Period of use: 2 yearsStrengths:
If you ask about how sharp it is, then is sharp to very sharp f4 and upper.
It is nice for lanscape at f8/f11... Not if you use bokeh as dominant part of your composition nearly wide open.
If you try to do portraits whit this lens, i sugest use a very soft background, this lens have very nervous bokeh. Sometimes (few times) you get a nice portrait after f4
It is a very ligthweigth and small lens.
Very cheap, I bought it just for 4 dollars at that time.
Well, the main reason to buy 135mm lens is to take portraits:
In this category, this lens is horrible.
Soft wide open.
The Bokeh is "so so" wide open, but at f4 and upper is horrible to my taste.
The caracter of this lens is not useful at all.
I remember cooler color, not ideal for skin tones.
To be a old an all metal lens, it is not on par with 3dr party lenses like Hoya, Vivitar, just to name few.
This pictures were taken with Nikon D300 many years ago (2011).
I did some test the first time with this lens (Girl/Color), as you can see...the bokeh looks horrible.
The Nikkor AF-d 80-200 f2.8 pull MK2 did a much better job :P
As you can see, the B&W photo looks "great" and the character of the lens is not a problem with this kind of Subject/pictures.
After several use, the barrel get stuck, the grese of helicoid were dry (probably common whit old lenses), the helicoid is made of aluminum, I trayed two time to put in place after lub, but thread get in bad shape and died.
This lens is easy to disassamble, but is quite sensible to damage.
Well, depend on you. This cost me almost free, so... yes, it is fun to try old lenses.
Then, if you want a fine and nice optics and you don´t wanna lose time, this is not for you.
If you want a great optics, look at Nikkors Ai/Ais, 135mm f2.8 or even better and legendary 105mm f2.5 ;)
Is a 2 points optic of 5 posible points