Last week I took one of my vintage lenses out again. The Sun Wide Zoom 24 -40mm f3.5 was the lucky one. Did not tried it out before. This lens is bit of a legend, because it is considered the first succesfull wide zoom lens. Made by sun optics , not known for its quality lenses but they made optics for many other brands.
This lens was also sold under the Tokina brand. It is a big heavy lens, it has a filtertread of 72mm and is around 480gr heavy. Also it has a very usefull macro future, in fact it is more a closeup but with good results. Build, in the seventies and early eighties , as a tank. Wide open it is not sharp but stopped down to 5.6 and beyond it is more than pretty sharp and can keep its own with some modern lenses.
If you should come across one for a good price, I bought mine for about 35Euro. And you are into vintage, Buy it.
So lets see how it performed on my Fuji XT10
The next photos are taken in the macro mode of this lens