Wayne S wrote:
>Answering my own question, the shot was with the 90/2 as there are 9
>aperture blades. I don't think the 90/2 has the best of bokeh.
>
Like any lens, bokeh with the 90/2 depends a lot on aperture, focal
distance and the distance of the OOF areas. All the images in this
gallery from this one on are taken with the 90/2
<http://galleries.moosemystic.net/Garden04/pages/3649_22.htm>. Part of
what I was doing was trying out different shots that might have
different bokeh. What I see is a range of different bokehs from quite
nice to busy and distracting.
>Wayne S wrote:
>
> OK, I got another handle on the 90/2 macro shot mentioned in my previous
>post. The shot was not at minimum focus, lens was aimed down and while
>trying to repeat the shot, I noticed that the focus shifted over time. This
>would certainly give soft focus result with exposures on the order of 1sec.
>
That is amazing to me. I can shake, rattle and roll my 90/2 extensively
and focus doesn't move at all. Perhaps yours needs adjustment.
>C.H.Ling wrote:
>
>
>Even using aperture prefire you are still subject to vibration between 1/4s
>to 1/30s,
>
Agreed.... Unless you control it. I have lots of very sharp macro shots
made in that shutter speed range. I don't bother with mirror/aperture
prefire, as I can't see differences, but I do follow Oly's advice about
how to hold the camera and release the shutter and use a good
tripod/head combo that works with rather than against me.
> I will never use shutter speed slower than 1/125s for macro and
>most of my macro were made with flash.
>
Different strokes for different folks. I almost never use flash and
usually shoot at below 1/125. This is shot on Portra 160NC with a 50/3.5
at 1/15, f22 on a CF tripod, Bogen 410 head, "wetware" vibration
damping, no aperture/mirror prefire. It is just the 2000x3000 scan I get
from the processor, with no adjustment at all
<http://www.moosemystic.net/Gallery/_4A_0234s.jpg>. It may not be a
great image and would look better with a bit of sharpening, but I don't
see the kind of unsharpness that comes from vibration. When I get a
chance, I'll try to post some better examples.
>Manual focus is not easy, it is challenging and need lots of training but I
>like it.
>
Agreed, It's a learnable skill, although individual basic visual acuity
does make a difference.
>Here is a moving ant shot with Zuiko 80/4+170mm macro adapter, I doubt you can
>do it with AF.
>
Nice!.
Moose
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|
