Showing posts with label LCD. Show all posts
Showing posts with label LCD. Show all posts

Tuesday, December 21, 2010

Digital Camera Basics

If you are purchasing a camera for 4 x 6 snapshots a 3-4 Megapixel is fine, but you will find as you shop for this holiday season – December 2019 – that most cameras today come with 12 Megapixels or more, so that isn’t a problem. If you like a particular brand of camera, go with it. Some features to look for are:

Battery Type
Depending on your preference you may want regular AAA batteries because they are everywhere and easy to replace or a proprietary rechargeable battery that comes with your camera. It’s really just a matter of choice.

LCD size
Generally, the larger the LCD, the better. The larger your view, the better idea you have whether the picture is good, or if you should take another.

View Finder
Most new cameras don’t have an eyepiece to view your subject, you use the viewfinder instead. If an eyepiece viewer is important to you, make sure the camera you purchase has one. Only in very bright sun is the eyepiece viewer important.

Zoom
For me, Optical Zoom, is the most important feature. When you frame a picture, you usually want a part of the scene- maybe just the face or faces – maybe the whole body and the interactions between people- maybe the people as they relate to the vast scenery. The larger your zoom, the better chance you have of capturing what you’d like to see in a picture. The average zoom sold today is 4X. So ask about Optical Zoom (not Digital Zoom)

Image Stabilization
This helps make your picture more sharp and less fuzzy. Image stabilization is more important the longer your zoom and has become a standard feature in most cameras today .

Our next post will discuss memory and memory cards...

Thursday, December 9, 2010

HOW TO KEEP YOUR MONITOR AND KEYBOARD CLEAN?

First-turn the computer off before cleaning the monitor or keyboard…

Monitor ~ The new LCD flat screen monitors/TV should be cleaned with a micro-fiber cloth and water or solution designed for them-Most manufacturers recommend never using products that contain ANY alcohol, ammonia, or other strong solvents on LCD & Plasma screens.

Keyboard ~ First, turn the keyboard upside down and tap it gently to release any crumbs, dust, pet hair; Then versus paying for a can of compressed air, I use the cool setting on a hair dryer after I’ve tapped the keyboard ~ Be careful what you use to wipe it down. Electronic items usually come coated with a very fine film of glossy finish and this material can be damaged by harsh cleaners, especially ones that contain ammonia compounds or alcohol

Mouse & Phones ~ Especially this time of year (winter) I use alcohol wipes on my mouse and all phones at the office, at home and my cell phone; especially if and when the grandkids are around….

Wednesday, October 6, 2010

LCD Monitors - a few tips

Most Monitors/computer screens today are LCD, but what does that mean?
LCD means Liquid Crystal Display, mostly used in flat screen monitors and laptop screens.

Why should I worry about cleaning my LCD screen?
One of the most expensive components of a computer system or laptop is the LCD monitor or screen. LCD screens are easily susceptible to damage and scratches, so it's a good idea to make sure you clean it correctly.

Can I use any type of cleaning solution on my LCD screen?

NO! using alcohol or ammonia based cleaners repeatedly may cause permanent damage to the LCD. Over time using these types of cleaners could cause the surface of the screen to yellow. It can also make the screen brittle and eventually cause cracking on the screen surface. The following cleaners are unacceptable:

  • Acetone
  • Ethyl alcohol
  • Ethyl acid
  • Ammonia
  • Methyl chloride

What types of cleaners are acceptable?

  • Water
  • Vinegar (mixed with water)
  • Isopropyl Alcohol
  • Petroleum Benzene


What are some of the basic supplies needed to clean an LCD screen?

  • A soft cotton cloth. When cleaning the LCD screen it is important to use a soft cotton cloth, rather than an old rag. Some materials, such as paper towels, could cause scratches and damage the LCD screen.
  • Solution of water and isopropyl alcohol. This solution can be used along with the soft cotton cloth.
  • Computer wipes ONLY if they specifically state on the package they are designed for LCD screens. Computer wipes can come in handy for fast clean-ups or when you want to avoid mixing up a cleaning solution yourself.

How do I clean the LCD surface properly?

  • Do not spray any liquids on the LCD screen directly, and do not use paper towels, this can cause the LCD screen to become scratched.
  • Always apply the solution to your cloth first, not directly to the parts you are cleaning. You want to avoid dripping the solution directly into your computer or laptop.
  • Stroke the cloth across the display in one direction, moving from the top of the display to the bottom.