The photographic Lenses

The objective or lens of our camera is the most important and delicate part of your photographic equipment. One of the differences between a compact camera and a SLR is the possibility of using high quality and interchangeable lenses. These lenses are designed and built especially for professional use, they symbolize the high range in terms of optical quality and versatility since you can use a specific lens for each type of photography (or video).
Once you have your first SLR camera, you will have to look for a lens other than the one that came in the kit. When we are starting out, it is perfectly understandable that we feel satisfied with our new SLR and a single lens, with a more or less wide zoom, and that it is enough to cover all our photographs.
But as we progress, as we aspire to grow in our training, we think about what objective to put on our camera to replace, complement or expand the ones we already have. There are objectives that provide added value. They are a tool that you can use to expand your creativity or even give your images a more professional touch.
That is why I intend to expose and explain everything you need to know about the different types of photographic lenses that exist, we will examine all their "hidden" characteristics and a detailed review of the existing lens offers for sale, their greater or lesser benefit, and its influence on the type of photos we take.
Photography is an exciting world, an art that allows you to treasure unique moments. When you decide to take the leap and buy a reflex camera is when you begin to learn even more about the possibilities it offers, thanks mainly to the use of high-quality interchangeable lenses.
The series includes the following titles:
1. Black and White Art
2. Color and Photography
3. The Exposure
4. Focus and Sharpness
5. Photographic Illumination
6. Composition and Photographic Language
7. The Digital Camera
8. Photographic Lenses
9. Practical guide of Lightroom
10. Photoshop for Photographers
Contents:
The Importance of the Objective.
The Lens Groups.
The Target Mount.
The Luminosity of a Target.
The Diaphragm and the Numbers f.
The Image Stabilizer.
The Focus System.
How Does Autofocus Work?
Focus by phase detection or by contrast detection.
Hybrid Focus and Dual Pixel.
Minimum Focus Distance.
Classification by Types of Objectives.
Fixed Focal Objectives.
Variable Focal Objectives.
Special Objectives.
The Focal Length of the Objective.
Image Circle or Crop Factor.
Identification Elements in the Objectives.
Basic Terminology for Objectives.
Acronyms in Canon, Nikon, Pentax, Tamron...
MTF Charts to Measure the Sharpness of a Target.
Objective Diffraction.
Equivalent Resolution and Apparent Resolution.
Choosing a Telephoto Lens.
Choice of All Terrain Objectives.
Choice of Wide Angle Objectives.
Choice of Macro Objectives.