- Cousins reunion in Sydney, part of my celebration for passing FRACP written exams:)
- For the photographers reading this post, note the difference in the the 2 photos above. Both were taken using F2.8, with the same depth of field. The difference between the 2 photos is, in the first photo, the focal point is on Leong; in the second photo the focal point is on me. 2/3 depth of field lie in front of the focal point, and 1/3 depth of field lie behind the focal point. Therefore when the focus was on Leong, everybody in the photo appear to be sharp. But when the focus was on me, sitting much nearer to the camera, the people at the back looks blury. In order to get everyone in the photo to look sharp, the photographer could choose to focus on Leong, who is sitting about 2/3 into the depth of field. Or, he could choose to use a smaller apperture (ie F5.6 or F8 or more), therefore increasing the depth of field. That is provided there is enough light for correct exposure.
Read about Depth of field here….
http://www.cambridgeincolour.com/tutorials/depth-of-field.htm
The 3rd picture was taken with F4.5. Therefore there is a slightly deeper depth of field. Subjects look sharp.
Filed under: Photography | Tagged: Apperture, Depth of Field, Photography




















hey, u appear thinner ler… =)
Pilocarpine, appear to be… that is the key phrase.
Hey Congratulations Cheng Hiang.
Hard work and difficult times to battle in for you, but you have always been more than a match for many things. I respect and admire your courage and resolve my friend. Well deserved, and I hope well celebrated.
Thanks Taz