PolarPro variable ND filters

[Dale D]

Sorry to be clear are you categorising the VND as a polariser in this context or do you mean a dedicated polariser filter. Still confused if you can take a pano with a VND or not as if not it seems a huge limitation

Of course you can do a 360 panos with an ND filter, but I would not recommend a 360 pan with a polarized filter for obvious reasons as just explained before.I am not categorizing the Variable ND filter as a polarizer. They are two different filters.

 

[davidro77]

Of course you can do a 360 panos with an ND filter, but I would not recommend a 360 pan with a polarized filter for obvious reasons as just explained before.I am not categorizing the Variable ND filter as a polarizer. They are two different filters.

I am told VNDs are effectively polarisers as two pieces of glass used together. And hence you cannot do 360 panos with a VND. I know you can do a pano with a standard ND. My question is can I do with a VND. If no, then it’s a big limitation. I tend to shoot a mix of video and stills. The hassle of landing and changing the VND to take a pano would probably outway the convenience of not having to swap NDs around due to changes in light.

 

[Dale D]

I am told VNDs are effectively polarisers as two pieces of glass used together. And hence you cannot do 360 panos with a VND. I know you can do a pano with a standard ND. My question is can I do with a VND. If no, then it’s a big limitation. I tend to shoot a mix of video and stills. The hassle of landing and changing the VND to take a pano would probably outway the convenience of not having to swap NDs around due to changes in light.

See if you can find this article- here is the Google listing. I have discontinued using a polarizing filter on my drone. The results were awful. Dark and light blotches across the span of the image. You need to understand polarized light and how the filters work. Just use a neutral density filter set according to how bright it is out when you make your flight. The density can be set in the Variable filter but is it constant throughout the flight, whether or not you are flying towards or away from the light. You cannot adjust the density while the drone is in the air, obviously. The link below is not an active link. You will have to go to Google and search for this.

 

[davidro77]

See if you can find this article- here is the Google listing. I have discontinued using a polarizing filter on my drone. The results were awful. Dark and light blotches across the span of the image. You need to understand polarized light and how the filters work. Just use a neutral density filter set according to how bright it is out when you make your flight. The density can be set in the Variable filter but is it constant throughout the flight, whether or not you are flying towards or away from the light. You cannot adjust the density while the drone is in the air, obviously. The link below is not an active link. You will have to go to Google and search for this.View attachment 142634

Thanks. I do know what a polariser is. The question is how does a VND behave even though it is not technically a polariser. See this article as it states you cannot use one to take a pano. That is my question. You seem to be saying you can use one as long as you just set it to a value and keep it there. This article suggests that won’t work.

MAVIC AIR VARIABLE ND

• Razor Sharp optical glass used to ensure optimal quality aerial images • 16Layers multicoated optical glass lens filters ensure crystal clarity in captured footage • Super lightweight CNC ring used in construction prevents adverse effect on gimbal • Freewell Gear Variable ND Kit includes –2-5...

www.freewellgear.com

 

[Dale D]

Thanks. I do know what a polariser is. The question is how does a VND behave even though it is not technically a polariser. See this article as it states you cannot use one to take a pano. That is my question. You seem to be saying you can use one as long as you just set it to a value and keep it there. This article suggests that won’t work.

MAVIC AIR VARIABLE ND

• Razor Sharp optical glass used to ensure optimal quality aerial images • 16Layers multicoated optical glass lens filters ensure crystal clarity in captured footage • Super lightweight CNC ring used in construction prevents adverse effect on gimbal • Freewell Gear Variable ND Kit includes –2-5...

www.freewellgear.com

Yes thanks for that. I read the article. Any variable filter or hybrid filer cannot be used for panorama, because polarized light is coming from different angles as you fly. I am not a great optical specialist but I have had really bad results using a polarizing filter, as previously mentioned.

It was a my understanding that a VND (variable neutral density) filter saves you the trouble of changing filters and saves storage since you are using only a single filter. You twist the filter to each desired amount of density needed according to the lighting conditions. It is a density that is fixed at what you set it at, e.g.: ND 64, etc.The Freewell answer explains it.