Focal Length Work Diary

Worst-

The above images are my first set of focal length images, they are all quite inconsistent, the majority of the shoot is dark looking and almost distorted, and then there are some shots which are really bright and unmatching. The difference in shots in terms of size of subject doesn't look that drastic, I measured the difference in each shot by stepping a round a foot closer to the subject each time, this obviously is a factor why light would change throughout shoot, and inconsistence in change of size in each shot.

Favourite-

This shoot is a lot better and a lot more consistent than the last, these factors are controlled by the fact I changed the focal length for each shot instead of actually moving the camera, therefore I haven't lost the frame or 180 degree angle of the shot. All the light and change in size is consistent throughout. I used a tripod for both shoots, I increased shutter speed to 1/125 and the F stop, helping to capture the image with more clarity and speed, also the images have a really glowing light, illuminating the whole composition.

Focal Length Straight Images

Series 1 (18mm) -

                                                                             55mm
                                                                           

                                                                           45mm

35mm

                                                                        24mm

18mm

Favourite-

18mm

24mm

35mm

                                                                            45mm

55mm

Focal Length Technique Post

Definition- The focal length of the lens is the distance between the lens and the image sensor when the subject is in focus, usually stated in millimeters (e.g., 28 mm, 50 mm, or 100 mm). In the case of zoom lenses, both the minimum and maximum focal lengths are stated, for example 18–55 mm.

Field of view is determined by the angle of view from the lens out to the scene and can be measured horizontally or vertically.

Larger sensors or films have wider FOV's and can capture more of the scene.

In 35mm photography, lenses with a focal length of 50mm are called "normal" because they work without reducing magnifying and creates images the way we see the scene with our naked eyes (same picture angle of 46 degrees).

Wide angle lenses (short focal length) capture more - wide picture angle.

Telephoto lenses (long focal length) narrow picture angle.