Thanks for the feedback. I think liveview might be the game changer and
something I have no experience with except for the Mynolta A1 which has
a low resoluton screen... 320x240 IIRC.
Chuck Norcutt
On 8/15/2011 5:40 PM, usher99@xxxxxxx wrote:
> Thanks for looking and commenting Chuck, Bob, and both Waynes.
>
>> And how did you determine the use of 5 exposures and the
>> movement increment?
>
>> Chuck Norcutt
>
> Per Dr. Focus's conclusions, I empirically confirmed the image is less
> affected by moving the focusing rail vs changing mags with the lens
> helicoid. It mattered to me with a previous stack as the subject was
> approaching the edge of the frame. Big Foot
> has been described as "long throw" which I take has something to do
> with the 720deg of turn between 1:1 and infinity.
> The focusing helicoid is velvety smooth as well, so using it was easier
> in this instance (The software seems to handle either approach well
> enough.) --viewing under 5X mag at the exposure aperture makes it easy
> to refocus at the next logical plane of focus where there is a
> discernable change. I do a dry run so I know where the closest and
> farthest extremes are located. Some of the orchid wings can hang quite
> a bit behind the flower and can be tricky. I do not believe extreme
> precision
> is necessary for an optimal result as long as the steps aren't too
> large. I have seen drop dead gorgeous stacks at high mag using flash
> where it was done essentially hand held moving the camera/flash combo
> on roller gizmos on the ground.
>
> That be said these guys look interesting but in the wind the manual RRS
> gizmo may be better.
> http://tinyurl.com/3k7qttr
>
>
> http://tinyurl.com/3t43lqr
>
> Sometimes close enough for gov't work is indeed close enough, Mike
>
>
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|