For lens, I think the MTF at low frequency will indicate the sharpness more,
the MTF at high frequency indicates the resolving power more. For film, the
sharpness depends on the grain structure, some high speed film may have
better appearance sharpness due to the grain.
For fashion shoots, I did a lot long ago, it was around 1988-92. At that
time I always check the newspaper for such events. The best position being
the front facing the end of the bridge where the models will stop and turn
around there. They usually walk very fast and it is not easy to capture them
when they are walking so the best shooting time will be when they are
stopped and turn around. Also, at that point they are more far from the
background and it is easier to get a out-focus background.
For most of the shots, I use a 85-135mm lens to get 2/3 to half length
portrait, for film I usually use ISO 200 negative with flash although I have
tried both daylight and tungsten slides but with flash it is easier to get
sharper result. With today's good quality high speed film I will try ISO800
negative with a blue filter for color correction (may be correct the color
later in PS also work, in this case ISO400 film will be good enough).
C.H.Ling
----- Original Message -----
From: "Bolty" <boldbolty@xxxxxxxxxxxxxx>
> I would agree with you that the unsharp mask or sharpening tool can add
that
> certain crispness to an image. I am talking about the ability of a lens to
> pick out fine details and then for the image not be viewed as soft when
> transferred to film, so I guess you would call it the resolving power of a
> lens then. I would also say that film types and characteristics would have
a
> lot do with contrast and sharpness/resolving power eg Velvia to a high
speed
> film.
> Is there a specific standard to test for these properties in a lens or is
it
> just on what we see?
> Cheers Adam
> BTW C.H. Nice image, do you shoot much in the way of fashion parades. I
> tried it once for a freind of ours who held one in a shopping centre (bad
> background). Do you have any tips on where to position yourself, what
lens,
> film type etc to use? I could certainly do with some tips.
>
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|