DPReview: CP+ 2019: Sigma interview – ‘Optical design is always a battle with the design constraints’

https://www.dpreview.com/interviews/7487852065/cp-2019-sigma-interview-optical-design-is-always-a-battle-with-the-design-constraints

Last month at the CP+ show in Yokohama we spoke to executives from several major manufacturers, including Sigma. In our conversation with CEO Kazuto Yamaki we discussed his plans for future L-mount lenses (and cameras) and some of the challenges of supporting multiple mounts.

sigma_105mm_f1.4_dg_hsm_art_l-mount_35mm_1024px
Sigma 105mm f/1.4 DG HSM | Art prime lens with L-mount. A brilliant portrait focal length but no equivalent lens currently exists for Micro Four Thirds or Fujifilm APS-C cameras.

Commentary

I am looking forward to seeing and trying Sigma’s Art collection L-mount prime lenses scheduled for release sometime this year and that are adapted from the company’s current DSLR Art collection offerings.

One major bugbear of new mirrorless launches such as those of Fujifilm APS-C and medium cameras, Panasonic’s Lumix S1 and S1R 35mm cameras, and Panasonic’s Micro Four Thirds cameras is the relative paucity of lenses.

Canon took 30 years to come up with its near-complete DSLR lens collection and it may well take Fujifilm, Olympus and Panasonic almost as long to flesh out the many gaps in their lens collections.

Professional photographers and cinematographers rely on the availability of large lens collections for their cameras in a way that amateurs and enthusiasts tend not to, especially when relying on prime lenses for their optimum optical and mechanical quality.

I would love to see Sigma creating lenses for Fujifilm X-mount APS-C cameras given there are so many glaring holes in Fujifilm’s lens lineup, and the same desire applies to professional-quality lenses for use on Blackmagic Design, Olympus and Panasonic M43 cameras.

Panasonic and its L-Mount Alliance partners Leica and Sigma have done well to aim at releasing enough lenses to satisfy those contemplating investing in the L-mount camera system, and it is pleasing to read that Sigma will be working on smaller and more affordable L-mount lenses in due course.

Meanwhile those of use needing focal lengths that Fujifilm does not offer for its X-mount and G-mount cameras may need to bite the bullet and rely on adapted EF-mount lenses instead of the much-preferred native X-mount and G-mount alternatives that simply do not exist yet.

I am still hoping for a professional-quality alternative to Fujifilm’s too-quirky, too-slow Fujinon XF 18mm f/2.0 R prime lens with its 35mm sensor equivalent focal length of 28mm, a staple optic for many documentary photographers and photojournalists, me included.

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