Here's 5 popular accessories that I would either avoid altogether, or be wise in what you buy.
1) Screw in Fish eye lenses – Awful optics, terrible corner shading and strange distortions. You’ll use it once, then throw it away. Rent a proper fisheye when you really need it.
2) Tripods – They’re useful, but honestly I don’t take mine out that much, and they are a true pain in the butt to cart around. Beginners seem to buy the ones with plastic heads that aren’t at all stable, hence totally defeating the purpose. If you really want a tripod, get a good one with a detachable metal head and stable legs.
3) Remotes – You’ll use it once to take a pic of yourself in a group shot, and then it will get lost. Useful for shooting a flighty creature’s nest or hideout by placing the camera nearby, then triggering the shutter remotely.
4) Camera Armour – Probably useful on a mobile phone that is relatively light, but don’t think it will save your camera when it’s dropped on concrete. The armour also makes the camera uncomfortable to use and the buttons hard to access.
|Nikon D90 with Nikon 300mm f4.5|