test exif data from canon powershot s45

Extracted with 'exiftags' (should use api...), and munged attribute 
labels into property names. I invented a bogus namespace. Should look 
at Gerald's implementation first...

attached mail follows:

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
	xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" 
	xmlns:geo="http://www.w3.org/2003/01/exif/cn#">
<canon_tag1_offset>1116</canon_tag1_offset>
<image_compression_mode>3/1</image_compression_mode>
<flash_mode>Red-Eye Reduction (Auto)</flash_mode>
<image_height>1704</image_height>
<horizontal_resolution>180 dpi</horizontal_resolution>
<self-timer_length>0 sec</self-timer_length>
<compression_scheme>JPEG Compression (Thumbnail)</compression_scheme>
<metering_mode>Pattern</metering_mode>
<image_created:_2003:01:10_18:51>11</image_created:_2003:01:10_18:51>
<equipment_make>Canon</equipment_make>
<supported_flashpix_version>808464688</supported_flashpix_version>
<offset_to_jpeg_soi>2036</offset_to_jpeg_soi>
<vertical_resolution>180 dpi</vertical_resolution>
<sensing_method>One-Chip Color Area</sensing_method>
<image_type:_img>PowerShot S45 JPEG</image_type:_img>
<digital_zoom>None</digital_zoom>
<macro_mode>Normal</macro_mode>
<focal_length>17.50 mm</focal_length>
<camera_model>Canon PowerShot S45</camera_model>
<resolution_unit>i</resolution_unit>
<compression_setting>Fine</compression_setting>
<focus_type>Auto</focus_type>
<color_space_information>sRGB</color_space_information>
<f-number>f/4.5</f-number>
<image_orientation>Right-Hand, Top</image_orientation>
<focal_plane_vertical_resolution>8114 dpi</focal_plane_vertical_resolution>
<image_digitized:_2003:01:10_18:51>11</image_digitized:_2003:01:10_18:51>
<bytes_of_jpeg_data>4487</bytes_of_jpeg_data>
<image_number>102-0244</image_number>
<drive_mode>Single</drive_mode>
<image_width>2272</image_width>
<exposure_bias>0/3</exposure_bias>
<lens_aperture>f/4.5</lens_aperture>
<sequence_number>0</sequence_number>
<zoomed_resolution>2272</zoomed_resolution>
<maximum_lens_aperture>f/4.5</maximum_lens_aperture>
<canon_tag4_offset>1224</canon_tag4_offset>
<canon_tag1_length>92</canon_tag1_length>
<file_source>DSC</file_source>
<focal_plane_resolution_unit>i</focal_plane_resolution_unit>
<comment>614</comment>
<canon_tag4_length>68</canon_tag4_length>
<meaning_of_each_component>Unknown</meaning_of_each_component>
<image_generated:_2003:01:10_18:51>11</image_generated:_2003:01:10_18:51>
<exif_version>2.20</exif_version>
<chrominance_components_positioning>Centered</chrominance_components_positioning>
<image_size>Large</image_size>
<shooting_mode>Full Auto</shooting_mode>
<flash>No Flash</flash>
<exposure_time>1/60 sec</exposure_time>
<firmware_version>Firmware Version 1.00</firmware_version>
<base_zoom_resolution>2272</base_zoom_resolution>
<focal_plane_horizontal_resolution>8114 dpi</focal_plane_horizontal_resolution>
<white_balance>Auto</white_balance>
<focus_mode>Single</focus_mode>
<shutter_speed>1/60 sec</shutter_speed>
</rdf:RDF>