I agree, and my Tokina 90mm 2.5 edges out my 50mm 1.8 zuiko to the point
where you can see each pore on someone's face, though they're both quite
sharp. My Zuiko 28mm f2.8 also produces very sharp images. Certain focal
lengths may give you a problem focusing?
Larry
John Robison wrote:
> --- Olympus <olympus@xxxxxxxxxxx> wrote:
> > I got a roll back, and I compared the shots. I have
> > a Tokina 90mm/2.5 and I
> > compare the graininess to my Zuiko 50/1.8, and it's
> > not comparable. The
> > Zuiko is about twice as sharp. >
> > Albert
> Greetings Albert, I think there is something going
> on that is affecting your results. If both the Tokina
> and Zuiko are in good condition and used under the
> same circumstances with the same type of film, and
> care was taken to ensure the camera was steady and the
> exposure was correct, then the results should be close
> with both lenses. Here are some questions to consider;
> 1. Exposure. Read a blank, evenly illuminated surface
> with each lens, compensating for angle of view by
> distance from surface. Are both readings the same? If
> not, the meter pin on the back of the two lenses are
> in two slightly different positions when lens is
> mounted.
> 2. Camera steady. The OM-1 must be held with the hands
> when used with a tripod to prevent mirror and
> stop-down shake.
> 3. Subject and lighting. This really affects our
> perception of print or slide sharpness. A brightly
> lit, high contrast subject will appear sharper than a
> dim, low contrast subject. There are many factors that
> affect how we perceive sharpness, as final test, lend
> your Tokina to a trusted friend for a few weeks and
> then look at his work, this may reveal the lens' true
> potential.
>
> Just a few thoughts.
>
> John Robison
>
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