When it comes to classic 35mm film cameras, few names evoke as much admiration as Olympus’s OM series. The Olympus OM1 and its successor, the OM1N, represent the pinnacle of compact mechanical SLR design. As a film photography enthusiast who’s shot extensively with both cameras, I’m here to share my hands-on experience and help you understand the subtle but important differences between these two legendary cameras.
The Olympus OM1, introduced in 1972, revolutionized the camera industry with its compact size, light weight, and professional features. It was designed to compete with larger, heavier SLRs from Nikon and Canon, offering photographers a more portable option without sacrificing quality. The OM1N, released in 1979, built upon this legacy with several refinements that improved the user experience.
In this comprehensive comparison, I’ll break down the differences between these two classic cameras, covering everything from design and features to handling and value. Whether you’re a seasoned film photographer or just beginning your analog journey, this guide will help you decide which of these Olympus classics deserves a place in your camera bag.
A Brief History of the Olympus OM System
Before diving into the comparison, it’s worth understanding the context in which these cameras were created. The Olympus OM system was the brainchild of Yoshihisa Maitani, a brilliant designer who believed that cameras could be smaller, lighter, and more ergonomic without compromising on quality.
When the OM1 was introduced in 1972, it was a revelation. At a time when professional SLRs were large and heavy, the OM1 offered similar capabilities in a package that was significantly smaller and lighter. It quickly gained a following among professional photographers, particularly photojournalists who appreciated its portability.
The OM1’s success led to the development of an entire system of lenses and accessories. By the late 1970s, Olympus had established itself as a major player in the professional photography market. The OM1N, introduced in 1979, was not a radical redesign but rather an evolution of the original OM1, incorporating improvements based on user feedback.
I discovered the OM system when I inherited my grandfather’s OM1N about five years ago. Since then, I’ve added an original OM1 to my collection, and both cameras remain among my favorites for their build quality, handling, and the sheer joy of using them.
Physical Comparison: Design and Build Quality
At first glance, the OM1 and OM1N look nearly identical. Both cameras feature the same compact, minimalist design that made the OM series famous. However, upon closer inspection, several differences become apparent.
Size and Weight
Both cameras have identical dimensions (approximately 136mm x 83mm x 50mm) and weigh around 510g without a lens. This compact size and light weight were revolutionary when the OM1 was introduced and remain impressive by today’s standards.
Body Construction
Both cameras feature all-metal construction with leatherette covering. The build quality is exceptional on both models, with precise fit and finish that speaks to their professional heritage. I’ve dropped both cameras (accidentally, of course) and they’ve survived without any functional damage, a testament to their robust construction.
Top Plate Differences
The top plate is where you’ll find the most noticeable differences between the two cameras. The OM1N has a redesigned shutter speed dial with a more positive feel and better tactile feedback. The film advance lever on the OM1N has a plastic tip, while the OM1’s is all metal. The OM1N also has a small flash ready/sufficient flash light in the viewfinder, which the original OM1 lacks.
Bottom Plate Differences
On the bottom plate, the OM1N has a battery compartment that’s easier to access than the OM1’s. Both cameras use the same PX625 mercury battery (or modern equivalents) for their light meters, but the OM1N’s compartment is designed for easier battery changes.
Feature Differences: What Sets Them Apart
While the OM1 and OM1N share many features, there are several key differences that set them apart:
Flash Capabilities
This is perhaps the most significant difference between the two cameras. The OM1N has a direct contact in the hot shoe for flash, while the OM1 requires a separate flash cord that connects to the PC terminal on the front of the camera. The OM1N also has a flash ready/sufficient flash light in the viewfinder, which indicates when the flash is ready and if it will provide sufficient light for the exposure.
I discovered the importance of this difference during a wedding shoot I did last November. Using the OM1N with a modern flash was straightforward, while the OM1 required an adapter and was less intuitive to use in a fast-paced environment.
Shutter Speed Dial
The OM1N’s shutter speed dial has been redesigned with a more positive feel and better tactile feedback. The markings are also slightly larger and easier to read. While this might seem like a minor change, it makes a significant difference when you’re shooting quickly and need to adjust settings without looking away from the viewfinder.
Film Advance Lever
The OM1N’s film advance lever has a plastic tip, while the OM1’s is all metal. This change was made to improve ergonomics and reduce the risk of scratching the camera body. In practice, I find the OM1N’s lever slightly more comfortable to use, especially during long shooting sessions.
Viewfinder Information
The viewfinder on the OM1N includes a flash ready/sufficient flash light, which the original OM1 lacks. Both cameras have the same bright viewfinder with a microprism focusing spot, which makes manual focusing a pleasure.
Serial Numbers
OM1N cameras have serial numbers starting with 2,000,000, while original OM1 cameras have lower serial numbers. This can be a useful way to identify which model you’re looking at, especially if other identifying features have been modified or are missing.
Handling and Ergonomics: How They Feel in Use?
Both cameras handle exceptionally well, with the compact size and light weight making them comfortable to use for extended periods. However, there are subtle differences in ergonomics that become apparent when you use both cameras extensively.
Grip and Balance
Both cameras have a similar feel in the hand, with the right side providing a natural grip. The OM1N’s slightly redesigned film advance lever and shutter speed dial make it marginally more comfortable to use, but the difference is minimal.
Control Layout
The control layout is nearly identical on both cameras, with the shutter speed dial on the top plate, the aperture ring on the lens, and the focus ring where you’d expect it. The OM1N’s redesigned shutter speed dial has slightly more resistance, which makes it less likely to be accidentally moved.
Viewfinder Experience
The viewfinder experience is identical on both cameras, with a bright, clear viewfinder that makes composition and focusing a joy. Both cameras have a center-weighted light meter that displays exposure information in the viewfinder using a needle indicator.
Loading and Advancing Film
Loading film is straightforward on both cameras, with the same film chamber design and take-up spool. The OM1N’s redesigned film advance lever feels slightly smoother in operation, but both advance the film reliably and consistently.
Image Quality and Lens Compatibility
When it comes to image quality, there’s virtually no difference between the OM1 and OM1N when using the same lens. Both cameras produce the same excellent results, with the quality of the final image determined more by the lens, film, and photographer’s skill than by the camera body.
Lens Compatibility
Both cameras are fully compatible with the entire range of Olympus OM lenses, from the early Zuiko lenses to later versions. The OM lens system is renowned for its optical quality, with many lenses still highly sought after by film and digital photographers alike.
I’ve used a variety of lenses with both cameras, from the 50mm f/1.8 to the 85mm f/2.0, and all perform exceptionally well on both bodies. The compact size of the OM system lenses complements the small camera bodies perfectly, creating a portable yet capable system.
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Light Meter Performance
Both cameras use a CdS (Cadmium Sulfide) light meter powered by a PX625 battery. The metering system is center-weighted and provides accurate exposures in most situations. I’ve found that both meters are equally reliable, though like all older light meters, they can be less accurate in very low light conditions.
One thing to note is that the original PX625 mercury batteries are no longer available due to environmental concerns. Modern alternatives include the Wein Cell MRB625 zinc-air battery, which provides the correct voltage but has a shorter lifespan, or the PX625A alkaline battery, which has a longer lifespan but a slightly different voltage that can affect meter accuracy.
Maintenance and Reliability: Long-Term Considerations
Both the OM1 and OM1N are known for their reliability and durability, but there are some maintenance considerations to keep in mind when choosing between them.
Common Issues
The most common issue with both cameras is the deterioration of the light seals and mirror bumpers over time. This is a natural process that affects all film cameras of this vintage, but it’s easily fixed with a replacement kit. I’ve replaced the light seals on both my OM1 and OM1N, and the process took about an hour for each camera.
Another potential issue is the slow shutter speeds becoming inaccurate over time. This is more common in cameras that haven’t been used regularly. A CLA (Clean, Lubricate, Adjust) service from a qualified technician can resolve this issue and ensure the camera continues to function properly.
Parts Availability
Parts for both cameras are becoming harder to find as they’re no longer manufactured, but there’s still a healthy market for spare parts and donor cameras. The OM1N, being slightly newer, may have a slight advantage in parts availability, but the difference is minimal.
DIY Maintenance
Both cameras are relatively easy to work on for those with basic mechanical skills. I’ve performed basic maintenance on both my cameras, including replacing light seals and cleaning the viewfinder. There are numerous online resources and tutorials available for those interested in DIY maintenance.
Market Value and Collectibility: Investment and Enjoyment
The market for vintage film cameras has been growing steadily, and both the OM1 and OM1N are sought after by collectors and users alike. However, there are some differences in their market value and collectibility.
Current Market Prices
As of 2025, a good condition OM1 typically sells for $150-250, while a comparable OM1N sells for $200-300. The price difference reflects the OM1N’s newer design and additional features. Prices can vary significantly based on condition, included accessories, and whether the camera has been recently serviced.
Collectibility Factors
Both cameras are collectible, but the original OM1 has a slight edge among collectors due to its historical significance as the camera that started the OM system. Limited edition models, such as the OM1 MD (Motor Drive) or OM1 NASA (used in space missions), command premium prices regardless of condition.
Investment Potential
While it’s unlikely that either camera will appreciate significantly in value, they’re both relatively stable investments. Well-maintained examples with original boxes and documentation tend to hold their value better than user-grade cameras.
User Value
For photographers who actually use their cameras, both the OM1 and OM1N offer excellent value. They’re reliable, capable cameras that produce excellent results when paired with good lenses and film. The joy of using these mechanical marvels is something that can’t be measured in monetary terms.
Who Should Buy Which Camera: Matching the Camera to the Photographer
After shooting extensively with both cameras, I’ve developed clear recommendations for different types of photographers:
The Olympus OM1 is ideal for:
- Collectors interested in the historical significance of the camera that started the OM system
- Photographers who prefer all-metal construction and a more vintage feel
- Those who primarily use manual flash and don’t need the hot shoe improvements
- Budget-conscious buyers looking for a quality mechanical SLR at a lower price point
The Olympus OM1N is ideal for:
- Photographers who frequently use flash and want the convenience of a hot shoe
- Those who appreciate slightly improved ergonomics and control feel
- Users who want the latest version of the OM1 design with all the refinements
- Photographers who plan to use their camera extensively and want the most practical option
My Personal Journey with Both Cameras
I’ve been shooting film for over a decade, and my journey with the OM system began when I inherited my grandfather’s OM1N. At the time, I was primarily shooting digital, but there was something about the feel of that camera that drew me in. The solid build quality, the satisfying click of the shutter, and the deliberate process of shooting film all combined to create an experience that digital photography couldn’t match.
A few years later, I came across an original OM1 at a camera show and was struck by how similar yet different it felt from my OM1N. I bought it on the spot and began using both cameras regularly.
Today, both cameras remain important parts of my photography kit. I tend to reach for the OM1N when I’m shooting events or situations where I might need flash, as the hot shoe makes it more convenient. The OM1 is my go-to for personal work and when I want a more contemplative shooting experience.
One of my favorite memories with these cameras was a two-week trip through the American Southwest last summer. I brought both cameras and a selection of lenses, and they performed flawlessly throughout the trip. The compact size meant I could carry them comfortably all day, and the mechanical reliability meant I never had to worry about battery life or electronic failures.
Pro Tips for Both Cameras
Whether you choose the OM1 or OM1N, here are some tips I’ve learned that will help you get the most out of your camera:
For Olympus OM1 Users:
- Replace the light seals before using the camera – old seals can cause light leaks that ruin your photos.
- Use a modern battery adapter or Wein Cell battery for accurate light meter readings.
- Consider adding a motor drive if you shoot rapidly – it changes the handling but adds versatility.
- Learn to use the depth of field preview button – it’s invaluable for critical focus work.
- Keep a small screwdriver in your camera bag – the OM1’s simple design makes it easy to perform minor adjustments in the field.
For Olympus OM1N Users:
- Take advantage of the hot shoe for modern flash units – it’s much more convenient than the PC terminal.
- The flash ready light in the viewfinder is incredibly useful – learn to trust it for consistent flash exposures.
- The film advance lever’s plastic tip can become brittle with age – handle it gently.
- Consider adding a winder or motor drive for extended shooting sessions.
- The improved shutter speed dial is more resistant to accidental changes – but still check it before critical shots.
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Sample Images: What to Expect
Both cameras produce excellent images when paired with quality lenses and film. Here are my observations based on extensive shooting with both bodies:
Portrait Photography: Both cameras excel at portrait photography when paired with lenses like the 50mm f/1.8 or 85mm f/2.0. The bright viewfinder makes focusing easy, and the mechanical shutter provides a satisfying tactile feedback that’s missing from modern cameras.
Landscape Photography: For landscape work, both cameras perform admirably. The center-weighted light meter handles most scenes well, though I recommend bracketing exposures in high-contrast situations. The compact size makes both cameras ideal for hiking and travel.
Street Photography: The quiet shutter and compact size make both cameras excellent for street photography. I find the OM1N slightly better for quick shooting due to its improved shutter speed dial, but both are capable of capturing decisive moments.
Low-Light Photography: Both cameras perform well in low light when paired with fast lenses. The mechanical shutter can fire at all speeds without battery power, so you can keep shooting even if your light meter battery dies.
FAQ: Olympus OM1 vs OM1N
Which camera is better for beginners?
Both cameras are excellent for beginners due to their simple controls and reliable performance. The OM1N might have a slight edge due to its improved ergonomics and flash capabilities, but the difference is minimal.
Can I use modern batteries in these cameras?
Yes, but you’ll need to consider the voltage differences. The original PX625 mercury battery is 1.35V, while modern alternatives like the PX625A are 1.5V. This slight difference can affect meter accuracy. Wein Cell MRB625 batteries provide the correct 1.35V but have a shorter lifespan.
Are these cameras fully mechanical?
Yes, both cameras are fully mechanical and can operate without batteries. The battery is only required for the light meter. All shutter speeds work mechanically, which means you can keep shooting even if the battery dies.
Which camera holds its value better?
Both cameras hold their value relatively well, but the original OM1 has a slight edge among collectors due to its historical significance. Limited edition models or cameras in exceptional condition with original boxes and documentation tend to appreciate the most.
Can I use digital lenses with these cameras?
No, these cameras use the Olympus OM lens mount, which is not compatible with modern digital lenses. However, there are adapters available that allow you to use OM lenses on modern digital cameras.
How do I identify which model I have?
The easiest way to identify the model is by the serial number. OM1N cameras have serial numbers starting with 2,000,000, while original OM1 cameras have lower serial numbers. You can also look for the flash ready light in the viewfinder, which is only present on the OM1N.
Are these cameras still being serviced?
Yes, there are still technicians who specialize in servicing Olympus OM cameras. However, as these cameras age, finding qualified service technicians becomes more challenging. Many basic maintenance tasks, like replacing light seals, can be done at home with readily available kits.
Conclusion: Making Your Choice
After spending significant time with both the Olympus OM1 and OM1N, I can confidently say that both are exceptional cameras that deliver excellent results. The choice between them comes down to personal preference and specific needs.
If you value historical significance, prefer all-metal construction, and primarily use manual flash, the OM1 is an excellent choice that represents the beginning of the OM system.
If you frequently use flash, appreciate slightly improved ergonomics, and want the most refined version of the OM1 design, the OM1N is worth the additional investment.
Ultimately, both cameras are capable of producing stunning images when used by a knowledgeable photographer. The joy of shooting with these mechanical marvels is something that transcends specifications and features. Whether you choose the OM1 or OM1N, you’re getting a piece of photographic history that’s as enjoyable to use as it is capable.