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Black cinema lens barrel with drop-in filter slot and E mount, 85mm T1.9

Nisi

Nisi Athena Prime 85mm T1.9 Full-Frame Cinema Lens E Mount Drop-In Filter

SKU CH-MEHR-HEPA2

Full-frame 85mm cinema lens with T1.9 aperture, 46mm imaging circle and drop-in filter mount for E-mount cameras

  • Product typeAccessory
  • T1.9 aperture enables shallow depth of field for cinematic subject isolation
  • 46mm imaging circle covers full-frame sensors with edge-to-edge clarity
  • Drop-in filter mount allows quick ND or polariser changes without front threading
  • Minimised focus breathing keeps framing consistent during rack-focus pulls
  • Ultra-low chromatic aberration and high micro-contrast deliver fine detail across the frame

85mm T1.9 Full-Frame Cinema Lens

The NiSi Athena Prime is an 85mm full-frame cinema lens with a T1.9 aperture and E mount. It covers a 46mm imaging circle and delivers maximum micro-contrast control with ultra-low chromatic aberration. A drop-in filter mount allows quick insertion of ND or polarising filters without front-thread accessories. Focus breathing is minimised for consistent framing during focus pulls.

Filmmakers needing fast portrait focal length

This lens suits cinematographers who want a fast 85mm prime with native E mount and internal filter workflow. The T1.9 aperture provides shallow depth of field and low-light capability. Shooters requiring zoom versatility, wider focal lengths, or autofocus for run-and-gun work should consider other options. The manual focus design demands practiced technique.

Drop-in filter mount eases workflow

Installation is a simple E-mount attachment with no adapter needed. The drop-in filter tray slides into the lens barrel, eliminating front-thread vignette risk on wide-angle shots. Common issues include forgetting to seat the filter tray fully, which can cause light leaks, and underestimating the focus rotation required for precise manual pulls.

How it compares

Measured against everything we stock in Camera Extras & Accessory Packs, at today’s prices. Recalculated every night.

Price $928.99
Pricier than about 90% of the 2,266 comparable items (median $39.99).

Specifications

Product
Product typeAccessory

Questions about this item

What camera mount does the 85mm Athena Prime T1.9 require to function?

The lens uses an E mount so it attaches directly to Sony E mount cinema or mirrorless bodies without an adapter.

Can the drop-in filter system on this 85mm T1.9 lens be used with older front-thread filters I already own?

No, the drop-in tray accepts only the dedicated drop-in filters; existing screw-in filters cannot be mounted on this lens.

How can I verify the 46mm imaging circle covers my full-frame sensor after mounting the lens?

Record test footage at T1.9 and check the corners for vignetting; even illumination across the frame confirms full coverage.

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