Sears 135/3.5 Zebra, Interesting Looking Lens...

[kenetik]

Today was a good day for buying second hand goods from one of the few remaining local Camera Shops. The most interesting looking lens I picked up is this Sears 135mm 3.5 which is the subject of this post. It is a screwmount lens that had a Nikon adapter on it already. It is a preset and has somewhere in the neighborhood of 20 aperture blades.

Here are some pics of the lens, followed by samples and comments. If anyone could tell me by whom/when this lens was most likely made, I would be fascinated to know.













#1 - stopped down



#2 - 100% crop from image above



#3 - This is an unprocessed OOC jpeg



#4 - Another unprocessed OOC jpeg




#5 Wide open bokeh is tremendously busy




#6 Wide open images are glowy



#7 Still, resolves nicely for an old lens when stopped down



#8 Even at a distance good detail is captured, as shown in the pic below followed by 100% crop





Thanks for looking, Ken

[bmwtraveler]

maybe early 60s t mount,Kyoei,Komura maybe, in front of len number the letter looks like a Sigma emblem but I don't think Sigma was making lens back then

[kenetik]

[Oldhand]

Looks good whatever it is.
OH

[Nordentro]

Perhaps Sankor made?

First time I see this type.

[casualcollector]

I got this lens and its 35mm f-3.5 brother with a first generation Sears SL11 several years ago. Mine is T mount with Nikon adapter. My hunch is Sigma. 1965 vintage, give or take a year.

[luisalegria]

Ditto, though I am only guessing, it is a very early Sigma.
Its not similar to known Sankyo or Komura lenses of the time.

[kenetik]

BMW was right in that it does look like the Sigma logo. I didn't realize this lens had a shorter friend of the same vintage, thanks for sharing Casual Collector. They certainly have an interesting style.