At present, there are 550d Canon (18- 135 sets) and 90 micro-dragons. I want to add a UV mirror at 90 and a polarizer and close-up filter at 135.

1, players who cherish the lens often install a filter to protect the lens, but in fact, the filter will affect the image quality ... so it is not recommended to install it in principle, but if it is necessary to install it, it is recommended not to choose the cheap one, otherwise the rare macro lens will not be worth the loss because of the poor image quality caused by a cheap filter ... If I were you, I would choose the protective lens of Kengopro1D.

2. The polarizer is actually used to eliminate non-metallic reflections, but I didn't buy this either (I seldom use it as a condom, and the lens caliber of my hand is too unsuitable for adding a polarizer). But if you want to buy a cheap green leaf polarizer, you can buy it below 30 yuan, and the decent Kengao is below 200 ... In fact, just like a UV mirror, being too cheap will affect the picture quality, so it makes sense to be expensive.

3. The mainstream is XPRO close-ups. The price is about 400 ... but since there is a macro head, it is a pity not to use it. I suggest that before you go out, you should decide whether to shoot macro or scenery this time, and then try not to change the lens. When you meet the scenery that must be changed, you should find a relatively sealed place with the bayonet of the fuselage facing down, and change the lens quickly. ...

4. I am also afraid of trouble in this respect, just look at the brand and trust Pinsheng brand. 550D battery, the best one will sell for about 60 on Taobao ... why don't you buy one?