Why a 70-200mm IS Popular for Portrait Photography:
* Compression: Longer focal lengths (like 70-200mm) provide subject compression. This means the background appears closer to the subject than it actually is, creating a more pleasing and often more flattering look. It can minimize distortion and give a more accurate representation of facial features.
* Bokeh: Longer focal lengths combined with wide apertures (like f/2.8) produce beautiful, creamy bokeh (background blur). This helps isolate the subject and create a professional, dreamy aesthetic.
* Working Distance: The 70-200mm allows you to maintain a comfortable working distance from your subject. This can be beneficial for:
* Candid Shots: You can capture more natural expressions without being right in their face.
* Directing: You have room to move around and give clear instructions.
* Comfort: Some people are uncomfortable being close to a camera.
* Versatility: The zoom range allows for a variety of shots, from full-length to tight headshots, all with one lens. You can quickly adjust your framing without physically moving.
* Image Quality: Generally, 70-200mm lenses (especially the higher-end models) are known for their excellent sharpness, contrast, and overall image quality.
Why You Might NOT Need a 70-200mm:
* Cost: 70-200mm lenses, especially those with wide apertures (f/2.8), are expensive. This can be a significant investment, especially when starting out.
* Size and Weight: These lenses are large and heavy, making them less convenient for travel or long photoshoots. They can be tiring to hold for extended periods.
* Indoor Space Limitations: In small studios or indoor spaces, the long focal length may be restrictive. You might not have enough room to move back and get the desired shot.
* Alternative Lenses: There are many other excellent portrait lenses available, each with its own strengths:
* 50mm: A classic portrait lens. Affordable, versatile, and great for environmental portraits. Requires you to be closer to the subject.
* 85mm: Considered by many to be the "sweet spot" for portraiture. Good compression and bokeh. Often more compact and affordable than a 70-200mm.
* 35mm: Excellent for environmental portraits and capturing a wider scene. Requires a different approach to posing and composition.
* Your Style: The best lens depends on your individual portrait style. If you prefer environmental portraits that show more of the surrounding environment, a wider lens might be a better fit. If you prefer tight, intimate headshots, a shorter telephoto lens could be suitable.
Here's a breakdown to help you decide:
Consider a 70-200mm IF:
* You primarily shoot outdoors.
* You value subject compression and beautiful bokeh.
* You want a versatile lens that can handle a variety of shots.
* You shoot a lot of candid portraits.
* Budget isn't a major concern.
* You photograph events or situations where you need to be further from your subject.
Consider an Alternative IF:
* You're on a tight budget.
* You primarily shoot in small studios or indoor spaces.
* You prefer a lighter, more compact setup.
* You prefer environmental portraits or have a specific shooting style that doesn't require long focal lengths.
* You prefer being very close to your subject.
Ultimately, the best way to decide is to try different lenses and see what works best for you and your style. Rent a 70-200mm for a weekend and see if it fits your workflow and the type of portraits you like to create. Experiment with different focal lengths using a zoom lens or by renting different prime lenses.
In Conclusion:
A 70-200mm lens is a fantastic tool for portrait photographers, offering excellent compression, bokeh, and versatility. However, it's not a necessity. Consider your budget, shooting environment, personal style, and the types of portraits you want to create before investing in this lens. There are many other excellent portrait lenses available that may be a better fit for your needs.