Wednesday, October 8, 2014

Wollensak 75mm f4.5 Enlarging Raptar - Sample Pictures

I feel like a little kid in a candy store lately, because I have gotten quite a few lenses from the camera show and the antique market to play with.  Today I went out and shot with the Wollensak 75mm f4.5 Enlarging Raptar lens.  This is a very small lens but like all Wollensak lenses, it's extremely well built. The lens has a 30mm thread size on the rear and I mounted a 30mm to 52mm step up ring, along with about 5 52mm filter rings on the Yeenon 18-33mm focus helicoid, it just attains infinity and yet provides a relatively close focus capability. So, close up is still possible to show off its pretty nice bokeh.  The near circular aperture should provide nice bokeh even when stopped down.

I expected the lens to be sharp, and it is, but the edges do not compare to something like a Schneider-Kreuznach Componen-s 80mm f4, or a Rodenstock equivalent. At about f11, the edges are very good, and wide open the centre and most of the frame is very sharp.  For $5, I think it's an excellent value. I certainly am not complaining :)

Bokeh - Wollensak 75mm f4.5 Enlarging Raptar & Sony A7. Click for larger.

Rope - Wollensak 75mm f4.5 Enlarging Raptar & Sony A7. Click for larger.

More rope - Wollensak 75mm f4.5 Enlarging Raptar & Sony A7. Click for larger.

Rust - Wollensak 75mm f4.5 Enlarging Raptar & Sony A7. Click for larger.

Toronto Downtown - Wollensak 75mm f4.5 Enlarging Raptar & Sony A7. Click for larger.

Posted by at
Labels: ,

4 comments:

  1. Mester HargiOctober 12, 2014 at 11:20 AM

    How do you get the lens to focus on infinity?
    It does not matter how many tubes I put on, I can not go to infinity.

    Love the blog and the pictures.
    KR

    ReplyDelete
    Replies
    1. Lens BubbleOctober 12, 2014 at 5:36 PM

      How did you mount your lens, on a focusing helicoid?

      Delete
  2. Mester HargiOctober 13, 2014 at 1:41 PM

    On tubes - but will they not give the same effect as a helicoid?
    More inflexible of course.
    My lens is a Minolta C.E 80mm 5.6.
    KR

    ReplyDelete
    Replies
    1. Lens BubbleOctober 13, 2014 at 4:36 PM

      It would be difficult to check infinity focus if you are only using tubes, since you can't focus easily. in any case, for my 75mm Wollensak 75mm lens, the spacing between the sensor and the rear of the lens is about 7cm. It should be about the same or slightly longer for your 80mm enlarging lens. But, this all depends on how the lens was designed. Some have very short lens to sensor flange. You will have to start with shorter tubes and then increase the length little bit at a time to get the right spacing. Good luck.

      Delete

Subscribe to: Post Comments (Atom)