I bought these two Freewell Variable ND Filters for my Mini 4 Pro. 
Freewell Variable ND VND1-5 Stop, VND6-9 Stop 2 Pack Run&Gun Camera Lens Filters Compatible with Mini 4 Pro Amazon.com
I got them because I thought it would be nice to quickly change the setting without changing out the filter. The problem is that I don’t know how to determine when I have chosen the best setting. I get it that the brighter it is you want a higher ND value. But how do I determine which value is the sweet spot?
Also, should I remove the ND filter when doing pics and videos at night?
Anybody else out there with these filters and have any comments about them?
	
		
			
		
		
	
				
			Freewell Variable ND VND1-5 Stop, VND6-9 Stop 2 Pack Run&Gun Camera Lens Filters Compatible with Mini 4 Pro Amazon.com
I got them because I thought it would be nice to quickly change the setting without changing out the filter. The problem is that I don’t know how to determine when I have chosen the best setting. I get it that the brighter it is you want a higher ND value. But how do I determine which value is the sweet spot?
Also, should I remove the ND filter when doing pics and videos at night?
Anybody else out there with these filters and have any comments about them?
 
				
		 
			 
										 
  
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
  
  
  
  
  
  
 
		