Lens hood for 20mm lens?

[etrigan63]

Hey all,
as you may (or may not) know, I adapted a Canon FD 20mm f/2.8 lens for my A7II. I was trying to hunt up a wide angle lens hood for the little beauty, but screw-on hoods only go out to 24mm (70° angle). Would a larger version with a step up ring solve my problem? Say an 82mm version + 82mm-72mm step-up ring? This lens has a 94° field of view.

 

[Ario Arioldi]

Hey all,
as you may (or may not) know, I adapted a Canon FD 20mm f/2.8 lens for my A7II. I was trying to hunt up a wide angle lens hood for the little beauty, but screw-on hoods only go out to 24mm (70° angle). Would a larger version with a step up ring solve my problem? Say an 82mm version + 82mm-72mm step-up ring? This lens has a 94° field of view.

May be here there is something you can use.
http://www.hoocap.com/en/product.php?CNo=2
I have some of them (but not for your lens size) and I found them very good.