1. Principles of Digital Photography Using Digital Cameras to Enhance Mine Training Ted Farrish Training Specialist Mine Safety and Health Administration

8. Georges-Pierre Seurat (December 2, 1859 – March 29, 1891) was a French painter and the founder of Neo-impressionism.

10. Seurat created this scene using tiny dots of different colors. Similarly, a digital camera’s imaging device uses pixels to create a photo.

16. Megapixels and Resolution 2400 x 1800 = 4.3 mp 1600 x 1200 = 1.9 mp 640 x 480 = .3 mp

18. The smaller the pixels, and the greater their number, the less apparent the "pixelization" of the image. Also known as the "jaggies".

22. Image Sensors Summary Different image sensors render colors differently, have different amounts of "grain," different sensitivities to light, and so on. The only ways to evaluate these aspects are to examine some sample photographs from the camera or read reviews written by people you trust. Despite their differences, both types of sensors are capable of giving very good results and both types are used by major camera companies in both consumer and professional. Canon even uses CMOS sensors in their high-end digital SLRs.

23. Choosing a digital camera that fits your needs

28. Lenses

30. Quick Quiz Which lens has a larger opening (aperture): one with an aperture of F1.8 or one with an aperture of F2.8?

31. Quick Quiz Which lens has a larger opening (aperture): one with an aperture of F1.8 or one with an aperture of F2.8? ANSWER: F1.8

32. A Good Aperture Range F1.8 - F16 This tells us that the camera has an aperture range of F1.8 to F16; the maximum aperture is F1.8, and the minimum aperture is F16. There are 5 f-stops between the max and min aperture. If your camera's lens is currently set at an aperture of F5.6, closing it by 1 f-stop would mean selecting F8; opening it up by 1 f-stop would mean selecting F4. F16 F11 F8 F5.6 F4 F2.8 F1.8

33. Aperture Settings and Shutter Speed 1/4 1/8 1/15 1/30 1/60 1/125 1/250 F16 F11 F8 F5.6 F4 F2.8 F1.8

34. Tips for Shooting Rule of Thirds

36. Wide Angle -- Depth