Variable Neutral Density Filter

[Andrew McCarrick]

What do you think of Variable Neutral Density Filter, should I stay away from them?

I'm looking at this one to use with the 14-42mm lens:
http://www.bhphotovideo.com/c/product/758940-REG/Fader_Filters_VND_52II_52mm_Mark_II_Variable.html

I also noticed that page says its a 52mm front thread with a 55mm rear thread. Does that mean it needs a 55mm to 52mm adapter to use on the Panasonic lens?

There's also this one, which says it's "designed for HD Video"
http://www.bhphotovideo.com/c/produ...lters_HD_VND_52_52mm_HD_Variable_Neutral.html

 

[DaLiV]

better to use stepup rings that choose filter for step down ... otherwise will have vignetting

 

[tirapell]

I also noticed that page says its a 52mm front thread with a 55mm rear thread. Does that mean it needs a 55mm to 52mm adapter to use on the Panasonic lens?

No. It means that the filter itself fits onto a 52mm lens. However, if you want to stack another filter, the other side (rear thread) of the filter will take a 55mm thread. 52mm on lens side. 55mm on filter to ? side.

This is done to reduce vignetting on wider angles.