Questions about Lowepro Toploader Zoom 45 AW II

Yes, the camera fits but then the bag is full. With a bigger lens it doesn't work anymore. Good size compact

According to my own research, this should fit from the inside dimensions. :)

Yes, it definitely fits - significantly larger combinations also fit inside.

I need the bag for my Lumix DMC-FZ1000. This camera fits in perfectly. However, there is not much room for accessories. With the charger, various filters, spare battery and various cables, I need the next larger bag from Lowepro Toploader Zoom 55 AW.

I don't know the Nikon D5500 exactly, but there was just enough room for a Canon EOS 600D with an EF 28-135 mm IS USM (170 mm long). There is also enough room for an Alpha 6000 with both kit lenses. Hope this helps.