Why a zoom on medium format?
Medium format photographers often rely on prime lenses, but a zoom like the Mamiya-Sekor 55-110mm f/4.5 gives you flexibility without changing lenses. This range covers wide to short telephoto perspectives, useful for portraits, landscapes, and general walkaround shooting on a Mamiya 645 camera.
The 55-110mm is a constant f/4.5 aperture zoom, which means your exposure settings stay consistent throughout the zoom range. That simplifies handheld shooting and makes it easier to work in changing light.
What the used listing confirms
- USED Mamiya-Sekor 55-110mm f/4.5 (#20530CM): The lens is in excellent condition, tested and fully functional, with clean, clear glass free from scratches, haze, and fungus. For a used lens, the glass condition is the most critical factor. This listing confirms no haze or fungus, which directly affects image clarity.
USED Mamiya-Sekor 55-110mm f/4.5 (#20530CM) - USED Mamiya-Sekor 55-110mm f/4.5 (#20530CM): Focus and zoom rings are smooth. Smooth operation is essential for precise focusing and framing, especially when shooting film where you can't review immediately.
- USED Mamiya-Sekor 55-110mm f/4.5 (#20530CM): The lens comes with front and rear lens caps. Caps protect the glass during storage and transport, so you won't need to buy them separately.
What to check before you buy
Even with a positive condition report, it's wise to verify a few things when buying a used medium format zoom.
- Compatibility: Confirm this lens mounts on your specific Mamiya 645 body. The listing identifies it as a Mamiya-Sekor 55-110mm f/4.5, but double-check your camera model's compatibility.
- Aperture operation: If possible, test the aperture blades to ensure they open and close smoothly and evenly. The listing doesn't mention aperture function, so it's worth checking.
- Shipping details: The listing notes that items ship within one business day of cleared payment and can only be sent to the eBay address on file. Make sure your address is correct before purchase.
How this zoom fits your film workflow
A zoom lens is valuable when you're working quickly, such as on a wedding shoot or a documentary assignment. The 55-110mm range lets you adjust composition without moving your feet, which is handy when you're limited by location or time.
Because it's a constant f/4.5, you can use a single exposure setting across the zoom range. That's a real advantage when you're shooting handheld and want to keep your shutter speed high enough to avoid camera shake.
On the other hand, f/4.5 is not the fastest aperture. If you frequently shoot in low light or want shallow depth of field, a fast prime like the 110mm f/2.8 might be a better choice. But for a general-purpose zoom, the 55-110mm offers a practical balance.
Zoom vs. prime: which is right for you?
Deciding between this zoom and a set of primes depends on your priorities.
- Flexibility: The 55-110mm zoom covers multiple focal lengths, so you can leave a couple of primes at home. That's a big advantage when traveling or shooting events.
- Aperture speed: A zoom with f/4.5 is slower than many primes. If you need to shoot in low light without flash, a prime lens with a wider aperture will be more useful.
- Image quality: Primes often have a reputation for sharper images, but the Mamiya-Sekor zoom is designed for medium format and can deliver excellent results. The condition of the specific lens matters more than the theoretical design.
The honest trade-off
The Mamiya-Sekor 55-110mm f/4.5 is a practical choice for photographers who want a single lens that can handle a variety of subjects. The used listing confirms it's in excellent condition with smooth focus and zoom, which gives you confidence in the mechanics.
However, the listing doesn't provide details on aperture function or specific optical performance. If you're buying online, consider asking the seller for more photos or information about these aspects. And remember, shipping is only to the eBay address on file, so make sure your details are correct.
If you're looking for a versatile medium format zoom and this lens fits your Mamiya 645 body, it's a solid option. Just weigh the f/4.5 aperture against your typical shooting conditions.
