Buying a Marco Lens

[segway]

I'd love to take some close up HD footage of insects. Is there a macro lens that someone could recommend?

Also, it seems that 43mm is not the standard. If I step up to a larger diameter:

1) Is that recommended?

2) If so, what size should I step up to?

Thanks

[Mal]

You could get a 43mm Close-Up lens:
http://www.bhphotovideo.com/c/product/163729-REG/Hoya_017741_43mm_Close_up_Kit_1_2_4_.html