Boris, All the macro lenses change focal lengths as you focus them. You can get around this with a bellows and rack on a tripod. You set the focal length/field of view you want, and then crank the whole lens/bellows/camera back & forth on the rack. It's clumsy, but allows a very precise framing. Regards, Bob S.
On Sun, Jun 7, 2009 at 11:42 AM, Boris Liberman<[email protected]> wrote: > Igor, it is known fact that when focusing FA 100/3.5 and its siblings, the > whole lens assembly is in motion. That is, all glass pieces move together. > This is very interesting, though it seems that toward macro range the lens > is changing its focal length. I am saying so because I observe that when I > focus the field of view changes as well. FA 100/3.5 is surely a fascinating > optic, although simple. > > In #1 I must admit that I was starting to feel every so slightly dizzy due > to the very subtle wind. Also I am generally not all that steady as some > other photographers ;-). But I should practice more both to improve my > skills and to enhance my mind's stability ;-). > > It seems to me that you wanted to send some links to the number of flower > pictures, but you did not. > > The reflection shot you posted is rather different than those of mine. Yours > seems to be in controlled environment ;-). > > Thanks! > > Boris > > > > Igor Roshchin wrote: >> >> Boris, >> >> Of the three shots, I like the first the most. >> >> I've been experimenting with shooting various berries and fruits >> in the past few years, and I've been getting some similar shots, and >> what I concluded for myself that in most cases (especially in shots >> similar to your #1 and #2 by composition), I like seeing more DOF. >> >> In #1 I would've tried to make sure that [almost] all stamens (anthers >> in particular) are in focus. >> By association, I recalled a few shots of mine related to raspberries >> which illustrate what I mean. >> It is also a raspberry "flower": >> IMGP9428.jpg >> IMGP9503.jpg >> IMGP9527.jpg In these three, I also would like to see large DOF, >> especially in the >> last two. >> >> >> As for #3, - as in this one, I find that "frontal" shots of some flowers >> don't work for me. I discarded many of mine for this reason. >> >> And to complete the raspberry theme: >> http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9655e.jpg >> (I posted this here 1.5 years ago) >> >> >> Igor > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
