ZS/TZ100 Macro and Telemacro

 


Close Macro and Telemacro with the ZS100/TZ100


I tested the TZ100 without any additional lens attached to determine its close macro and telemacro characteristics.  Using a tripod, I took shots of a small printed calendar attached to a wall from various working distances using A mode at f/6.3 and the AF/Macro (flower symbol) setting. The working distance (WD) is the distance from the front of the lens to the subject.  The month blocks printed on the calendar were 28.5mm in width.


I tested a range of WDs from the closest at which the TZ100 will focus (which is 5cm) up to the closest WD at which the camera will focus at its maximum zoom setting of 250mm EFL (telemacro).  At each WD I took shots (in 3:2 aspect ratio) from 25mm EFL up to the maximum zoom setting at which the camera would focus.


Results


The results are shown in the table below. The Field Width is the coverage by the subject within the width of the 3:2 aspect ratio image.  The smaller the field width the larger the magnification of the subject in the image.


TZ100: Table of Field Width versus WD and FL


It can be seen from the table that the greatest magnification (smallest field width) is obtained at the closest working distance of 5cm and at a zoom setting of 44mm EFL.  Below is the image that was obtained using those parameters, resulting in a field width of 58mm.  (Click on the image for the full sized view.)



TZ100: WD 5cm, 44mm EFL, f/6.3, 1/80s, 125 ISO


At greater WD than 5cm the field width increases (the magnification decreases) at the maximum available zoom setting for that distance.  However, there is more than one WD at which a a similar magnification can be obtained.  For example, a field width of about 80mm can be obtained at any WD from 5cm up to about 20cm by using the appropriate zoom setting.  In general, within these bounds, increasing the WD requires increasing the zoom setting.  While such images having the same field width may differ in working distance and zoom setting, the depth of field remains the same (at the same aperture setting).  There may however be some small differences in resolution resulting from the changes in zoom setting.


Telemacro


At the closest working distance for which the TZ100 will focus at its maximum zoom setting of 250mm EFL, which is 67cm, the field width is 115mm.  This can be compared with the TZ/60/70/80 which has a field width of 87mm at its max zoom setting of 720mm EFL at 100cm working distance, as shown earlier here.


Below is the image that was obtained for the TZ100 at 67cm working distance and 250mm EFL, resulting in a field width of 115mm.  (Click on the image for the full sized view.)



TZ100: WD 67cm, 250mm EFL, f/6.3, 1/10s, 125 ISO


A greater magnification can be obtained with the TZ100 by adding a closeup lens, as described in the following section.





Continue to TZ100 with Closeup Lenses


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