！求助：GND Filter

打算近期定购GND Filter，仔细研读了云漫大师的滤镜宝典，拟出以下采购计划。担心自己的认知力有偏差弄错了，所以下单前想烦请坛里的前辈大侠们帮看看，把把关。

平时常会因着自己的“无知无畏”耍出很多乌龙，吃了苦头，逼得慢慢学乖了，三“问”而后行啊～先谢了!

(Lens: Nikkor 24-70/80-200)

Question 1： 因为.6的GND缺货，所以弄了两套方案。有点为难，不知道那个比较适合

Question2: Plan1中的SoftEdge和Plan2中的Soft Transiton是一回事吗？按字面翻译好像不一样，没弄明白，不敢妄断。

1.Filter Adapter Ring： Cokin/77mm Z-PRO/

 http://www.bhphotovideo.com/c/product/387404-REG/Cokin_CZ477_77mm_Z_PRO_Adapter_Ring.html

2. Filter Holder： Cokin/Z-PRO

http://www.bhphotovideo.com/c/product/387303-REG/Cokin_CBZ100_Z_PRO_Filter_Holder_Requires.html

3. GND Filter(Plan 1)

a. LEE/4x6" 0.3 Resin Filter - Soft Edge

http://www.bhphotovideo.com/c/product/87376-REG/LEE_Filters_3NDGS_4x6_Graduated_Neutral_Density.html

b.LEE/4x6"0.9 Resin Filter - Soft Edge

http://www.bhphotovideo.com/c/product/87382-REG/LEE_Filters_9NDG_S_Graduated_Neutral_Density_ND.html

4.GND Filter(Plan 2): LEE/Soft Filter Set 4 x 6" - Consists of Three Graduated ND (Neutral Density) Filters (.3, .6, .9) - Soft Transition

http://www.bhphotovideo.com/c/product/292653-REG/LEE_Filters_NDGSSET_Graduated_Neutral_Density_Soft.html