The list author says: "this list is just a collection of the items i think most photographers need, the things i want, and some things i have. everything above the bag is what i do carry on an everyday basis. (i do not own the 105mm lens, but if i did, i would make sure i carry it with me)."
"i like my nikon 50mm prime. i think every photographer should have at least one 50mm f/1.8 or lower. but i find myself considering the sigma 50mm f/1.4"
"make sure you have a uv filter for all of your lenses. they do not do much, but they protect very very well, and that is really what you should want them for."
"again, disregard size in this posting and get one that fits your lens(es). i personally do not advocate using more than just a uv filter, however some people insist."
"i think, for the money, you get outstanding optical quality. a great prime telephoto lens to help you get beautiful close ups, or even a stealthy portrait."
"pay attention to the filter size you will need. i chose to show this fish eye instead of the 1000 options because i think the main purpose of a fish eye is for fun shots. quite honestly, for the price, the effect achieved and the image quality using this is pretty good."
"everyone does need at least one telephoto zoom lens... there is also a sigma version of this lens for about 200 more. i just did not want this whole list to be a sigma ad..."
"i only put it on because i want to try and ultra wide like this. it seems like it may be useful, but if you have a decent standard lens that gets you down to at least 18mm, it is not entirely necessary."
"there are times when a flash is necessary. they are expensive, but being able to bounce your flash, and manipulate light to your needs is pretty important.. so get one that will work on your camera."
"when you do use your flash, make sure the lighting is not harsh on the subject. how? by using a diffuser. any one will work usually, brand is not really an issue here."
"just an example, just make sure you get a lightweight tripod that has a couple levels. this is similar to mine, and i do love mine. make sure it comes with at least one extra base."