Here's a breakdown of the pros and cons, and why so many portrait photographers love the 70-200mm:
Why Portrait Photographers Love the 70-200mm:
* Excellent Compression: The 70-200mm is renowned for its ability to compress the background, making the subject stand out and creating a shallow depth of field (bokeh). This is a key element in many beautiful portraits. It brings the background closer, often blurring it more dramatically.
* Flattering Focal Lengths: The range of focal lengths (70-200mm) offers a lot of flexibility.
* 70-100mm: Great for full-body or waist-up shots. Less distortion than wider lenses at these distances.
* 135mm-200mm: Excellent for headshots and close-ups. Provides beautiful bokeh and allows you to shoot from a comfortable distance.
* Shooting Distance: Allows you to maintain a comfortable distance from your subject. This is particularly important for:
* Candid Shots: Capturing natural expressions without being intrusive.
* Shy Subjects: Giving them space to relax.
* Outdoor Shoots: Navigating crowds or obstacles.
* Sharpness and Image Quality: High-quality 70-200mm lenses are often incredibly sharp, producing crisp, detailed images.
* Background Blur (Bokeh): The combination of focal length and aperture creates beautiful, creamy bokeh that separates the subject from the background. A fast aperture (e.g., f/2.8) is especially desirable for maximizing this effect.
* Versatility: While primarily used for portraits, it can also be used for other genres like sports, wildlife, and events.
Why You Might Not *Need* a 70-200mm:
* Price: Good quality 70-200mm lenses, especially those with a fast aperture (f/2.8), are expensive. This can be a barrier to entry for beginners.
* Size and Weight: These lenses are large and heavy, which can be tiring during long shoots. This makes them less ideal for casual or street portraiture.
* Indoor Shooting: The longer focal lengths can be restrictive in small indoor spaces. You might not have enough room to move back and frame your subject properly.
* Alternative Options: Other lenses can produce great portraits too. Here are some alternatives and when they might be preferable:
* 50mm lens: Affordable, lightweight, and versatile. Great for environmental portraits and when you want a wider field of view. Requires you to get closer to the subject.
* 85mm lens: A classic portrait lens known for its beautiful bokeh and flattering perspective. A good compromise between the 50mm and 70-200mm. Often more affordable than the 70-200.
* 35mm lens: Good for environmental portraits and telling a story. Not as isolating as longer lenses.
Consider These Questions Before Buying:
* What kind of portraits do you shoot? (Studio, outdoor, environmental, candid?)
* What is your budget?
* What is your shooting style? (Do you prefer to be close to your subject or maintain a distance?)
* What type of camera do you use? (Full-frame vs. crop sensor will affect the effective focal length).
* Where do you typically shoot? (Indoor vs. outdoor space)
* How important is shallow depth of field to you?
* How much weight are you willing to carry?
Conclusion:
While not strictly essential, a 70-200mm lens is a highly valuable tool for many portrait photographers. Its compression, flattering focal lengths, and ability to create beautiful bokeh make it a favorite for achieving professional-looking results. However, its price, size, and weight are factors to consider.
Ultimately, the best lens for you depends on your individual needs, budget, and shooting style. Before investing in a 70-200mm, consider renting one to see if it suits your workflow and desired aesthetic. Also, experiment with other focal lengths to understand what works best for *your* vision. Don't get caught up in the "must-have" mentality; focus on the lenses that help you create the images you want to create.