 0.17mm) |
| Pack contents |
100 pieces |
| Application |
Biological microscopy, transmitted light |
| Suitable for |
School, home laboratory, professional use |
About DeltaOptical
DeltaOptical is an established brand focused on optical instruments and microscopy accessories, combining affordability with an emphasis on functional quality. DeltaOptical products are popular among amateur enthusiasts as well as in school and scientific environments - and cover slips are no exception. If you are looking for reliable consumable microscopy accessories that will not let you down even during more demanding observations, DeltaOptical is a brand you can trust.
