Question 1

What does the 'Blue Ring' mean on a Phase One Schneider lens?

Accepted Answer

The Blue Ring designation identifies the second-generation Schneider Kreuznach lenses made specifically for Phase One systems. Blue Ring lenses are built to higher tolerances than older Mamiya-era glass and include features like improved anti-flare coatings, internal focus mechanisms, and integrated lens hoods. They're optimized to perform on modern high-resolution Phase One digital backs, where any optical weakness would show up immediately.

Question 2

Is the Phase One Schneider 110mm f/2.8 Blue Ring good for portraits?

Accepted Answer

It's arguably the most natural portrait focal length in the Phase One / Mamiya 645 lineup. At 110mm you get enough working distance to avoid distorting facial features, and f/2.8 on medium format produces a shallower depth of field than the same aperture on a full-frame camera — so subject separation is genuinely strong even at full-body distance. Beauty and fashion photographers specifically mention it as the go-to for both close headshots and full-length editorial work.

Question 3

Does the Phase One 110mm f/2.8 Blue Ring have autofocus?

Accepted Answer

Yes, the lens supports autofocus alongside manual focus override. The HoneyBee autofocus platform is integrated, making it fast and reliable enough for on-location fashion shoots and editorial work where subjects are moving. Internal focus means the lens doesn't extend during focusing, which keeps the handling compact and predictable.

Question 4

What cameras is the Schneider 110mm f/2.8 Blue Ring compatible with?

Accepted Answer

This lens uses the Phase One / Mamiya 645 mount, so it fits Phase One XF camera bodies and other bodies in the Phase One / Mamiya 645 ecosystem. It's optimized for use with Phase One digital backs. Blue Ring lenses work perfectly on newer Silver Ring and Blue Ring-generation bodies; performance may vary on older Mamiya-era bodies depending on the specific mount interface.

Question 5

How does the Phase One 110mm compare to the Phase One 150mm f/2.8?

Accepted Answer

Both are f/2.8 medium format telephoto primes, but the 110mm gives you more versatility — tighter spaces, easier indoor studio work, and a slightly wider field of view that suits full-length subjects better. The Phase One 150mm f/2.8 LS pushes compression further, making it the preferred choice when you want more background compression or are shooting from a fixed position with more distance to your subject. The 110mm is generally the more practical all-rounder between the two.

Question 6

Can I shoot into backlit or bright sun with the Blue Ring 110mm?

Accepted Answer

Yes — the anti-flare optical design is a specific strength of the Blue Ring series. The coating handles direct sun and strong rim lighting better than older Mamiya-era glass, which makes it practical for outdoor fashion and on-location editorial where controlling light isn't always possible. The integrated lens hood adds an additional layer of flare control without needing a separate accessory.

Question 7

Is buying a used Phase One Schneider 110mm f/2.8 Blue Ring worth it?

Accepted Answer

Phase One Blue Ring lenses are built to professional studio standards, meaning they're designed for heavy daily use and hold up well over time. A used example that has been properly inspected should perform identically to a new one optically. On Camera-tweedehands.nl every second-hand lens is individually photographed so you can see the actual condition, and all come with a minimum 12 months warranty — making it a straightforward way to access top-tier medium format glass.

Question 8

What other Phase One Blue Ring lenses are available in the same system?

Accepted Answer

The Schneider Kreuznach Blue Ring family for the Phase One / Mamiya 645 mount includes a range of focal lengths. Commonly discussed siblings include the Phase One 35mm Blue Ring wide-angle, the Phase One 45mm Blue Ring, the Phase One 80mm LS Blue Ring, the Phase One 120mm Macro, and the Phase One 240mm telephoto. Each covers a different shooting discipline, from landscape wide-angles to close-up macro work, all sharing the same mount and Blue Ring optical standards.

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Phase One Schneider 110mm f/2.8 (Blue Ring)

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