The Word Association Thread

[Bizarra]

Optician?

[jw67]

Boots

[Bizarra]

Walkin

[KPARRIS-JONES]

Jogging

[Raistlin]

Obscura

This article is about a photographic device. For other uses, see Camera obscura (disambiguation).

Camera obscura box.jpg

The camera obscura (Latin; "camera" is a "vaulted chamber/room" + "obscura" means "dark"= "darkened chamber/room") is an optical device that projects an image of its surroundings on a screen. It is used in drawing and for entertainment, and was one of the inventions that led to photography. The device consists of a box or room with a hole in one side. Light from an external scene passes through the hole and strikes a surface inside where it is reproduced, upside-down, but with colour and perspective preserved. The image can be projected onto paper, and can then be traced to produce a highly accurate representation.

Using mirrors, as in the 18th century overhead version (illustrated in the Discovery and Origins section below), it is possible to project a right-side-up image. Another more portable type is a box with an angled mirror projecting onto tracing paper placed on the glass top, the image being upright as viewed from the back.

As a pinhole is made smaller, the image gets sharper, but the projected image becomes dimmer. With too small a pinhole the sharpness again becomes worse due to diffraction. Some practical camera obscuras use a lens rather than a pinhole because it allows a larger aperture, giving a usable brightness while maintaining focus. (See pinhole camera for construction information

Are you trying to make an obscura point

[Bizarra]

Obscura

This article is about a photographic device. For other uses, see Camera obscura (disambiguation).

Camera obscura box.jpg

The camera obscura (Latin; "camera" is a "vaulted chamber/room" + "obscura" means "dark"= "darkened chamber/room") is an optical device that projects an image of its surroundings on a screen. It is used in drawing and for entertainment, and was one of the inventions that led to photography. The device consists of a box or room with a hole in one side. Light from an external scene passes through the hole and strikes a surface inside where it is reproduced, upside-down, but with colour and perspective preserved. The image can be projected onto paper, and can then be traced to produce a highly accurate representation.

Using mirrors, as in the 18th century overhead version (illustrated in the Discovery and Origins section below), it is possible to project a right-side-up image. Another more portable type is a box with an angled mirror projecting onto tracing paper placed on the glass top, the image being upright as viewed from the back.

As a pinhole is made smaller, the image gets sharper, but the projected image becomes dimmer. With too small a pinhole the sharpness again becomes worse due to diffraction. Some practical camera obscuras use a lens rather than a pinhole because it allows a larger aperture, giving a usable brightness while maintaining focus. (See pinhole camera for construction information

Are you trying to make an obscura point

"Trying" being the operative word Too late by a couple of hours with the edit

[KPARRIS-JONES]

WORD!?!

C'mon fogies, try and keep it on some sort of track! :P

[Bizarra]

Microsoft...................enough cheek form you, Whippersnapper :shutit: We are erudite & discuss obscure points

[KPARRIS-JONES]

Microsoft:

Rubbish/Slow/Crap

You choose, they all apply. ;)

[jw67]

Aygo :lol2:

[Bizarra]

Crap

[jw67]

Toilet

[Bizarra]

Urinal

[jw67]

Gentlemen

[Raistlin]

Ladies

[jw67]

Sexy

[Raistlin]

Body

[KPARRIS-JONES]

Matter

[jw67]

Mass

[Raistlin]

Murder

[Bizarra]

Most

[Raistlin]

Horrid

[jw67]

awful

[Raistlin]

Disgusting

[Bizarra]

Distasteful