Being an engineer (who has struggled through graphs for most of his academics) I decided to learn more about histograms before I move ahead with my photography practice. This is essential for the exposure and tone (yes , yes there are a lot of photographic terms that I should know , I will write it down in a blog post ), So I Google it out and found and interesting video about the same. I started to experiment with my camera and the images and its histogram are shown in this blog post.
Basically, Histogram represents the distribution of data. Now in our case , the data is a pixel.So, histograms shows us the distribution of pixels on an axis of tone
The left side of the horizontal axis represents the black and dark areas, the middle represents medium grey and the right hand side represents light and pure white areas. The vertical axis represents the size of the area that is captured in each one of these zones. Thus, the histogram for a very dark image will have the majority of its data points on the left side and center of the graph. Conversely, the histogram for a very bright image with few dark areas and/or shadows will have most of its data points on the right side and center of the graph..
X=1/200 s; synchronizes with shutter at 1/200 s or slower
Nikon Multi-CAM 1000 autofocus sensor module with TTL phase detection, 11 focus points (including one
cross-type sensor), and AF-assist illuminator (range approx. 0.5 to 3m/1 ft. 8 in. to 9 ft. 10 in.)
-1 to +19 EV (ISO 100, 20°C/68°F)
” Autofocus (AF): Single-servo AF (AF-S); continuous-servo AF (AF-C); auto AF-S/AF-C selection (AF-A); predictive focus tracking activated automatically according to subject status
” Manual focus (MF): Electronic rangefinder can be used
Can be selected from 11 focus points
Single-point AF, dynamic-area AF, auto-area AF, 3D-tracking (11 points)
Focus can be locked by pressing shutter-release button halfway (single-servo AF) or by pressing AE-L/AF-L button
The SLR camera is a complex device to operate,so first thing first – Know about it. Unlike the best mirrorless camera set ups, you will need some custom configurations, it’s best to read the manual and take it one step at a time.
As I am using Nikon D3100 I google’d and found this amazing video by Froknowsphoto. I am embedding the same