AtoZ Challenge: I – Infinity Focus

Infinity Focus Often we hear the term “Infinity Focus” being used while shooting landscapes or during astro photography. What it actually means is, the focus plane to be such that maximum light rays which focus on the sensor shall be in parallel plane. While shooting landscape photos, we focus at a plane, where the infinity of the lens is within the hyperfocal distance; but while … Continue reading AtoZ Challenge: I – Infinity Focus

AtoZ Challenge: H – Hot Shoe

Hot Shoe It is a mounting arrangement found on the top of the camera bodies for mounting external flashes, commander modules, GPS modules etc. The hot shoe is generally found in a standard form and the various compatibility issues arise due to the different firing voltages which trigger them. One may not find daily use of the hot shoe but it sure is an indispensable … Continue reading AtoZ Challenge: H – Hot Shoe

AtoZ Challenge: G – Ghosting

Ghosting Ghosting is a phenomenon that is observed if there is strong light directly incident on the lens and it reflects off the various lens elements, the diaphragms and even the sensor, and causes multiple translucent artefacts to be created. This often causes the photo quality to degrade. One of the ways past this is to use a lens hood, or to use polarizer filters. … Continue reading AtoZ Challenge: G – Ghosting

AtoZ Challenge: F – Forced Perspective

Forced Perspective Take a good long look at the picture below. Often we see photos of people holding the tip of Eiffel Tower or leaning against the Leaning Tower of Pisa or even gobbling up the sun. That is what forced perspective is all about. We use the camera settings in such a way that the difference between the foreground and the background is intentionally … Continue reading AtoZ Challenge: F – Forced Perspective

AtoZ Challenge: E – EXIF Data

EXIF Data It is a condensed form of Exchange Image File format which is basically a standard format set to report the various parameters of a photograph. The data that are captured mostly include the make of the camera, shutter speed, focal length, the aperture, ISO. When suitably available, location coordinates are also available in the EXIF data. Extra information as to whether the flash … Continue reading AtoZ Challenge: E – EXIF Data

AtoZ Challenge: D – Double Exposure

Double Exposure The origin of this interesting bit of art probably occured when someone, while shooting film, forgot to forward the roll to the next empty slot. As they shot, the already exposed negative got re-exposed and the photos superimposed creating something interesting and Voila! double exposure is born. Now a days, we dont need to fiddle with the films, maybe just a bit in … Continue reading AtoZ Challenge: D – Double Exposure

AtoZ Challenge: C – Colour Temperature

Colour Temperature Hot objects emit radiation. If the radiation were visible, say visible light, what would be the temperature of the body emitting the radiation? For example, for soft white light, it is accepted that the body must be at about 3000K. This 3000K is the colour temperature. The usefulness of this knowledge in photography? Immense, unless you want to spend hours in the darkrooms … Continue reading AtoZ Challenge: C – Colour Temperature

AtoZ Challenge: A – Artificial Horizon ( Virtual Horizon)

Artificial Horizon (Virtual Horizon) The AH feature is prevalent in aeroplanes, gliders and also on ships. The main objective being an instant cognizance of one’s orientation by a glance. It uses a gyroscope for the attitude indications. While taking photographs, if there is a single horizontal reference that we wish to measure against, it is the visible horizon. We take the horizon to be a … Continue reading AtoZ Challenge: A – Artificial Horizon ( Virtual Horizon)