Photomicrography histry, introdution, camera, application

photomicrography histry, introduction ,camara, application this all are usefull to study as a notes,

1. Photomicrograpghy Nandeesha .s Plant science Bangalore central university

2. Introductions Thomas Wedgwood (1771 – 1805) is the first who proposed the possibility of photomicrograph. Thomas Wedgwood

3. Photography From the Greek "PHOS” - Light “ GRAPHE” - Drawing Literally, photography is “Drawing with Light”. Traditionally, photography is considered to mean the recording of images on light-sensitive media, using a camera. Introduction

4. Photomicrography A light micrograph or photomicrograph is a micrograph prepared using an optical microscope, a process referred to as photomicroscopy. a photomicrograph is a technical document that can be of great value to science or industry, a good photomicrograph is also an object of beauty. Photomicrography encompasses the techniques of both black and white and color photography.

5. Photomicrography is used to study the external appearance and structure of objects. The ultimate function of the microscope and its illumination is to produce the best possible image of the specimen. The ultimate function of the camera is to capture the best possible image of the specimen.

6. CAMERA

7. In compound microscope use a trinocular tube (binocular tubes for viewing and a third vertical tube for permanent attachment of the camera). The 35 mm film cameras were used as standard for photomicrography. photomicrography as the camera is needed only to store, expose, and advance the film. The microscope itself acts as a camera lens. The adapting point and shoot cameras to a microscope is the very fast shutter speeds (1/25 to 1/50 second) utilized by these popular cameras.

8. Advantages Of Cameras  cheap  portable  can be operated without PC due to “Memory Cards” Disadvantages of Cameras  image compression JPEG or FLASHPIX  loss of resolution, image artifacts  often low spatial resolution  all single chip cameras  integrated lenses: difficult adaptation  often noisy images

9. Light Source Natural Sunlight (5400°K) Florescent (7500°K) Florescent (5000°K) Florescent “Black-Light” Incandescent (±2500°K) Mercury Vapour Metal Halides Quartz-Iodine Carbon Arc Lasers

10. Pines stem Woody plant stem

11. Mosquito Immortalized Human skin cells

12. Climbing fern Marine algae

13. Pollen germination Common dandelion flower

14. Corona virus

15. Medical research and diagnostics Ecology and environmental contaminants Agriculture and food-microbial processes Criminal investigations Forestry and forest products Electronics Publications Educational textbooks, curricula and interactive CD-ROMs Exhibitions Application of photomicrography

16. Thank you