Nikon Nikkor T ED 270mm f/6.3

Nikon Nikkor-T-ED 270mm f/6.3 is the ED-glass telephoto LF lens at 270mm — Nikon's signature ED (Extra-low Dispersion) glass reduces chromatic aberration in long telephoto designs. The shortest T-ED Nikkor.

Key features

• Mount: Copal 1 shutter (1s to 1/400, X-sync at all speeds)
• Focal length: 270mm (effective; physical lens length much shorter)
• Maximum aperture: f/6.3
• Image circle: ~210mm at f/22 — covers 4×5 with movements
• Optical formula: ED-glass telephoto (asymmetric)
• Multi-coating standard

Use case + rendering

The 270 T-ED is the portable LF long-tele for 4×5 + 5×7 — the telephoto formula keeps the lens compact while ED glass reduces fringing typical of older telephoto designs. Sharp at moderate apertures.

The Nikkor-T-ED series is widely regarded as among the best LF telephotos available — Nikon's reputation for high-quality long glass extends into the LF lineup.

Compatible cameras

• Toyo 45A / Toyo 45AII / Toyo 45G
• Cambo SC / Cambo Calumet 45NX
• Graflex Speed Graphic / Graflex Super Graphic

Related lenses

• Nikon Nikkor-T-ED 360mm f/8 — longer T-ED sibling
• Schneider Tele-Arton 250mm f/5.6 — Schneider tele alternative