What makes a good lens?

I was thinking today about what makes a good lens? Well, I don’t believe there is a straight answer to that question. I know some photographers think in terms of resolution, sharpness and charts. But I don’t want to take images where everything is sharp, that would be boring to me eventhough I can respect others who do that sort of thing. I don’t believe art can be measured in charts.

My point is what you look for in a lens is subjective, but here is what I like:

  • Bokeh
    I started of as a painter (and still look upon myself as one eventhough it has been ages since I painted anything). I want soft transitions, a painty feeling. Bokeh is very important to me in a lens. I often try to use the contrast between soft and sharp.
    Butterbokeh of tha Auto-Takumar 85mm/1.8

    Butterbokeh of tha Auto-Takumar 85mm/1.8

  • Build quality
    My theory is if I like the feeling of the lens, holding it and looking trough it, I will take better pictures becuase I can feel comfortable with the tool. I like the feeling of the lenses I keep, if I don’t like the feel I usually sell it.
    Yashica MC Zoom 35-70mm 3.5-4.5

    Yashica MC Zoom 35-70mm 3.5-4.5

  • Speed
    A faster f-stop make the viewfinder brighter. This is important if you use manual lenses like I do, brighter viewfinder means easier to focus. But sometimes there can be other reasons – some of my f3.5 lenses give a clearer, brighter viewfinder then others.
    Yashica ML 50mm/1.4

    Yashica ML 50mm/1.4

  • Colours
    Contrasty, saturated? Actually I can see the use of most qualities here for different occasions, but I tend to like saturated colours or black and white photographs with good contrast.
    Colours of the S-M-C Takumar 55mm/1.8

    Colours of the S-M-C Takumar 55mm/1.8

  • Sharpness
    Ok. Sometimes I want to make a sharp image to, or at least a part of it.
    Waterline with Yashica Zoom

    Waterline with Yashica Zoom

  • Peculiarity
    Some lenses you just got to love. Like the Industar 50-2, small baby pancake and silly looking. Russian-improved tessar ;) That lens has personality.
    Or the Yashinon-DX 50mm/1.7 with it’s silver frontrim, it’s buttery bokeh and sharp details. Made by Tomioka.
    I guess the header for this paragraph could also be “personality”.
    Industar 50-2 on Zenit ET

    Industar 50-2 on Zenit ET

5 Responses in “What makes a good lens?”

  1. Brian Auer says:

    My most important factors are build quality, maximum aperture, sharpness, and contrast… so basically most of the stuff in your list! I totally agree that all of these things are important in choosing a lens. Bokeh can be subjective, but I usually don’t fret over it (even when I get big ‘ol pentagons in my photos!).

  2. Mattias says:

    Hi Brian! Well built lenses can be so fun to use :) About good build, you should check out the Industar, silly little lens but check these pictures out on MfLenses. It is just insane what that little thing can do…

  3. Kaybee says:

    This, I will make a list to buy lenses. Very helpful and what I look for in lenses. I am all new to photography though I have been an enthusiast since little. Thanks!

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