Hi I am curious to know if this is a good idea, in general. I don't have a full size tripod yet, so I only take handheld photos. When the lighting is dim, I will set the camera to shutter priority and set the shutter on 1/60 or sometimes as low as 1/40. I just let the camera pick its own aperture, which in some cases could be 1.4 - or even in daylight but near a tall building it might pick 3.5, etc. I have not experimented with using anything above 100 ISO yet - that's next. Is that a good general strategy for low lighting or should I just bump up the ISO (how much is optimal) and/or vow to only use a tripod (which I cannot do yet, and in many cases just don't want to cart it around, for instance when traveling...). Or is there something yet I'm just not thinking of? thanks!