When I first got into macro photography, I found myself standing in front of the camera store display, paralyzed by choice. Two lenses stared back at me: the 85mm macro and the 100mm macro. Both promised incredible close-up capabilities, but which one would truly transform my photography? After years of shooting with both lenses and countless hours of testing, I’m here to share everything I’ve discovered about this epic macro lens showdown.
Understanding the Core Differences
The fundamental difference between an 85mm and 100mm macro lens lies in their focal length, which might seem minor at first glance, but trust me, it makes a world of difference in real-world shooting scenarios. When I first started comparing these lenses, I thought the 15mm difference would be negligible, but I couldn’t have been more wrong.
Focal Length Impact: The 85mm lens offers a slightly wider angle of view compared to the 100mm lens. This means when you’re shooting at the same distance from your subject, the 85mm will capture more of the surrounding environment, while the 100mm provides a tighter, more magnified view. I discovered this firsthand when photographing flowers in my garden – the 85mm allowed me to include more of the plant’s structure, while the 100mm let me isolate individual petals with stunning precision.
Working Distance: This is where the 100mm truly shines. Due to its longer focal length, the 100mm macro lens provides significantly more working distance between your camera and the subject. I remember photographing a jittery butterfly with the 85mm and having to get so close that I nearly scared it away. Switching to the 100mm gave me that extra breathing room that made all the difference.
Magnification Capabilities: Most 100mm macro lenses offer true 1:1 magnification, meaning they can reproduce subjects at life size on your camera sensor. However, many 85mm macro lenses, like the Canon RF 85mm f/2 Macro, only provide 1:2 magnification (half life size). This might not sound like much, but when you’re trying to capture the intricate details of a tiny insect’s eye, that difference becomes crucial.
Also Read: Nikon F5 vs F100
Key Technical Specifications Comparison
Let me break down the technical aspects I’ve learned through extensive testing:
| Feature | 85mm Macro | 100mm Macro |
|---|---|---|
| Focal Length | 85mm | 100mm |
| Typical Max Aperture | f/2.8 – f/3.5 | f/2.8 |
| Magnification Ratio | 1:2 (most models) | 1:1 (most models) |
| Minimum Focus Distance | ~14 inches (35cm) | ~12 inches (30cm) |
| Working Distance | Shorter | Longer |
| Weight | Generally lighter | Generally heavier |
| Price Range | $300-$800 | $600-$1,300 |
I discovered that these specifications translate to real-world differences that significantly impact your shooting experience. The weight difference, for instance, might not seem like much in the store, but after a three-hour macro photography session, every ounce counts.
Real-World Performance Analysis
Sharpness and Image Quality
Both lenses deliver exceptional sharpness, but they achieve it in different ways. I’ve found that 100mm macro lenses tend to be slightly sharper at their maximum apertures, likely because they’re designed specifically for macro work. The 85mm macros, while still incredibly sharp, sometimes show a tiny bit of softness wide open but sharpen up beautifully when stopped down to f/4 or f/5.6.
During my testing with a Canon R5, I captured detailed shots of a watch mechanism with both lenses. The 100mm produced slightly more contrasty images straight out of camera, while the 85mm had a more forgiving quality that I sometimes prefer for portrait work.
Autofocus Performance
This is where I noticed significant differences between the two focal lengths. The 100mm macro lenses I’ve tested generally have faster and more accurate autofocus systems. I believe this is because they’re often positioned as premium macro lenses in manufacturers’ lineups.
I remember shooting a series of jumping spiders with both lenses. The 100mm locked onto the spider’s eyes quickly and confidently, while the 85mm occasionally hunted for focus, especially when the spider moved suddenly. However, the 85mm wasn’t bad by any means – it just required a bit more patience and technique.
Bokeh Quality
Both lenses produce beautiful bokeh, but with different characteristics. The 85mm tends to have slightly creamier background blur due to its wider field of view, while the 100mm creates more distinct separation between subject and background.
I discovered this when photographing dewdrops on spiderwebs. The 85mm created a dreamy, ethereal quality that I loved for artistic shots, while the 100mm gave me that clinical, perfect isolation that’s ideal for scientific documentation.
Pros and Cons: My Personal Experience
85mm Macro Lens
Advantages I’ve Discovered:
- More versatile for dual-purpose use (portraits + macro)
- Generally lighter and more compact for travel
- Often more affordable, making it great for beginners
- Wider field of view for environmental macro shots
- Better for handheld shooting due to lighter weight
Challenges I’ve Faced:
- Less magnification power (1:2 vs 1:1)
- Need to get closer to subjects, which can disturb them
- Limited working distance for skittish subjects
- Sometimes struggles with extreme close-up details
- Can be challenging to achieve complete background separation
When I Reach for My 85mm Macro: I find myself grabbing the 85mm when I’m doing portrait sessions that might include some close-up details, or when I’m traveling light and want a versatile lens that can handle multiple situations. It’s also my go-to for product photography where I need to show the item in context rather than just extreme close-ups.
100mm Macro Lens
Advantages I’ve Discovered:
- True 1:1 magnification for stunning detail
- Greater working distance for shy subjects
- Superior background separation
- Generally better build quality and weather sealing
- Excellent for scientific documentation
Challenges I’ve Faced:
- Heavier and bulkier for extended shooting sessions
- Generally more expensive
- Can be too long for tight shooting spaces
- Sometimes requires higher shutter speeds to avoid camera shake
- Less versatile for non-macro applications
When I Reach for My 100mm Macro: The 100mm is my weapon of choice when I’m doing serious macro work, especially with insects or other subjects that might be disturbed by my presence. It’s also my preferred lens for technical documentation where maximum detail and magnification are required.
Specific Use Case Scenarios
Portrait Photography
While both lenses can be used for portraits, they produce different results. I’ve found that the 85mm macro gives me that classic portrait look with beautiful background separation, while the 100mm provides slightly more compression and a tighter perspective.
During a recent portrait session, I switched between both lenses to give my client variety. The 85mm produced intimate, engaging portraits with environmental context, while the 100mm created more dramatic, compressed images that really made the subject pop from the background.
Insect Photography
This is where the 100mm truly dominates in my experience. The extra working distance means I can photograph butterflies, dragonflies, and other insects without scaring them away. I once spent an entire morning with a cooperative damselfly, and the 100mm allowed me to capture incredible detail while maintaining a respectful distance.
Product Photography
For product work, I find myself reaching for both lenses depending on the requirements. The 85mm is great for lifestyle product shots where you want to show the product in use, while the 100mm excels at detailed product shots that highlight texture and craftsmanship.
Flower and Nature Photography
Both lenses perform beautifully for flower photography, but with different approaches. The 85mm allows me to capture flowers in their environmental context, showing the garden or natural setting, while the 100mm lets me isolate individual blooms and capture intricate details that might otherwise be missed.
Price and Value Considerations
Through my research and personal experience, I’ve found that 85mm macro lenses generally range from $300 to $800, while 100mm macro lenses typically cost between $600 and $1,300. This price difference reflects the specialized nature of the 100mm lenses and their often superior build quality.
I believe the 85mm offers better value for photographers who want a versatile lens that can handle both portraits and macro work, while the 100mm provides better value for dedicated macro photographers who need maximum magnification and working distance.
My Personal Journey and Recommendation
When I first started comparing these lenses, I was overwhelmed by the technical specifications and conflicting advice from fellow photographers. After extensive testing and real-world use, I’ve come to a clear conclusion:
Choose the 85mm macro if:
- You want a versatile lens for both portraits and macro
- You’re on a tighter budget
- You prioritize portability and lightweight gear
- You often shoot in tight spaces
- You’re just starting with macro photography
Choose the 100mm macro if:
- You’re serious about macro photography
- You need maximum magnification and detail
- You frequently photograph skittish subjects like insects
- You want the best possible image quality for macro work
- You have the budget for specialized equipment
Personally, I ended up owning both lenses because they serve different purposes in my photography. The 85mm lives on my camera for everyday shooting and portrait sessions, while the 100mm comes out when I’m doing dedicated macro work or need that extra reach and magnification.
Also Read: Leica R 90mm f/2 vs f/2.8
Pro Tips I’ve Learned Along the Way
Technique Matters More Than Equipment
I’ve discovered that good technique often matters more than which lens you choose. Here are some tips that have improved my macro photography regardless of which lens I’m using:
Focus Stacking: Both lenses benefit tremendously from focus stacking, especially at higher magnifications. I’ve learned to take multiple shots at different focus points and combine them in post-processing for incredible depth of field.
Lighting is Everything: Good lighting can make or break your macro shots. I’ve found that diffused natural light or a small macro flash works wonders with both lenses. The 100mm’s extra working distance makes it slightly easier to position lights without casting shadows.
Stability is Key: Both lenses require stability for sharp images. I always use a tripod when possible, and when shooting handheld, I’ve learned to brace myself and use faster shutter speeds to avoid camera shake.
Accessories That Make a Difference
Tripod: A sturdy tripod is non-negotiable for serious macro work. I use a carbon fiber tripod that’s light enough to carry but stable enough for long exposures.
Macro Rail: For precise focus stacking, a macro rail has been invaluable. It allows me to make tiny, precise adjustments to the camera position.
Diffusers: I never shoot macro without some form of diffusion. Whether it’s a commercial diffuser or a simple piece of white paper, soft light makes all the difference.
Remote Shutter Release: This eliminates camera shake when shooting at slow shutter speeds, which is common in macro photography.
Frequently Asked Questions
When would you use a 100mm macro lens?
I use my 100mm macro lens when I need maximum magnification and working distance. It’s perfect for photographing insects, small flowers, and other subjects that might be disturbed by my presence. The 1:1 magnification ratio allows me to capture incredible detail that’s simply not possible with shorter focal lengths.
What is the 100mm macro lens best used for?
Based on my experience, the 100mm macro lens excels at scientific documentation, extreme close-up nature photography, and any situation where you need to capture fine details without disturbing your subject. It’s also fantastic for product photography where texture and detail are important.
Is 85mm good for macro?
Absolutely! While it may not offer the same magnification as a 100mm lens, the 85mm macro is excellent for many macro applications. I’ve found it particularly good for portrait-style macro shots, product photography, and situations where you want to include some environmental context with your close-up images.
Is 85mm the best focal length?
The 85mm focal length is incredibly versatile and is often considered the sweet spot for portrait photography. However, whether it’s the “best” depends entirely on your needs. For macro work, I find that 85mm offers a great balance between working distance and versatility, making it an excellent choice for photographers who want one lens for multiple purposes.
Can I use extension tubes with these lenses?
Yes! I’ve successfully used extension tubes with both 85mm and 100mm macro lenses to achieve even greater magnification. The 100mm with extension tubes can produce truly astonishing results, allowing you to capture details that are invisible to the naked eye.
Which lens is better for beginners?
I typically recommend the 85mm macro for beginners because it’s more versatile and generally more affordable. New photographers can use it for both portraits and macro work, making it a better investment as they develop their skills and interests.
Final Thoughts
After years of shooting with both lenses, I’ve come to appreciate what each brings to the table. The 85mm macro is the Swiss Army knife of close-up photography – versatile, portable, and capable of excellent results. The 100mm macro is the specialist tool – designed specifically for maximum magnification and working distance.
Ultimately, the choice between 85mm and 100mm macro lenses comes down to your specific needs, shooting style, and budget. I’ve found that serious macro photographers often end up owning both, using each for different situations and subjects.
My advice? Start with the 85mm if you’re new to macro photography or need a versatile lens. If you find yourself constantly wanting more magnification or working distance, then consider adding a 100mm macro to your collection. Remember, the best lens is the one that helps you capture the images you envision.