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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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ARRI / Spherical Prime

ARRI Signature Prime

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Bausch & Lomb / Spherical Prime

Bausch & Lomb Super Baltar, TLS Rehoused

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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.

ARRI Signature Prime and Bausch & Lomb Super Baltar, TLS Rehoused: specifications and editorial notes
Specification	ARRI Signature Prime	Bausch & Lomb Super Baltar, TLS Rehoused
Overview	Large-format LPL primes with a broad focal range. ARRI describes their rendering as warm on skin, with soft bokeh and delicate flares.	Rehoused vintage primes described by Old Fast Glass as warm, lower in contrast and softer at the edges. The documented TLS set uses matched 110mm fronts.
Lens type	Spherical Prime	Spherical Prime
Focal range	12mm-280mm	20–152mm in the referenced set
Max. aperture	T1.8-T2.8	T2.3 core; varies by focal length
Coverage	Super 35 / Full Frame ARRI specifies coverage up to a 46mm image circle. The 200mm is T2.5 and the 280mm is T2.8; other bare primes are T1.8. Check the chosen sensor mode.	Super 35 Super 35. Longer focal lengths may cover Full Frame; check the individual lens and sensor mode.
Mounts	LPL	PL
Image circle	46 mm	Not established
Introduced	2018	Not established
Use cases	Large-format narrative features Premium commercial work Controlled focus-pulling environments	Vintage portraiture with softer edges Character-led Super 35 narrative work
Tradeoffs to test	Heavier than classic S35 prime sets Less innate texture than vintage families	Full-frame coverage is focal-length dependent. Specifications and condition belong to the particular rehoused set.
Sources	ARRI (opens in a new tab) ARRI (opens in a new tab) ARRI (opens in a new tab)	Old Fast Glass (opens in a new tab)
GLM sourcing	Ask 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.

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