Photography is all about capturing light.  At night most modern cameras struggle because digital sensors don’t perform well in low light conditions.  A camera’s focusing mechanism also requires light to create a contrasting target. My current Nikon D7000 does a great job during the day and in the studio – where there’s light.  Not so much at night.  The performance of the smaller DX sensor really falls apart at about ISO 800.  These images required a lot of help in Lightroom / Photoshop to cancel the noise (grain).  If only I could hit the lotto and buy a full-frame sensor Nikon D800.  Camera lust.