Pro Photo Wiki Select Articles

Thomas Sapiano

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Introduction

Since IP Addresses are used across multiple networks, the address is actually segmented and each portion used for a different function. The subnet mask is used to determine how the address is aranged, so that devices know how to make use of it correctly. As such, it is a critical...

Thomas Sapiano

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Introduction

Unlike the simpler colourimeter, spectrophotometers use a diffraction grating to break light down into its component wavelengths. A set of sensors then measures those spectral components directly and can provide an extremely accurate reading. As spectrophotometers are measuring colour...

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Introduction

SilverFast HDR software offers full 16 bit RAW support for digital cameras as well as 16 bit TIFF and JPEG files. The user first has access to a virtual light table where images can be selected from any chosen directory. Files can then be viewed, sorted, edited and printed in a fully...

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Introduction

Much smaller than the older Compactflash standard, Secure Digital cards can be integrated into more compact devices. Dispite this small size, these cards can provide similar performance to many larger formats. As such, Secure Digital has all but suplanted CF cards in the compact...

Thomas Sapiano

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Introduction

Symetrical Multi-Threading is a technique where a single processing core exposes itself as two (or more) logical processors to the OS. This can allow a microprocessor to make use of processing resources that would otherwise remain idle. Unfortunately, this technique does not improve...

Thomas Sapiano

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Introduction

http://www.prophotowiki.com/w/images/Router.png Routers help to interconnect several networks together.


Routers are networking devices used to tie two or more networks together. Devices that need to transmit information to outside networks pass that data to a router, which in turn...

Thomas Sapiano

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Introduction

One of a number of different RAID levels that combines three or more hard drives in order to add redundancy and increase the bandwidth provided to the system. In these arrays, blocks of data (commonly called 'stripes') are alternated between all but one of the drives in the array....

Thomas Sapiano

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Introduction

A form of Nested RAID array, RAID 10 combines RAID 1 and RAID 0 in order to take advantage of the benefits of both. A RAID 10 array is basically a RAID 0 array where each of the component 'discs' are actually RAID 1 arrays. Since all of the striped data is mirrored across two (or...

Thomas Sapiano

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Introduction

One of a number of different RAID levels that combines two or more hard drives in order to increase the bandwidth provided to the system. In these arrays, blocks of data (commonly called 'stripes') are alternated between each drive in the array. Since all of the drives can opperate in...

Thomas Sapiano

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Introduction

ProPhoto Wiki contains a number of resources on all forms of wireless networks and their use in digital photography. This section covers everything from short range wireless networking topics like WiFi to wide area wireless services like EVDO. Please read on for more information!...

Thomas Sapiano

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<H2>Introduction</H2>A critical component of any photographic equipment are the optics used to generate the image. The following articles detail both the underlying principles and the various optical devices used by photographers.
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<H2>Lens Characteristics</H2>
Focal Length - The optical...

Thomas Sapiano

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Introduction

Central to any photographic workflow is the representation of colour. While this may seem like a simple concept, managing colour in a digital environment is an extremely complicated task and understanding how it works can be a significant asset. The following sections and articles...

Thomas Sapiano

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Introduction

Modern professional digital cameras come with a wide variety of accessories that provide capabilities beyond what the basic models can provide. As many of these devices play an important role in photographic workflow, the following sections detail some of the more common device...

Thomas Sapiano

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Introduction

This spectrum was originally allocated as part of the National Information Infrastructure (NII) in the US. When the IEEE began pushing the 802.11a standard around the world, many other countries allocated blocks of this spectrum for unlicenced use. As such, the available frequencies...

Thomas Sapiano

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Introduction

Many modern image sensors make use of tiny microlenses mounted above each and every pixel. By focusing light into areas of the imager that are actually sensitive to light, these microlenses can dramatically increase the performance of the camera. In addition to the direct benefits,...

Thomas Sapiano

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Introduction

MAC Filtration is a basic security feature that allows networking equipment to maintain a list of network adapters that are (or are not) allowed access to the network. As MAC Addresses are unique to each physical network card, these lists allow a network to restrict access to a...

Thomas Sapiano

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Introduction

The 2.4GHz ISM band is one of three regions of the spectrum originally allocated for non-commercial industrial, scientific and medical (ISM) purposes. As these bands weren't widely utilized for those purposes, many governments have reassigned them for use with unlicenced radio...

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Introduction

Ratified in 1999, 802.11b was the first standard in the family to become popularized. By using the same underlying techniques as the original 802.11 standard, it allowed mature products to reach the market very quickly after ratification. The significant increase in speed and more...

Thomas Sapiano

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What is the IEEE

The IEEE (Institute of Electrical and Electronics Engineers) is a professional association that performs many different functions including acting as a standards organization. The IEEE-SA oversees a number of standards important to the digital imaging industry including Firewire...

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Introduction

Hubs are devices used by networks to connect wired devices to a single network. Unlike switches, hubs are relatively simple devices that take any data received and repeat it on all of their ports. This makes for a much simpler device, however it also means that the available bandwidth...