I would like to take close up pictures of say spiders or insects. I am using a close up kit of 3 lenses now but saw some pictures of insects on here that are amazing and show way more detail and get closer. What kind of lens would you recommend?
Not knowing what you already own (camera or lenses) and whether it's capable of doing what you want, I would recommend looking at a "macro" lens from your camera manufacturer. Lenses specifically designed for macro are usually sharper and better corrected than all purpose zooms that have macro capabilities.