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It has been 12 years since I stepped onto the path of photography. From various film cameras to Nikon and Canon DSLRs, and then to Sony's mirrorless system, I've gone through a lot of equipment, spending money constantly. There were times when I felt embarrassed, but now I'm more focused on Zhang Aunt's work. I've always been in a state of deep immersion. Today, I was very interested and decided to write my first original article. My writing skills are still poor, and the logic may be a bit messy. Please just take it as a casual read. Feel free to comment without any pressure—just spray it out, and I'll interact with everyone during my non-working hours. Here we go.
Writing Background:
Recently, the A6300 has caught my attention for its performance in the micro-sigma market. It's been five years since I last upgraded my gear. Technology changes rapidly, and much of the knowledge is outdated, especially in the field of Dafa. However, my accumulated experience as a photographer wasn't enough. After reading several original posts and comments, I found that some basic photography knowledge was missing, and people were still fighting over incorrect information. I wanted to share some fundamental concepts with you.
The article is quite long, so here’s a quick summary:
The New York College of Photography textbook, known as the "Photographic Bible," is an excellent resource. I recommend it for anyone interested in photography. The current price is around 259 yuan, but you can find it for under 100 yuan. When you buy this book, it's like getting double the value of your camera gear. This investment is definitely worth it!
Some Common Mistakes and Misconceptions in Buying Lenses:
This article mainly focuses on lens purchases. Let's look at some common questions and errors photographers often make:
- Buying a lens in one step, not considering the bull (not buying anything else).
- Bigger aperture is always better, right? More is better.
- I want a lens that can shoot landscapes, portraits, night scenes, babies, and travel, while being light and with a large aperture.
- Your photos look great—did you use a professional lens? My lens isn’t good enough to match your work.
- Residual width (swing) is useless; full-frame is the way to go.
- Equivalent frame, equivalent aperture, equivalent shutter speed—full-frame is king.
The Beginning of the Article:
First, what is a lens, and why do we need one?
You can check Zhang Ama’s post for a basic understanding.
This is the source of all photographic techniques. Light passes through a small hole and creates an image on a white cloth. Replacing it with a photosensitive material allows us to record the image. The first photograph was taken using a small hole in a wooden block.
Lenses serve two main purposes and have one side effect:
- Increasing the amount of light entering the camera. In the figures above, you can see how a lens allows more light to pass through compared to a simple pinhole. This makes modern photography possible, as it reduces exposure time significantly.
- Controlling the amount of light through the aperture. The maximum aperture determines how much light can enter, while the minimum controls how little light can pass through. This allows for greater flexibility in different lighting conditions.
- Side Effect – Controlling Depth of Field. The depth of field refers to the range of sharpness in a photo. A larger aperture results in a shallower depth of field, which is useful for isolating subjects.
Conclusion: The main role of a camera lens is to control the amount of light and enhance image quality through three aspects: the lens determines the maximum light intake, the aperture controls the minimum, and the shutter freezes motion. The side effect is the concept of depth of field, which helps create visually striking images.
Second, the Secret of Lens Focal Length:
The most common question beginners ask is, “What lens should I buy?†But the real question should be, “What focal length do I need?â€
Terms like “sunshine lens,†“portrait lens,†“macro lens,†and “telephoto†refer to focal lengths. These are based on usage habits and perspective, not inherent properties of the lens itself.
For example, a 50mm lens is 50mm regardless of the camera system. Its purpose depends on how it's used, not the focal length alone.
Understanding focal length is essential for choosing the right lens. Different focal lengths affect composition, perspective, and depth of field. Knowing these differences helps you make informed decisions about your gear.
Third, the Difference Between Top Lenses and General Lenses, and How to Choose:
If you're still confused, let's continue. I won't describe lenses as "good" or "bad" based on price. What defines a "good" lens? A 28-135mm f/4 lens costs 14,800 yuan, but that doesn't mean it's inferior. Quality depends on many factors, including design, materials, and optical performance.
Top lenses offer superior resolution, consistent image quality, better color control, and larger apertures. They also tend to be heavier and more expensive. However, general lenses can be more affordable and practical for everyday use.
When choosing a lens, consider your needs, budget, and shooting style. For street photography, a lightweight, versatile lens might be ideal. For professional work, a high-quality prime lens could be essential.
Final Thoughts:
Ultimately, the best lens is the one that suits your needs. Whether you're a beginner or an experienced photographer, understanding your goals and limitations will help you make the right choices. Don't get caught up in trends or specs—focus on what works for you.
Postscript:
To answer my initial questions:
- Don’t rush into buying a lens. If you’re unsure about your interest in photography, start with something affordable.
- Bigger aperture isn’t always better. Consider your needs and physical limitations.
- Trying to cover all scenarios with one lens is impractical. Focus on your style and upgrade gradually.
- Great photos aren’t just about equipment. Skill, composition, and creativity matter more.
- Full-frame isn’t the only option. APS-C and other formats can be perfect for many situations.
- Equivalence is a tool, not a rule. Composition and technique are still the most important factors.
After a long day of writing, I hope this helps you. I’ll keep updating with more tips and insights. Thank you for reading!
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