[CY580]

1)lens 尺寸越大是否越好!?吸光好d!? ..eg: 77mm 62mm 58mm etc...唔係光圈........越大代表越好? eg:sigma 50 1.4 77mm vs canon 50 1.4 58mm

2)用400d/450d 入門機係洒樓or 洒店(黃燈) 通常WB 點set..? 用左鎢絲燈仍然偏黄 自訂WB會否好D?? 開閃?同唔開閃又可以點做!?

3)PICTURE STYLE 中既反差其實有嘜用!?


Thanks!

[叮噹仔]

1.5) s50.4 評語都比c 50.4 黎得好.
2) 如果用左都唔得, 有2個方法, : 1. 影raw , 返屋企用software 逐100k咁搵個最好既, 2. 自己用白紙o係現場set
2.5) 開閃用返大陽 WB

[beani]

1. The amount of light captured by a lens is proportional to the area of the aperture. which means the longer range of the focal length with bigger aperture will have bigger area of lens glass.
thats why you a 85mm f1.2 is much bigger then 85mm f/1.8, and about the same size of a 200mm f/2.8.

2. It doesnt matter of 400D or 450D, when you in an indoor low light environment, those 鎢絲燈 is about 2800k -3800k depends on the output of those lights, and more likely you will use 1/60 - 1/100 to take shots without flash, the longer the shutter open, the yellowish it will bring to the photo. bring a gray card, and you will get the correct WB at the spot.