Photography is a largely singular hobby. For many of us there was no mentor to keep you us believing things that are wrong and teach us things that tool until now to realize.

Today is your chance to go back and tell you back then one (1), two (2), or three (3) things you know now that you wish someone would have told you back then.

<table class="exif" id="exif1282019464174" style="display:none;"><tbody><tr><td><b>Camera-Specific Properties:</b></td></tr><tr><td><b></b></td></tr><tr><td>Equipment Make</td><td>Canon</td></tr><tr><td>Camera Model</td><td>Canon EOS 40D</td></tr><tr><td>Maximum Lens Aperture</td><td>f/1.8</td></tr><tr><td><b></b></td></tr><tr><td><b>Image-Specific Properties:</b></td></tr><tr><td><b></b></td></tr><tr><td>Horizontal Resolution</td><td>70 dpi</td></tr><tr><td>Vertical Resolution</td><td>70 dpi</td></tr><tr><td>Image Created</td><td>2010:08:16 23:21:57</td></tr><tr><td>Exposure Time</td><td>1/250 sec</td></tr><tr><td>F-Number</td><td>f/1.8</td></tr><tr><td>Exposure Program</td><td>Aperture Priority</td></tr><tr><td>ISO Speed Rating</td><td>400</td></tr><tr><td>Lens Aperture</td><td>f/1.8</td></tr><tr><td>Exposure Bias</td><td>0 EV</td></tr><tr><td>Metering Mode</td><td>Pattern</td></tr><tr><td>Flash</td><td>No Flash, Compulsory</td></tr><tr><td>Focal Length</td><td>50.00 mm</td></tr><tr><td>Rendering</td><td>Normal</td></tr><tr><td>Exposure Mode</td><td>Auto</td></tr><tr><td>White Balance</td><td>Auto</td></tr><tr><td>Scene Capture Type</td><td>Standard</td></tr><tr><td><b></b></td></tr></tbody></table>