Tamron SP 300mm F/5.6 MC Tele Macro 54B

Specifications01

MountTAMRON ADAPTALL

Focal length300mm

Max aperturef/5.6

TypeMacro · Telephoto · Prime

Release year1979

Weight610 g

Min focus distance1.4 m

Max magnification0.303

Aperture blades8

Optical elements6

Groups5

AutofocusNo

StabilizationNo

Aperture controlAperture ring (Manual settings + Auto Exposure setting with 52CB Minolta MD 53C Konica AR 56C Fujica AX 61C Ricoh XRP 63C Pentax KA adapters)

Lens hoodBuilt-in telescopic round

TeleconvertersTamron SP 1.4X Teleconverter 140F → 420mm F/7.8

Production statusDiscontinued

Additional Info02

Lens TypeMacro lens

Field Notes02

Tamron ADAPTALL SP 300mm f/5.6 MC tele-macro lens for close-up work with telephoto reach; fixed 300mm focal length aimed at macro/tele detail rather than general wide coverage.

AI-assisted summary — verify against linked sources

Catalog note · source: thelensdb

Sources03

thelensdb.comVisit ↗

Other Mounts03

No alternate mounts are indexed for this family yet.