All photography was originally monochrome, most of these photographs were black-and-white. Even after color film was readily available, black-and-white photography continued to dominate for decades, due to its lower cost and its “classic” photographic look. It is important to note that some monochromatic pictures are not always pure blacks and whites, but also contain other hues depending on the process. The Cyanotype process produces an image of blue and white for example. The albumen process which was used more then 150 years ago had brown tones.
Many photographers continue to produce some monochrome images. Some full color digital images are processed using a variety of techniques to create black and whites, and some cameras have even been produced to exclusively shoot monochrome.

Duration of exposure – equivalent to shutter speed
Printing aperture – equivalent to aperture, but has no effect on depth of field
Contrast
Dodging – reduces exposure of certain print areas, resulting in lighter areas
Burning – increases exposure of certain areas, resulting in darker areas
Paper texture – glossy, matte, etc
Paper type – resin-coated (RC) or fiber-based (FB)
Paper size
Toners – used to add warm to cool tones to black and white

Camera controls are inter-related. The total amount of light reaching the film plane (the “exposure”) changes with the duration of exposure, aperture of the lens, and, the effective focal length of the lens (which in variable focal length lenses, can change as the lens is zoomed). Changing any of these controls can alter the exposure. Many cameras may be set to adjust most or all of these controls automatically. This automatic functionality is useful for occasional photographers in many situations.

The duration of an exposure is referred to as shutter speed, often even in cameras that don’t have a physical shutter, and is typically measured in fractions of a second. Aperture is expressed by an f-number or f-stop (derived from focal ratio), which is proportional to the ratio of the focal length to the diameter of the aperture. If the f-number is decreased by a factor of , the aperture diameter is increased by the same factor, and its area is increased by a factor of 2. The f-stops that might be found on a typical lens include 2.8, 4, 5.6, 8, 11, 16, 22, 32, where going up “one stop” (using lower f-stop numbers) doubles the amount of light reaching the film, and stopping down one stop halves the amount of light.

We can keep track of the scenarios in our life through photos. They exemplify the past at best. It takes us to those days that are portrayed in the photos. It will be even more memorable if it is a digital photo with a crystal clear view. Another important requirement is selecting the way of display of these photos. Digital picture frames are designed to expose these digital pictures at best. Aluratek frames are the preeminent option which has many additional features inculcated to its digital photo frame unit. These frames are available in various sizes starting from 7 to 15 inch TFT LCD screen. The most enthralling feature is its ability to see the still pictures as a slideshow. We can also enjoy music at the same time as it has also been provided with built-in high quality speakers. Storage of files is also possible that is supported by the 256mb inbuilt memory. It supports all video and audio file formats and file transfer is also made possible.

Scientists proudly divulged the first digital map of the earth’s geology. This is indeed a breakthrough as it could guide oil and gas exploration and mining or locate sites for burying greenhouse gases. The map exemplifies the world stripped of vegetarian, water, soil and human structures by combining the available data from the geological centers on the internet. The mapping project done so far covers about 70% of the globe as all the countries have provided their data for free of cost.

Hi friends,If you are a nokia phone users with series 60 platforms.Then this post will be very useful for your mobile.At a time of buying your s-60 mobiles,Speed will be very fast.But later your mobile speed becomes low.The reason for this problem is,you are using the operating system based mobiles.If your mobiles speed get down then follow this instruction for your s-60 mobiles.I given the example for N6600 mobiles.These steps are suitable for all s-60 mobiles.

First go to ur To-do List (default app of ur N6600)

-Make a note and input as follows
Subject: Speed
Due Date: 01-23-2008(mm-dd-yy)
Priority: set to High
then press Done

-Make a second Note and input as follows
Subject: Qoukie
Due Date: 01-23-2008(mm-dd-yy)
Priority: set to Low
then press Done

- Do not exit yet, Press the Option of your Subject note w/c is Speed and Mark as done
- then Press the Option of your Subject note w/c is Qoukie and Mark as done
- Now, reboot ur mobile.

Aperture of the lens – adjustment of the iris, measured as f-number, which controls the amount of light passing through the lens. Aperture also has an effect on focus and depth of field, namely, the smaller the opening [aperture], the less light but the greater the depth of field–that is, the greater the range within which objects appear to be sharply focused.
Shutter speed – adjustment of the speed (often expressed either as fractions of seconds or as an angle, with mechanical shutters) of the shutter to control the amount of time during which the imaging medium is exposed to light for each exposure. Shutter speed may be used to control the amount of light striking the image plane; ‘faster’ shutter speeds (that is, those of shorter duration) decrease both the amount of light and the amount of image blurring from subject motion or camera motion.

Here i giving the tips to increase your Download speed of your Torrent Downloads.This ideas will be work in Bit torrent,Bit commet.etc and all your torrent software.This post is mainly used for the peoples who are having the High speed Broadband but their torrent speed is very low.Here i gonna to give some important technique is called “Port Forwarding”, or “opening your specific TCP ports”.The green or blue cable coming from either your computer/modem/router contains 65536 electric lanes.Each lane is called port and contains the specific address as

• HTML pages: port 80
• FTP file transferring: port 21
• World of Warcraft: port 3724
• POP3 email: port 110
• MSN Messenger: port 6901 and ports 6891-6900
• Everquest: port 1024
• Bit Torrents: port 6881

Then the next tip is,The torrent downloader by default took the Port no 6881 for entry or exit to your computer.If it is closed means then it search from 6882 ,6883 and finally tries 6999.
Then thje next tip is always swich of your firewalls and other prevented sources.But the drawback of doing this may be the advantage for the hackers and they can easily enter your system and there is the lot of possibility of hacking your system.Please Be Alert to making these process and tips.Then Downloads the torrent with your full Broad band speeds.