Vaclav Vyhlidka

Vaclav Vyhlidka

Vaclav Vyhlidka
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So many times I have been asked for help with a query, where the questoin really comes down to the understanding of the difference between INNER and LEFT or RIGHT JOINs. I created this poster a few years ago and…Read more ›

So many times I have been asked for help with a query, where the questoin really comes down to the understanding of the difference between INNER and LEFT or RIGHT JOINs. I created this poster a few years ago and…Read more › Más

Exposure Lock (AE-L Button) is the abbreviation stands for Automatic Exposure Lock. It is useful using automatic and semi-automatic shooting modes.

Exposure Lock (AE-L Button) is the abbreviation stands for Automatic Exposure Lock. It is useful using automatic and semi-automatic shooting modes. Where has this information been all my photographing life?

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Flash Metering Systems TTL, A-TTL, E-TTL and E-TTL II Terms used in this article are Canon specific but there are the same or similar terms for Nikon, Sony, Olympus and other camera manufacturers. When you use your camera’s metering system, the meter will measure the reflected light from your subject (see: Metering Modes and How Your Camera …

Flash Metering Systems TTL, A-TTL, E-TTL and E-TTL II Terms used in this article are Canon specific but there are the same or similar terms for…

How to take better photos with an external flash - CNET

An external flash is a great tool, a valuable asset in a dSLR or advanced compact owner& camera bag. Here are five things you can do to get the most out of your external camera flash.

The Evolution of Apple #Infographic #Featured #Technology

Apple Inc. is the most famous brand in the world, but how has the company achieved global status since its inception in