Old Vintage Cameras: Dynax 404si SLR

Tuesday, June 26, 2012

Dynax 404si SLR

Minolta Dynax 404si SLR 35mm Film Camera

Minolta Dynax 404si SLR 35mm Film Camera Maxxum St si with Promaster 28-105mm Lens - The Minolta Dynax 404si is a basic SLR that provides extensive features desired by beginners and advanced amateurs. It offers a simplified full-auto operation, using the clear-cut control layout and body from the Dynax 505si, ’98 -’99 EISA 1 and TIPA 2 award winner. Along with the Dynax 505si, the Dynax 404si boasts the world’s most compact body*. With its simplified operation and advanced functions, the Dynax 404si is a versatile SLR with excellent cost performance.

In Full-auto mode, the Dynax 404si does everything except compose the picture. Autofocus and autoexposure are activated, and flash pops-up and fires when necessary. The Dynax 404si’s full-auto operation allows photographers to concentrate on the image in the viewfinder.

The camera uses the simple operation concept and common sense layout developed for the Dynax 505si, satisfying both beginners and advanced photographers. Controls for basic functions such as the program-reset button and subject-program button are created away from the function dial, which incorporates the more advanced functions. The Dynax 404si’s ergonomic design instills confidence and presents opportunities to stretch creativity.

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What is a Camera Obscura?

The camera obscura (Latin; camera = vaulted chamber | obscura = dark, thus darkened chamber or 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 color 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 History 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.