Skip to main content

Lens Explorer / Compare

Compare lenses.

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

Choose two different families. Your current shortlist is kept when you return to the catalog.

IronGlass / Spherical Prime

IronGlass Soviet MKII

Full profile

Angenieux / Spherical Prime

Angénieux Optimo Prime

Full profile

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.

IronGlass Soviet MKII and Angénieux Optimo Prime: specifications and editorial notes
SpecificationIronGlass Soviet MKIIAngénieux Optimo Prime
OverviewRehoused Soviet optics that include the Helios 44-2 58mm. IronGlass preserves distinct donor-lens rendering while adding cine housings and matched 95mm fronts.Large-format primes with a 46.3mm image circle and Angénieux IOP accessories for changing internal filters and iris behavior.
Lens typeSpherical PrimeSpherical Prime
Focal range20–135mm in the six-lens reference set18–200mm
Max. apertureT2.1–T3.6 in the reference setT1.8 core; 18mm T2.0 / 200mm T2.2
Coverage

Super 35 / Full Frame

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

Super 35 / Full Frame

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

MountsPLPL / LPL
Image circleNot established46.3 mm
Use cases
  • Character-led vintage lens packages
  • Close portraiture with Helios or Jupiter rendering
  • Full-frame narrative prime packages
  • Controlled lens-look customization
Tradeoffs to test
  • Aperture and rendering differ among the donor lenses.
  • Custom MKII options extend beyond the six-lens reference package.
  • IOP changes need preparation and matching tests.
  • The 200mm changes front diameter to 114mm and opens to T2.2.
Sources
GLM sourcingAsk GLM about sourcing

GLM can use this profile as a starting point for lens strategy, sourcing, or adjacent package recommendations.

Ask GLM about sourcing

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.

Bring the shortlist.
Tell us about the shoot.

Ask GLM about this pair
Back to catalog