AtoZ Challenge: V – Vignetting

Vignetting In the olden days, when the lens and the film quality were not as amazing as today, the edges of the photos would become dark. With advent of better technology and processes, now a days, one has to to critical search to find vignetting occurring natively in the photos. Where we see more of its use is as filters. This photo above, has been … Continue reading AtoZ Challenge: V – Vignetting

AtoZ Challenge: L – Latitude

Latitude This is here is a term which is used to describe a range. Common usage being, a┬ácertain camera provides more/less latitude than another one. The range in question is the exposure range, over which one can produce acceptable results. The above photo is “As shot” +2 exposure value, while the one below is -1. So, one can say that the latitude from -1 to … Continue reading AtoZ Challenge: L – Latitude

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: 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)