If you are thinking of buying a telescope on ebay for astronomy purposes, there are many things you need to know before you can make an informed buying decision. I'm writing this short guide because there are...
What is the best combination of affordable lenses to use with my Canon EOS digital SLR camera? I have been asked this question many, many times. I will do my best try to share my experiences, research,...
The Canon EF 50mm f/2.5 “Compact Macro” is one of the most frequently used lenses in my camera kit. I have been finding that really close-focus photography is an artfully expressive way to capture truly...
Digital Photo Frames Comparison Points Screen Size As with monitors the screen size of a digital picture frame is measured in inches diagonally from corner to corner. It should be the size of the visible...
How to choose a telescope sensibly. If you can read and have a modicum of common sense, read on!Binoculars e.g. 7 x 50 or 10x50 are great for ‘browsing’ or finding brighter objects. They will also help in...
Sooner or later, if you're interested in astronomy, you'll decide you want a telescope. There are so many different types out there that it is bewildering to know where to start to choose what you want. There...
Optical Zoom and Digital Zoom When looking at digital cameras you will hear about optical and digital zoom. Cameras ads will say something like "4x optical and 3x digital for a total 12x zoom!"Optical zoom is...
This Format Ratio Guide will help Ebayers to understand easly TV DVD format issues.The motion picture industry convention assigns a value of 1.0 to the image’s height, thus, an anamorphic frame is described...
Focal Length and Zoom It depends on you wanted to capture the whole image or focus in on the tiny details.The Focal Length of the lens (measured in millimeters) and the Zoom Ratio determine how much or how...
P1934 - Serial digital bus connector for interconnecting domestic units, sometimes known of as firewire and ultimately likely to replace the function of the SCART socket in analogue. The proper name for P1394...