(2)Set a magnification at least 3 or 4 times higher than that will used for photographing.

(3)Obtain the thinnest over-focus (Fresnel) fringe that can be clearly seen in the binocular, with beam spread. Caution: make sure you focus the binocular on the viewing screen.

(4)Adjust the OJB STIG X and Y (MULTIFUNCTION keys) until the fringe follows the outline of the hole uniformly and symmetrically.

(5)Use finest focus step, go through focus series to check astigmatism correction.

Second Method (for specimens with few small holes or any specimen)

(1)Using any specimen, adjust (at the best focus) objective stigmators until image is as crisp (sharp) as possible.

(2)Go through focus series to check astigmatism correction.

Third Method (for ultra-high resolution images, >150kx )

(1)Find the amorphous area such as amorphous carbon film or any amorphous contaminants around the specimen or any amorphous material.

(2)If there is an appearance of smearing or some thing that looks like periodic structure exists in the amorphous film, this is an indication of an astigmated objective lens. Correct this by observing the amorphous image as the objective lens focus is changed.

(3)Correct astigmatism with the OBJ STIG X and Y (MULTIFUNCTION) controls. There should be random grains in the structure/image of the carbon or amorphous film.

(4)Go through finest focus series to check astigmatism correction. It should have no more “directional” on the image when changing focus.

Note: Be very careful about correcting the objective astigmatism. If it looks pretty good, you may want to leave it rather than risk making it worse if you were not sure to make a better correction. The objective astigmatism is most critical at high magnification imaging.

Final Comments

You are now ready to examine your specimen. During the examination/observation, minor features of alignment such as eucentricity and astigmatism should be checked and corrected from time to time. Take notes as detail and as much as possible while examining specimen and taking photographs.

Happy Hunting and Enjoying the Small World!

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Philips CM-20 manual Final Comments
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CM-20 specifications

The Philips CM-20 is a dynamic and innovative multimedia speaker system that enhances the audio experience for users yearning for rich sound quality and versatile functionality. Designed with modern aesthetics and cutting-edge technology, the CM-20 is ideal for home entertainment setups, providing user-friendly features that cater to audio enthusiasts and casual listeners alike.

One of the standout features of the Philips CM-20 is its powerful audio output, delivering deep bass and crisp highs. Its advanced speaker design includes well-engineered drivers that ensure a balanced sound profile, making it suitable for various audio genres, from classical to contemporary. The system is equipped with a built-in amplifier, which optimizes performance and ensures minimal distortion even at higher volumes.

Connectivity is a key aspect of the CM-20. It boasts multiple input options, including Bluetooth, USB, and RCA. This allows users to easily connect a variety of devices, such as smartphones, tablets, and computers, enabling seamless streaming of music. The Bluetooth capability is particularly noteworthy, as it permits users to enjoy wireless audio playback without the hassle of tangled cords.

The user-friendly interface of the Philips CM-20 is another highlight. It features intuitive controls that make it easy to adjust volume, bass, and treble settings, allowing users to customize their audio experience to their personal preferences. Additionally, the speaker system includes a remote control for added convenience, enabling users to manage playback from a distance.

In terms of build quality, the CM-20 combines durability with sleek design. Its compact size makes it easy to integrate into any living space, while the aesthetically pleasing finish enhances the overall décor. The system is built to last, providing a robust solution for long-term use.

Another key characteristic of the Philips CM-20 is its energy efficiency. The speaker system is designed to minimize power consumption without compromising performance, making it an eco-friendly choice for audio lovers.

In summary, the Philips CM-20 stands out with its powerful audio capabilities, versatile connectivity options, user-friendly controls, and appealing design. It represents a great addition to any home audio setup, providing an enjoyable listening experience suitable for any occasion. Whether for casual use or dedicated listening sessions, the CM-20 is engineered to impress.
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