Camera Buying Tips Part II

LCD Viewfinder
One of the most important basic design features to consider is the camera's viewfinder. The LCD screen can see what your picture will look like before you take it. Consider LCD quality and the construction of its screen, whether it is fixed or positioned on a rotating mount.


Flash
Most digital cameras have a built-in flash. This triggers automatically in low light conditions when set to auto mode. Some cameras include additional features, such as red-eye reduction or night portrait mode.


Self-timer
The obvious reason for using a digital camera's self-timer is so the photographer can be in a photo. A self-timer sets your digital camera for a delayed exposure, usually giving you about 10 seconds before it takes the picture. Some models have a custom self-timer, which lets you set the countdown time.


Audio recording, Movie mode, TV connections, and Computer connections
Look for these features also.


Size
There are three basic sizes of digital cameras. Know what’s the size of your camera that suits your needs. Compact digital cameras are designed to provide a moderate feature set, stylish looks, and a tiny, pocket size. Standard digital cameras are similar to 35mm point-and-shoot models in appearance and features. If you care more about robust features like interchangeable lenses, flashes, and other accessories, you will most likely have to consider a larger-sized camera or professional camera.


Formats: Common formats are the Joint Photography Experts Group standard (JPEG) and Tagged Image File Format (TIFF).


Digital Camera Brand:
It is a matter of personal preference.


Price range
Prices are based primarily on resolution and features. The newest consumer electronics products are always priced at a premium. The best bargains are usually found on last season's models.

Camera Buying Tips Part I

What should I look for when I want to buy a digital camera?
Digital cameras capture and store photographs electronically instead of using photographic film. It records images on memory cards, no developing cost, you can print only what you like, it has LCD viewer and the like. Modern digital cameras are multifunctional, capable of recording sound and/ or video.

In buying, identify what you need. Is it for professional graphics work? Will you want a zoom lens? What is your budget? How much you want to spend? Also knowing what kind of photos you will be taking will help you decide. Before you decide what camera to buy consider the following:

Resolution: This describes the detail an image holds. Higher resolution means more image detail. Decide the resolution on what you plan to do with your photos.

Batteries:
The AA batteries are common, however non- rechargeable alkaline batteries are capable of providing enough power for only a very short time. CR2 batteries are lithium based and intended for single use. Most consumers use AA nickel metal hydride batteries (NiMH), which provide an adequate amount of power and are rechargeable. Proprietary batteries are built to a manufacturer’s custom specifications. They are almost lithium ion, which accepts only a certain number of recharges before the battery life begins degrading.


Memory/ Storage:
Memory is where pictures are stored as you take them. It determines how many images you can store. If you plan taking many pictures without having access to your computer for downloading, you should plan to buy an extra memory card such as compact flash cards, memory stick, SD/ MMC, mini SD, XD picture card and others, which is determined by your camera.


Lens:
The lens may zoom from moderate wide-angle, through normal, to moderate telephoto; or from normal to extreme telephoto. Consider the lens in order to take a good photo, may it be near or far from you.

Samsung’s Transparent Laptop

Samsung’s transparent laptop is one of the gadgets astounded the public of the CES. The laptop has AMOLED screen. This laptop is being celebrated as it is the first and largest transparent OLED prototype. It is a 14-inch laptop and it is up to 40 percent transparent.

RF Simulation Time

I have been simulating the IP3 response of the buffer circuit I am designing lately. I noticed that it is very long to simulate the IP3 using the transient and DFT method. Here I list the time to simulate:



Using the QPSS method is far faster than using transient and DFT method. I can save about 13 minutes. Utilizing the QPSS means I am using an RF license though.