Variable ND Filter for RF70-200 F4 L IS USM that will still allow use of Cannon Hood.

[vlnteer]

I am hoping someone out there in Canon-land can help.  It seems like every variable ND filter I have found on the market has a slight increase in diameter from the threads which on several lenses prevents the Canon hood from being removed or attached.  I have experienced this on 2 canon lenses.  My main goal is to avoid having to carry the hood separately if I want to use the ND Filter.  Unfortunately I have been unable to find any forums that answer this question as commenters seem to think any 77mm Variable ND will work and the question goes unanswered.  

One option I considered was a step down to 72mm.  However I'm not sure if I would get any vignetting and if so how bad with this focal length lens.  I'm new to doing Video but I want to be able to shoot video of wildlife from a distance.

Thanks in advance to anyone who can help!

[Waddizzle]

Time for a matte box or a video lens hood. 

[ebiggs1]

Yeah, because of the adjustment of a Variable ND Filter, I bet you are out of luck. I've seen some with pretty large knobs so no hood is going to fit. I have almost 100% stopped using filters but I don't shoot video so it makes Photoshop an easy way to accomplish the same effect. I bet there are video editors like PS that might work for you.

Bad thing I own a ton of filters! 😐

[normadel]

Hoods interfering with filters is common. Being able to reach a filter rim to turn it (variable ND, polarizers, etc.) is tough or impossible with bayonet-mount hoods.