Remember the simple equation that defines the exposure? The equation was introduced in the post “How Much Light Is Needed Inside the Camera?” and shows that the exposure (i.e. luminous energy) represents the product between illumination (modulated by the aperture) … Continue reading
About two weeks ago I’ve been asked “I’ve seen some photos when there is blurred like a strip above and below and the middle strip is sharp – any idea how that happens?” The question came when I posted the … Continue reading
As a direct consequence of the sensor geometry, for a given resolution, the pixel density is higher for the smallest sensor (and the size of the pixel itself is smaller). The pixel density is important because this will influence the … Continue reading
A photography tutorial about sensors would be incomplete without a discussion about sensitivity, noise, resolution and the interconnection between them. Without question the marketers and especially the sales people will emphasize the resolution as the most important parameter of the … Continue reading
In this photography tutorial we will try to answer the question “What is really a photo sensor?” but without all the technicalities that such a subject would require. I will begin by saying that the photo sensor has the same … Continue reading
This is probably one of the least understood and ignored aspects of using different focal lengths by beginners. They see “zooming” mainly as a way to get closer to or move away from the subject. Which is correct but it … Continue reading
Despite the fact that the angle of view and the focal length are two terms often used in camera reviews, it seems that the general public is less aware of the close relationship between the two. No wonder why when … Continue reading
One of the most important components of a digital camera is, obviously, the lens. Its qualities and features are paramount when it comes to camera’s ability to capture the images accurately while offering the photographer a wide range of creative … Continue reading
When I started my posts discussing the camera basics I was tempted to describe the optical phenomena, write some equations and derive from them all the consequences that a photographer should know. It is the Engineer inside of me that … Continue reading
Yesterday I spent few hours in a regional park closed to my home. This park has been my photography playground for a while: it has everything from the beautiful views over the Fraser Valley to the people that come here … Continue reading