Posts that relate to the Keyword: objective
Cover glass thickness and resolution
The thickness of the cover glass can have a significant impact on the resolution. The effect is highest with high-numeric aperture aperture (high magnification) objectives, and barely noticeable when using objectives of a low numeric aperture. Types of cover glasses Cover glasses come in all sorts of different sizes. I already wrote a post about [...]
Q & A: What people searched for
In this post I’d like to address some of the search queries that people typed to find this web site. Naturally people typed many, many more search queries, most of the queries are made of 1 or 2 words. I selected the longer ones for this post. Q: What is the principal advantage of an [...]
Dirty microscope objective: Its effect on image quality
The microscopes in the school where I work have been in operation almost 30 years (!!) now. And the fact that most of them have remained usable says quite something about the quality of these devices. They are soon going to be collectively sent in for maintenance, and this is the last opportunity to do [...]
About the numbers on the Objective
This post explains the meaning of the different engravings on an objective.
Lens Errors
Modern microscope optics correct a range of different lens errors or aberrations. Here is a short description of some common lens errors.