Noun:

ফোকাল অনুপাত,

focal ratio শব্দের বাংলা অর্থ এর উদাহরণ:

 কখনো কখনও একে ফোকাল অনুপাত, এফ-স্টপ কিংবা এপারচার বলে উল্লেখ করা হয় ।

focal ratio's Usage Examples:

It is also known as the focal ratio, f-ratio, or f-stop, and is very important in photography.

the angle off axis to the image in radians and F is the focal ratio.

Newtonians with a focal ratio of f/6 or lower (f/5 for example) are considered to have.

a focal ratio of around f/2 and a secondary with a focal ratio also around f/2, the separation of the two mirrors determining a typical system focal ratio.

A 2× teleconverter reduces the light to 1/4, doubles the focal ratio and halves the resolution of the master lens it is connected to, this.

is the system will have a high focal ratio, with a correspondingly dim image, and some vignetting.

A high focal ratio also means the field of view will.

the f-number is commonly referred to as the focal ratio notated as N {\displaystyle N} .

The focal ratio of a telescope is defined as the focal length.

3, decreasing the focal ratio of the lens.

A higher focal ratio is thought to compensate for the relatively high Matthiessen's.

The focal ratio (f-number, the ratio of the focal length to the dish diameter) of typical.

UH88 is a Cassegrain reflector tube telescope with an f/10 focal ratio, supported by a large open fork equatorial mount.

aperture of 50 mm and a relatively long focal length of 500 mm, for a focal ratio of f/10.

\lambda } is the wavelength expressed in millimeters and F# is the lens' focal ratio.

1 m diameter and about f/1 focal ratio.

can change the effective focal length 1 to 3 times without increasing focal ratio.

telescopes offer images with less coma than Newtonian telescopes of the same focal ratio (usually about half).

systems: Primary focus Focal length of the primary focus is 9360 mm with a focal ratio of F/4.

focal ratio (focal length divided by diameter) of f/0.

For an individual segment – being one third that diameter – this results in a focal ratio of.

This type of Maksutov-Cassegrain's high focal ratio and narrower field of view makes them more suitable for lunar and planetary.

Synonyms:

f number; stop number; speed; ratio;

Antonyms:

stay in place; linger; slow; fast; acceleration;