I currently have a Nikon D3100 with the kit 18-55mm lens, which I have decided to sell. I am looking to start getting more 'into' photography, and me and my fiancee have a baby on the way which we want to photograph a lot! The main reason for upgrading the body was for the extra megapixels - we want to have some canvas prints of some of the images I take. Note I also have a Nikkor 35mm 1.8mm prime lens and a Nikkor 55-200mm zoom lens, which I'll be keeping.
So I decided on the Nikon D5500 as from the reviews I've seen it seems great - I have the version that comes with an 18-140mm kit lens, but ideally I want a macro lens for capturing close up shots of our baby, plus I'd generally like to explore macro photography.
I was initially looking at the Nikon 3.5 85mm Micro lens, but it seems slightly expensive plus the reviews aren't that great. I've very interested in the Tamron SP AF 90mm F/2.8 lens however, as this seems cheaper than the Nikkor 85mm plus has a larger aperture. However it appears to be an FX lens so I imagine the focal length will be about ~130mm on my D5500, plus I'm assuming it hasn't got any auto focus motors built in.
I could live with the up potentially, but I'm just wondering what else is out there? Also, aside from Macro lens, any other recommendations for infant photography?