Let's break down the arguments for and against needing a 70-200mm lens for portrait photography:
Arguments FOR a 70-200mm for Portraits:
* Compression: This is the big one. The longer focal lengths (135mm, 200mm) on a 70-200mm provide significant compression. This means the background appears closer to the subject than it actually is, and features like noses are less exaggerated, often resulting in a more flattering and balanced look.
* Bokeh: The wide apertures often found on 70-200mm lenses (f/2.8 or f/4) create beautiful background blur (bokeh), isolating the subject and drawing the viewer's eye to them. This is particularly desirable for portraiture.
* Distance: Allows you to create distance between yourself and the subject. This can be helpful for:
* Candid Shots: Capture more natural expressions without making the subject feel self-conscious.
* Comfort: Some subjects are more comfortable being photographed from a distance.
* Flexibility: Allows you to shoot in tighter spaces where a wider lens might not be ideal, or allows you to isolate the subject from distracting backgrounds.
* Versatility: While primarily used for portraits, a 70-200mm is also excellent for other genres like sports, wildlife, and events, making it a valuable investment if you shoot more than just portraits.
* Sharpness: High-quality 70-200mm lenses are generally very sharp, delivering excellent detail in your portraits.
* Professionalism: Using a 70-200mm lens, especially an f/2.8 version, often conveys a sense of professionalism to clients.
Arguments AGAINST a 70-200mm for Portraits:
* Cost: Good 70-200mm lenses, especially f/2.8 versions, can be quite expensive.
* Size and Weight: These lenses are large and heavy, making them cumbersome to carry and use for extended periods. This can be a problem if you're shooting on location or traveling.
* Learning Curve: Using longer focal lengths effectively takes practice. You need to understand how compression affects your images and learn to control your camera shake.
* Not Ideal for All Portrait Styles: If you prefer environmental portraits that show more of the surrounding area, a wider lens might be more appropriate.
* Alternatives Exist: There are other lenses that can achieve similar results, such as:
* 85mm Lens: A classic portrait lens known for its beautiful bokeh and flattering perspective. Often smaller and lighter than a 70-200mm.
* 135mm Lens: Offers similar compression to the longer end of the 70-200mm but is often more affordable and compact.
* 50mm Lens: Can be used for portraits, especially environmental portraits, and is very versatile.
* Zoom Lenses (24-70mm, 24-105mm): These can be useful for portraits if you prioritize versatility and don't necessarily need the compression and shallow depth of field of a longer lens.
Here's how to decide if you need a 70-200mm lens for portraits:
* What is your portrait style?
* Close-up headshots? A 70-200mm or an 85mm/135mm might be ideal.
* Environmental portraits? A wider lens (35mm, 50mm) could be better.
* Full-body shots? A 70-200mm can be great for compressing the background, or a 50mm/85mm can work well depending on your composition.
* What kind of bokeh do you want?
* Creamy, blurred backgrounds? A fast aperture (f/2.8 or wider) is crucial.
* How important is portability?
* If you travel a lot or need a lightweight setup, a smaller lens might be a better choice.
* What is your budget?
* A 70-200mm can be a significant investment, so consider your budget carefully.
* Do you shoot other genres of photography?
* If you also shoot sports, wildlife, or events, a 70-200mm can be a very versatile lens.
In conclusion:
A 70-200mm lens is a powerful tool for portrait photography, offering excellent compression, beautiful bokeh, and versatility. However, it's not a *necessity* for every portrait photographer. Consider your shooting style, budget, and portability needs before deciding whether to invest in one. Try renting one before you buy to see if it fits your workflow. You might find an 85mm or 135mm prime lens offers a similar aesthetic in a smaller and more affordable package, or that a wider lens suits your style better.