So next year I'll be going to the Dominican Republic for humanitarian work and I'm trying to decide which lenses to bring. The goal is to bring the smallest and the fewest lenses so I don't look like an attractive target to a thief. I'm not going to bring a Speedlite. Last night I was thinking through this... let me know if this reasoning sounds logical or not. I already know I'm going to be in low-light situations in the buildings we'll be working in (no power most of the time). So for one of my lenses, you would think it would make more sense to bring a 50mm 1.4 instead of a 40mm 2.8, right? However... The 40mm at 2.8 is much sharper than the 50mm at around 1.6. So to get the same exposure with the 40mm, I have to up the ISO quite a bit. But I can remove noise fairly easily and get a quality pic, but I can't really sharpen up a photo that wasn't sharp in the first place. So it seems to make more sense to me to bring the 40mm (plus it's small enough to fit in my pocket - which would be a huge plus). Does that make sense? Any thoughts?