These were taken a while back. Later images are better. Most of the "softness" are due to limited DOF using the reversed lens.
On 12/11/06, Markus Maurer <[EMAIL PROTECTED]> wrote: > I understand how small the shells are but I nevertheless expected the > photos to be a lot sharper. > I woul as well try with a completely white and a black background instead of > the "natural" gray. > I could imagine them to be nice in black and white too. > > greetings > Markus > > > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of > Perry Pellechia > Sent: Monday, December 11, 2006 8:09 PM > To: Pentax-Discuss Mail List > Subject: Re: K10D and Ring flash > > > Godfrey, > > I do not have access to my later photos here at work. I have some > earlier shots I can show. At the time I was trying to decide the best > way of getting these images. This set compares using a reversed > Vivitar 28mm lens and a Tamron 90mm F2.8 macro lens and teleconverter. > I think these are 1:1 comparison crops that may have been resized. > > http://homer.chem.sc.edu/perry/shells/compare.jpg > http://homer.chem.sc.edu/perry/shells/compare2.jpg > http://homer.chem.sc.edu/perry/shells/compare3.jpg > http://homer.chem.sc.edu/perry/shells/compare4.jpg > > Last shell is about 2mm. > > These are full frame shots: > > http://homer.chem.sc.edu/perry/shells/imgp1656.jpg > http://homer.chem.sc.edu/perry/shells/imgp1964.jpg > > (Note the grains of sans) > The ruler above shows mm scale. > > I know there is not much "art" to these but it is a fun way to combine > both our hobbies. > > Perry. > > > On 12/11/06, Godfrey DiGiorgi <[EMAIL PROTECTED]> wrote: > > Very interesting subject matter! I'd like to see some pictures. > > > > Godfrey > > > > > > > > On Dec 11, 2006, at 9:52 AM, Perry Pellechia wrote: > > > > > Some the shells I have had to shoot are less than 3mm and require > > > bellows, reversed lens or both. These situations make it very > > > difficult to illuminate the subject without shadow problems. The ring > > > light is the only thing I have tried that really works for all > > > situations. > > > > > > -- > > PDML Pentax-Discuss Mail List > > [email protected] > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > > -- > <----------------------------------------------------> > Perry Pellechia > > Primary email: [EMAIL PROTECTED] > Alternate email: [EMAIL PROTECTED] > Home Page: http://homer.chem.sc.edu/perry > <----------------------------------------------------> > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- <----------------------------------------------------> Perry Pellechia Primary email: [EMAIL PROTECTED] Alternate email: [EMAIL PROTECTED] Home Page: http://homer.chem.sc.edu/perry <----------------------------------------------------> -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
