[marco37777741]

我想問下咩叫做全片幅呀
同埋我想問下450d新手用咩閃光燈係最好呢

[lewealace]

即係張sensor 的大小是‘full size'　，i.e ＝一般菲林的SIZE
畫角唔會被裁走外圍（５Ｄ以下所有ＭＯＤＥＬ都會ＣＵＴ走外圈成像，變左ＷＩＤＥ鏡ＮＧ夠ＷＩＤＥ)
可參考前面'full frame or non full frame' 討論，ＣＨＩＮＧ們有大量資料

sensor size in ascending order: mobile phone<DC<some pro DC<APS-C(e.g. 450D)<APS-H(1D M3)<Full Frame(5DM2 or 1Ds series)

450D suggest 550 or 580II
if budget ok and dun wanna change in future, buy 580II becaz flash is always not powerful enough when u want to use

[Obi-Wan]

welcome to EOS FAQ
http://photonotes.org/articles/beginner-faq/cameras.html