RARE ! TAMRON SP 35-80MM F/2,8-3,8 ADAPTALL 2 CONTAX/YASHICA À STRASBOURG

TAMRON SP 35-80MM f/2,8-3,8 ADAPTALL 2 CONTAX/YASHICA Good condition - zoom is little hard to move but it works. KIT WITH ORIGINAL REAR CAP AND 62MM FILTER SKYLIGHT 1B !!! Focal Length: 35 - 80mmAperture Range: f/2.8~3.8 - 32, AEIris: 8 bladesOptical Construction: 8 Groups / 9 ElementsMin. Focus from Film/Sensor Plane: 10.6"/27cm at f=80mmMacro Mag. Ratio: 1:2.5 at f=80mmFilter Size: 62mmDiameter: 2.5" /64.5mmLength: 2.8" /72mmWeight: 13.6 oz. /386g Tamron's SP 35-80 F/2.8-3.8 zoom lens is, without question, the best zoom lens ever manufactured within its class and price point. The sharpness and contrast of this lens is extraordinary compared to similar after market lenses and many OEM lenses. Only the similar Nikkor performs better, but not by very much. Macro performance across the central two thirds of the film plane stands up very well against dedicated macro lenses. Amazingly, this lens yields very good macro performance across the entire film plane when used with Tamron's SP 2X tele-converter. There is no push button or macro ring which must be turned to enter the macro mode. The user merely has to continuously turn the focus ring in order to focus from infinity to the minimum focus distance for macro work. Tamron calls this feature "continuous focusing" or CF. While turning the focus ring, the zoom ring will automatically turn as necessary until the zoom ring is at the 80mm zoom setting.." adaptall-2.com. This SP designated 2 ring mid range zoom was made from 1979 to 1985. It continued production even though the 28-80mm SP 27A was launched in 1983. It can be said that this lens played a big part in the reputation of the adaptalls. It has a strong macro mode (for a zoom) to 1:2.5 magnification ratio, an innovative design facilitates this, the focal length automatically changing as the lens is focussed into macro. However well used examples can have mechanical issues such as looseness/play of the focus section. Tightening a slotted locking ring that holds the focus section can help/fix.