Thank You Gents for clearing it up......
adamroberts wrote:Both are very good. The only issue is there are not many options on the wide end.
I've use my Nikon AI/AIS as well as my Carl Zeiss ZF.2 on the BMCC EF.
Old Nikon AI/AIS are easy to find in 20mm and up. Any wider are very rare and very expensive.
A 24mm gets you close to the field of view of a 35mm on Super35 (C300, Alexa, FS700) and close to the FOV of a 50mm on a FullFrame DSLR (5D / D800)
Mr Roberts you are gradually turning biggest helping hand over hand.... Glad to have you and so many other fine gents over here

What adapters you believe would be good, I saw one by Fotodiox with 5-10 bucks tag and good reviews
And which Nikon sizes you have in your arsenal
John Bartman wrote:I believe John B. used adapters on a EF.
I use Leica on an EF too. Works beautifully.
As stated, wide end more difficult.
Mr. John what adapter you have been using?
Any link of footage would be highly helpful
Warm Regards