Sorry to take so long to respond to replies. Busy week. John Celio <[EMAIL PROTECTED]> asked: > > Here's that salt-and-pepper macro shot I mentioned: > > Big: http://www.flickr.com/photos/[EMAIL PROTECTED]/2757459631/sizes/o/ > > Main Flickr Entry: http://www.flickr.com/photos/[EMAIL > > PROTECTED]/2757459631/ > > Reactions on LJ: http://dglenn.livejournal.com/1175061.html > > Hot damn, how did you manage such high magnification? They look like a > cheese puff and ice cube! It's really cool to see such tiny objects blown > up so large they're torn from their normal context and become other things > entirely.
The general consensus in camp was that the salt looked like an ice cube. :-) I shot this with the *istD, an M42->K adaptor, a Vivitar 2x teleconverter, a Diramic 200mm f/3.5, and a reversed SMC Takumar 55mm f/1.8. I lit it from the side with a Vivitar 5200 on a hotshoe extension cable (the one from the Super Program era), and used the screen of my PDA as the stage. I didn't have a reversing ring, but I noticed that the clip-on hood for an 85/2.8 was the same size at the wide end as the built-in hood on the 200/3.5 and the same filter-size as the 55.1/8, so I used that to make it easier to stick on the reversed lens with gaffer's tape. I figured the air space between the 200 and the 55 wouldn't matter much one way or the other, since the rays ought to be parallel at that point, right? Er ... and I hand-held the camera (braced the business end of that lens combination on my fist which was against the table. Adjusted the lighting by trial and error ^H^H^H^H^H^H^H^H^H^H ... I mean 'successive approximation' ;-) ... sliding it a smidgen closer or farther after each shot. A picture of the camera and the PDA just after I finished is here: http://farm4.static.flickr.com/3066/2762601219_1dc4284b86_m.jpg and I blogged it at http://dglenn.livejournal.com/1176441.html It's scaled down to fit the 1000-pixel limit for free Flickr users, but that also hides some of the colour fringing seen in the full soze version (the original is a smidgen over twice the size of what I posted). I want to see whether I can manage an even sharper version sometime. I'm not sure whether the color fringing is all the fault of the teleconverter, or aberration in each part of the chain all multiplied together. Though come to think of it, out-of-focus points wouldn't generate parallel rays coming out of the reversed 55mm, so maybe the colour fringing was the cost of sticking that lens hoos in for the convenience of taping things together? I _really_like_ doing macro. :-> -- Glenn -- 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.
