50mm Lens:
Pros:
* Versatile: The 50mm is a versatile focal length that can be used for a variety of photography genres, not just portraits. This makes it a good investment if you're looking for a lens that you can use in multiple situations.
* More Affordable: 50mm lenses are often more affordable than 85mm lenses, especially if you're looking at lenses with wide apertures (e.g., f/1.8, f/1.4).
* Works Well in Tight Spaces: The wider field of view makes it easier to shoot portraits in smaller rooms or crowded environments. You don't need as much space between you and your subject.
* Contextual Portraits: The 50mm lens captures more of the background, which is ideal if you want to show your subject in their environment and tell a story.
* Less Distortion (Generally): Generally exhibits less distortion than wider focal lengths.
Cons:
* Less Subject Isolation: The wider field of view means less background blur (bokeh) at the same aperture as an 85mm lens. You'll need a wider aperture or to get closer to your subject to achieve a similar effect.
* Can Require You to Get Closer: To fill the frame with your subject, you'll need to get physically closer to them. Some subjects may feel uncomfortable with this proximity.
* Perspective Distortion at Close Range: Getting too close to your subject with a 50mm can lead to perspective distortion (e.g., exaggerating the size of the nose).
85mm Lens:
Pros:
* Excellent Subject Isolation: The narrower field of view creates a shallower depth of field, resulting in beautiful background blur (bokeh) that isolates your subject.
* Flattering Perspective: The 85mm focal length is known for its flattering perspective on facial features, making it a favorite among portrait photographers. It tends to compress features slightly, which many find more aesthetically pleasing.
* Comfortable Shooting Distance: You can maintain a comfortable distance from your subject while still filling the frame, which can make them feel more relaxed and natural.
* Separation from Background: Creates a clear separation between the subject and the background, drawing the viewer's attention to the subject.
Cons:
* More Expensive: 85mm lenses, especially those with wide apertures, tend to be more expensive than 50mm lenses.
* Less Versatile: The narrower field of view makes it less suitable for general photography. It's primarily a portrait lens.
* Requires More Space: You need more space to shoot with an 85mm lens, which can be challenging in small rooms or crowded environments.
* Less Context: Captures less of the background, which may not be ideal if you want to show your subject in their environment.
Here's a quick table summary:
| Feature | 50mm | 85mm |
|--------------------|------------------------------------|------------------------------------|
| Versatility | High | Lower |
| Price | Generally More Affordable | Generally More Expensive |
| Subject Isolation | Lower | Higher |
| Perspective | More Neutral, can distort at close range | Flattering, compressed features |
| Working Distance | Closer | Further |
| Space Required | Less | More |
| Background Context | More | Less |
Which One Should You Choose?
Here are some considerations to help you decide:
* Budget: If you're on a tight budget, a 50mm lens is often a more accessible option.
* Shooting Environment: If you frequently shoot in tight spaces or need to capture the environment around your subject, a 50mm lens might be better. If you have plenty of space and want to isolate your subject, an 85mm lens is a good choice.
* Type of Portraits: If you prefer environmental portraits that tell a story, a 50mm lens might be better. If you prefer close-up portraits with blurred backgrounds, an 85mm lens is a good choice.
* Personal Preference: Ultimately, the best way to decide is to try both focal lengths and see which one you prefer. Renting lenses is a great way to test them out before making a purchase.
* Your Existing Gear: What other lenses do you have? If you have a telephoto, maybe a 50mm would round out your kit. If you have a wide angle, perhaps the 85mm is a better fit.
* Sensor Size: These focal lengths act slightly differently on different sensor sizes. On an APS-C sensor, a 50mm lens becomes closer to an 80mm equivalent, making it more similar to an 85mm on a full-frame camera. Conversely, a full frame 85mm would act more like a 127.5mm.
In conclusion:
* Choose 50mm if: You need a versatile and affordable lens, often shoot in tight spaces, want to capture the environment around your subject, or are new to portrait photography.
* Choose 85mm if: You prioritize subject isolation and flattering perspective, have plenty of space to work with, and are looking for a dedicated portrait lens.
It is worth noting that both of these focal lengths are very popular and capable. You can achieve fantastic results with either one. The "best" one for *you* will come down to the specific aspects of your needs and shooting style. Good luck!