Ok sweet.

Now the bad news. It is $175 for a 77mm ND filter

I only have the 55mm ND's for my other lens'

you can check your histogram by looking at the photo in photoshop. just remember to get rid of the border as it will affect it.

also, if a picture is naturally dark and there's lots of shadows... then the histogram will also be to the left. trying to shift it to the right is silly.

u need a GND, not an ND

GNDs fade from dark to light ... NDs are the same tint and usually used mid day to drop the light in the entire frame (so u can shoot running water etc)

If you shoot in using raw then you have more flexability to tone down skies etc too as there is more information saved than a jpg (12bit unprocessed vs 8bit camera processed and compressed).

I agree ith methd about cameras blowing highlights in auto, av, tv modes etc.

Dan get the cokin adaptor for ur lens and get the gnd filter that slots in i think it may be a little cheaper.. see Stu. my friend is ordering same thing off him tomorrow.

I had a squiz at those, will take a better look, need to get hold of stu for some cmos cleaning gear