Camera Lens Essential Overview

Passion Project Day 4

Camera Lens Essential Overview

For the next four episodes of my Effective Learning Project, I am going to introduce the basic knowledge of Camera lens.

Camera Lens Essential I [October 1]

Understanding lens and its specification.

1. Focal Length:

Wide-angle, Standard, Telephoto
Focus Length
Focus Length
2. Aperture:
Aperture standard for professional prime lens and zoom lens
3. Two types of lens:
Prime lens & Zoom lens
Nikon Prime Lens: 28mm f/1.8G, 50mm f/1.8G, 85mm f/1.8G

4. The professional zoom lens series

Hebrew Trinity: 14-24mm f/2.8G, 24-70mm f/2.8G, 70-200mm f/2.8G

Camera Lens Essential II [October 8]:

Real-world Lens Selection Tips

1. Why prime Lens?

Portrait, Sports, Landscape, and Street Photography.
Japan | Sony A6000 20mm f/2.8G  © 2017 Leon Liu, Jianle

2. Why zoom Lens?

Travel, Video recording.
Qing hai | Nikon D500 16-35mm f/4G © 2017 Leon Liu, Jianle

Camera Lens Essential III [Nikon] [October 15]:

Quick Overview of Nikon lens and its technology
Nikkor Lens

1. VR (Vibration Reduction)

2. SWM (Silent Wave Motor)

3. Nano-crystal Coating (N)

Camera Lens Essential IV [Sony] [October 22]:


Sony G Master Lens


Quick Overview of Sony lens and its technology

1. 5-Axis Image Stabilization

2. FHB (Focus Hold Button)

3. Circular aperture

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