Got this camera?
Sell it with us.
Free appraisal in 24 h, payment in 48 h and free shipping. We inspect it, refurbish it and give it a second life.
Phase One Auto Extension Ring No. 1
Got this camera?
Sell it with us.
Free appraisal in 24 h, payment in 48 h and free shipping. We inspect it, refurbish it and give it a second life.
Inspected at 28 points by our technicians. Every unit is unique. More details
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CAMERAMARKET10
Protect your purchase for longer.
Your camera ships with 6 months of coverage included. Extend it if you want professional photographer peace of mind.
Units sold for parts do not qualify for extended warranty.
View warranty terms and conditionsThe Phase One Auto Extension Ring No. 1 is an automatic extension ring designed for medium format systems, compatible with Phase One and Mamiya 645 AF mounts. This accessory reduces the lens's minimum focusing distance, enabling close-up and macro photography without the need for specialized optics. Precision-machined, it maintains electronic communication between the camera body and lens for aperture control and autofocus.
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Key Features
- Automatic extension ring for Phase One and Mamiya 645 AF medium format systems.
- Precision-machined construction for an accurate and durable fit.
- Maintains electronic connection between body and lens, allowing aperture control and AF.
- Designed for close-up and macro photography, reducing the minimum focusing distance.
- Compatible with Phase One and Mamiya 645 AF lenses with NA mount.
Ideal for
Medium format photographers looking to explore macro photography without investing in a dedicated lens, as well as professionals needing versatility in detail, product, or nature shots.
Condition
Second-hand product inspected by Camera Market. Includes standard 6-month warranty and 24-48h shipping from Barcelona.
What condition is this item in?
Every item that leaves Camera Market goes through a <strong class="text-ink-strong">full functional and condition check</strong> before going on sale. We verify it performs correctly and document its real condition in the actual photos and the product details.
The specific cosmetic condition (marks, scratches, signs of use) is documented in the actual photographs and in the technical table on the product page. We do not use catalogue images.
What is included in the purchase?
You receive Phase One Auto Extension Ring No. 1 tested and ready to use, with the <strong class="text-ink-strong">check</strong> and the <strong class="text-ink-strong">6-month warranty</strong> included. As a pre-owned product, <strong class="text-ink-strong">it does not include the original box or packaging</strong> and the accessories <strong class="text-ink-strong">vary from unit to unit</strong>.
Want to know exactly what accessories this particular unit comes with? Message us on the website chat and we'll confirm before you buy.
What warranty does it have?
All our products include 6 months of free warranty covering functional defects and technical faults.
You can extend the coverage from the warranty section on this same page:
- 12 months for $18.90 · single payment
- 24 months for $31.41 · single payment · recommended
We also offer 14-day returns with no questions asked. If you are not satisfied, full refund.
How long does shipping take?
Standard shipping to the EU in 4–5 business days with tracking number. For mainland Spain, express 24–48 h option available at checkout.
Technical packaging with custom-cut foam and tamper-evident seals. Transit insurance included.
Why buy refurbished?
For three honest reasons: price (between 20 and 40% below new on high-end models), sustainability (keeping a body in circulation avoids manufacturing a new one and all its waste), and transparency: every unit has its own serial number, visible shutter count and inspection date.
Market depreciation does not affect optical or electronic performance. A well-kept, inspected item performs exactly like a new one.
