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Compare specifications and GLM's editorial notes. Check the source documentation for the exact lens version, then send both families with your project details.

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Angenieux / Spherical Prime

Angénieux Optimo Prime

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IronGlass / Spherical Prime

IronGlass Soviet MKII

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Original illustrations of representative lenses, with simplified details and no shared scale. The overview, use cases and tradeoffs are editorial selection guidance. Test the exact lenses on your camera before committing to a package.

Angénieux Optimo Prime and IronGlass Soviet MKII: specifications and editorial notes
SpecificationAngénieux Optimo PrimeIronGlass Soviet MKII
OverviewLarge-format primes with a 46.3mm image circle and Angénieux IOP accessories for changing internal filters and iris behavior.Rehoused Soviet optics that include the Helios 44-2 58mm. IronGlass preserves distinct donor-lens rendering while adding cine housings and matched 95mm fronts.
Lens typeSpherical PrimeSpherical Prime
Focal range18–200mm20–135mm in the six-lens reference set
Max. apertureT1.8 core; 18mm T2.0 / 200mm T2.2T2.1–T3.6 in the reference set
Coverage

Super 35 / Full Frame

Large Format / Full Frame; 46.3mm image circle. Confirm coverage for the intended sensor mode.

Super 35 / Full Frame

Full Frame in the six-lens reference set. Larger coverage varies by donor lens and sensor mode.

MountsPL / LPLPL
Image circle46.3 mmNot established
Use cases
  • Full-frame narrative prime packages
  • Controlled lens-look customization
  • Character-led vintage lens packages
  • Close portraiture with Helios or Jupiter rendering
Tradeoffs to test
  • IOP changes need preparation and matching tests.
  • The 200mm changes front diameter to 114mm and opens to T2.2.
  • Aperture and rendering differ among the donor lenses.
  • Custom MKII options extend beyond the six-lens reference package.
Sources
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GLM can use this profile as a starting point for lens strategy, sourcing, or adjacent package recommendations.

Coverage can change with focal length, rear optics and sensor mode. Inventory links describe the mapped GLM package; confirm the exact set, price and shoot dates with GLM.

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