Model 360B
Telephoto Lens
SP Symbol300mmF/2.8 LD-IF
Fast-Aperture Telephoto Lens
Tamron SP Adaptall-2 300mm F/2.8 LD-IF Model 360B Lens

Tamron SP 300mm F/2.8 LD-IF Model 360B: This lens, compared to the earlier model 60B, features a very slightly revised optical design and adds a floating element system to the internal focusing system. The overall optical layout, including the two low dispersion (LD) elements (shown in green in the above optical layout) and the spherical aberration compensator group, is nearly identical to the earlier model 60B. This cosmetically redesigned model 360B features a new lens hood which attaches via two screws instead of the bayonet-on lens hood found on the earler model. Thanks to the new floating element internal focusing system, optical performance is slightly improved over the earlier model, particularly off-axis and at closer focusing distances. Overall optical performance is "best in class" when compared to other similarly priced 300mm F/2.8 lenses.

Lens Specifications:

Lens Model 360B
Focal Length 300mm
Aperture Range f/2.8 — 32, AE
Angle of View
Optical Construction
(Groups / Elements)
7 / 10
Min. Focus from Film Plane 98.4" (2.5m)
Macro Mag. Ratio
Filter Size 43mm (rear), 112mm (front)
Diameter 4.6" (117.5mm)
Length at
[w/Nikon mount]
8.2" (208mm)
[8.4" (212.5mm)]
Weight 80.0 oz. (2269g)
Lens Hood Bayonet type #B3FH, reversible.
Accessory Accepts SP 2X tele-converter #01F. Supplied wth lens hood. Additional 43mm rear filters and 112mm front filter available as optional extras.
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