1. Biology and Photography
The f-number of the human eye varies from about f/8.3 in brightly lit conditions, to about f/2.1 in dark conditions.
To work out the focal length of the human eye, you would need to take into account the light-reflecting properties on liquids in the eye.
2. Today we snap as many photos every two minutes as humanity as a whole did in the 1800s.
3. A survey was taken in Britain last year. 76 percent of people were seen to be drunk in photos in which they were tagged.
4. Which is your best side? Your left? A study by Kelsey Blackburn and James Schriillo from Wake Forest University found that the left side of peoples’ faces are perceived and rates as more aesthetically pleasing than the right. They theorize that this is due to the fact that we perhaps present a greater intensity of emotion on the left side of our faces. Perhaps this is something you should consider when you take your portrait photographs!
5. The biggest SLR lens made to date is the Carl Zeiss Apo Sonnar T*. It weighs 256kg and has a focal length of 1700mm. It is designed specifically for use with a Hasselblad 6×6 medium format camera, and was custom-build for an anonymous customer who had a peculiar interest in wildlife photography.
6. The most expensive camera ever sold was a rare 1923 Leica camera, which went for $2.8 million at auction in Vienna.
7. The largest photographs in the world are made by stitching smaller images together. The largest seamless photograph in the world is of a control tower and runways at the US Marin Corps Air Station in El Toro, Orange County, California. It measure 32 feet high and 11 feet wide. It was taken in a decommissioned jet hanger, which was turned into a giant pinhole camera. The ‘film’ was a 32 feet x 111 feet piece of white fabric covered in 20 gallons of light-sensitive emulsion. The fabric was exposed to the outside image for 35 minutes. Print washing the image was done with hire hoses connected to two fire hydrants.
8. The longest photographic negative in the world is 129 feet and was created by Esteban Pastorino Diaz. The negative is of a panorama of major streets in Buenos Aires, Argentina. The images were captured by the slit camera, which was mounted to the roof of a moving car.
9. The largest collection of cameras in the world is held by Dilish Parekh of Mumbai, India. He has a collection of 4,425 antique cameras which he has been collecting since 1977.