Do ND Filters Matter? No filter vs ND vs NDPL Filter

Do you need an ND filter to film cinematic video? When should you use an ND PL filter? Do I need filters at all? Let's learn when to use what kind of filter, and what results you can expect from them.
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Do Filters Make Your Footage THAT Much Better? ND vs NDPL Filter
• Do ND Filters Matter? ...
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0:00 Introduction
0:19 What do ND filters Do?
1:09 Do you need ND filters for Photography?
1:52 What are ND PL Filters?
2:40 ND Filter Tests & Results
5:19 Will an ND PL Filter Remove ALL Glare?
5:40 How to Properly Use a Polarized ND Filter
5:43 What Strength ND Filter Should I Buy?
8:00 How to "Cheat" with ND Filters
8:48 Subscribe and Check Out My Other Videos
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#mavicair2polarpro #ndvsndpl #filtertest

[@keith-knittel]

Which filters are you guys using most? ND or ND/PL? I find myself using a mix of both. Thanks for watching!

[@bitlong4669]

I also like using graduated ones, especially if I plan to capture sky with ground or close to horizon. Give good results with dark subject like a dark forest and bright blue sky.

[@mrpeterpumpkin48]

My guess is I will be using ND a lot, but I live on a lake and have a boat, so I’ll be needing a polarizing filter also.

[@diogogamba9338]

Depend situation, i use more ND-PL I think they correct the images better.

[@AntonioIndelicato]

Bought a set of 5 ND/PL Skyreat, I can tell how the color is improved by a lot! My advise is the PL are way much better then the ND only.

[@hooliganhalo4328]

I like to do over the water low shots, so definitely Polarized. Comes out so much better in post.

[@GoodGuysMedia]

Don't know how I JUST discovered you and your channel...so glad I did! Clear, structured, delivery of info. Objective tests and studies. I appreciate your work👌

[@keith-knittel]

Glad you found the channel, lee! Appreciate your kind words and feedback! I try to be as structured as possible but it’s tough sometimes! Haha. Thanks for watching

[@mardrones]

Best video I've seen explaining NDPL filters. Thanks Keith!

[@codylander]

Love the comparison between the filters. Great work as always!

[@keith-knittel]

Thanks for the kind words and support, Cody! 👍

[@MuffinmanT90]

Wow thanks this is the 3rd video I watched and finally you just flat out explained it and didn't jump around! Thank you so much again it just clicked to me half way through I was like this guy is awesome!

[@toddjensen8806]

This is the nd filter video I have been looking for for four days now! Thanks for creating this my man

[@keith-knittel]

Glad I could help! ND filters can be confusing - they were for me at first!

[@amateurvisser]

This is probably the best explanation I've come across. Thank you.

[@keith-knittel]

Thanks for the kind words and glad it was helpful!

[@rikimarizard]

First I saw the not great Jeven Dovey video and then I'm so glad I found this video showing an actual comparison of ND vs no ND. Great work on showing the difference - super helpful to have the subject and lighting conditions the same so we can tell the difference.

[@keith-knittel]

Thank you for the kind words, glad it was helpful!

[@Smokdeel]

Many thanks for sharing.I'm relatively new to the topic and I found this video very informative and digestible.

[@4khongkong58]

I bought the Skyreat ND filters and I’m pretty happy with them. Thanks for taking the time to share your expertise.

[@keith-knittel]

You're welcome and hope you found the video useful. Thanks for watching

[@ckeelor]

Sitting here in north Carolina watching KZbin and your video was recommended to me... And you started off with a shot from lakewood park and Bradstreet landing. Wasn't expecting my hometown! Nice work, subscribed

[@keith-knittel]

Glad I could give you a look at your home town! It's a great area and love it (other than the weather right now - you have it a little warmer in NC right now!) They are doing some construction on bradstreet and that's my go-to testing spot, so I've had to look elsewhere for my videos lately! Thanks for watching and hello from NE Ohio!

[@EricTheHiking]

Love your explanation ! Very clear !

[@danteinchaosforever]

Thanks, I felt this was a well explained subject. I'm just starting with filters so I'm look for reference material and this helped.

[@keith-knittel]

Glad it was helpful! Have fun filming and thanks for watching

[@MattMattMat]

Super easy to understand and straight to the point. Thank you!

[@keith-knittel]

Thanks matt! Hope you found it useful. Thanks for watching

[@ZilveriCosas]

Okay, this was a really good explanation. As an amateur, I always struggled with ND filters. Going to save this video for future reference. Thanks!

[@keith-knittel]

Glad it was helpful! It can be a tricky topic to understand but they are a great addition to your kit for filming cinematic video in bright environments. Thanks for the kind words and watching, Zilver.

[@adventuresandstuff]

This is a great, simple video. Thanks!

[@cochisetorres3677]

bro thanks I finally understand the difference of ND filters & ND filters with PL

[@hooliganhalo4328]

Very informative tut. Not too technical at all. Actually explained everything to a T. Love the mathematics involved and love the trickery with bumping the shutter speed and frame rate. Liked and subscribed for sure. 👍

[@keith-knittel]

Glad it was helpful! I'm far from the first person to use this concept, but have been using it for years. You can also break this too! If you're shooting something fast like a car, and don't want as much motion blur, you can slightly bump up the shutter for less blur. Removing the motion blur might not be a good idea - but experiment around with your settings! It sounds nerdy, but it can separate your footage from everyone elses! Sorry for the rant and glad you enjoyed the video enough to like and sub.

[@ksaboda]

Thank you for this clear explanation. I’m just getting into nd filters for my mini 2 and your video was extremely helpful.

[@keith-knittel]

Glad to help, ND filters can be tricky at first - but they are awesome for making natural-looking footage. Congrats on your new Mini 2 and thanks for watching.

[@RomanFilus]

Great informative video! Just bought PolarPro Vivid collection and this was truly helpful. Thank you :) You got yourself a new subscriber. Also, kudos for the super crisp mic sound! Keep it up

[@keith-knittel]

Glad you enjoyed it, Roman! Those are great filters - thanks for the kind words, watching and subscribing!

[@blackout19]

Great comparison, thanks. Also, loved you in Ferris Bueller's Day Off!

[@keith-knittel]

Glad you enjoyed it! ............Bueller...........

[@redstoneranger1404]

You really helped a bloody beginner to understand when to use which filter. Thanks a lot!

[@keith-knittel]

Glad to help!

[@solicannoli34]

Great video! I was super confused about the differences between them also all the numbers lol. You saved my money. Thanks!

[@keith-knittel]

Glad to hear you enjoyed the video, Soli! Thanks for watching and glad I could save you some money!

[@OAVProduction]

very informative was about to make a purchase of some set of filters and this video just saved me a few bucks. thanks again

[@keith-knittel]

Glad to help out!!

[@ChrisParayno]

For drone footage, only during mid day. Any other time, it's a hassle especially if you are shooting multiple locations with different exposures. A filter maybe perfect for awesome sunsets but once you turn around it maybe too dark.

[@keith-knittel]

Definitely location and weather dependent, but I agree. Sometimes in the morning in ohio if it's overcast, I don't need to use a filter at all. Sometimes I have to use an ND8 at sunrise because it's so bring. Thanks for watching, Chris!

[@denisnatera3633]

Thanks for the video bro Ive watched a few videos on ND filters but yours was the best

[@keith-knittel]

Thanks for the kind words, Denis ! Glad it was helpful

[@jasonbutler2605]

Very well presented, easy to understand, truly enlightening (since we are talking about filters...). Thank you for this really useful video. I was able to understand filters much better and do away with all ambiguity related to the visual effect of ND and polarizing filters. Thank you so much for this upload! Great job! I will go ahead and buy the PolarPro ND filter set that you recommended (8,16,32).

[@keith-knittel]

Glad you enjoyed it! Filters can have some big impacts on your footage - hope you have fun using them! Thanks again for the kind words and watching, Jason!

[@AB13]

Absolute concept clearing video Thanks :)

[@keith-knittel]

Hope you found it useful, akshay! Thanks for watching and the kind words

[@athirath]

Explained really well. Thank You !!

[@keith-knittel]

Glad it was helpful!

[@tylerjslattery]

the line on the filter indicates the direction of the polarizing lines. Polarizing is done by a series of very small lines in the filter that run parallel to each other. Changing the filter from the line in the 12 oclock to 6 oclock will not change anything (because the lines are parallel and run the entire length of the lens.) The polarizing doesn't work horizontally because the phase of reflected light is perpendicular to the surface. Most of the light is vertical and gets reflected horizontally and is why the up and down lines will cancel it out.

[@keith-knittel]

Very true and sometimes frustrating (especially with a drone) to get the polarization wrong. Thanks for watching

[@maximgoodvin6519]

Хоть один умный человек нашелся, который понимает как устроен поляризатор ))) А автор ребенок с игрушками... ))

[@tylerjslattery]

@@maximgoodvin6519 Спасибо

[@TNBstudio]

“If you don’t like, share with the one you don’t like.” Wowww! i like this sentence.😎😎😎

[@keith-knittel]

Haha just having fun with the outro!

[@RYANP3Z]

Great explanation, one of the best I've seen on KZbin so far. Thanks for putting this together!

[@keith-knittel]

Thanks for the kind words, Ryan! Enjoyed making it - thanks for watching and your support!

[@abdanshipp7037]

so very clear, thnaks so much

[@keith-knittel]

Glad it was helpful!

[@Fjay0609]

thanks, on-point what I was looking for.

[@keith-knittel]

Glad to hear that, thanks for watching!

[@robjeeves]

Nice tip about the frame rate mate. Not heard that one !!!

[@Tom17ire]

Great video. I've watched a lot of videos about ND filters and this was the best. Straight to the point. Cheers :)

[@keith-knittel]

Wow - glad I could help! Thanks for the kind words and watching!

[@floriannoel362]

I agrre here after watching countless videos on the topic this one made me understand it all ! Clear and simple great job

[@keith-knittel]

@@floriannoel362 Thanks, glad the video was able to help!

[@RokkarTV]

Dang dude, this was informative. Thank you for making this video :)

[@keith-knittel]

Glad you enjoyed it and thanks for the kind words!

[@4K-Walk-and-Drive-BR]

Excellent explanation! Thank you so much for sharing your knowledge, here! 👋

[@pplusbthrust]

A lot of went into this presentation. 👍 Thanks.

[@keith-knittel]

This took a while to film, but hopefully you enjoyed it and found it helpful! Thanks for watching

[@musicbrum1]

Very nice explanation !

[@rajeshp6700]

Many thanks! I have looked high and low for an explanatory video on ND and NDPL filters and you have just made it so clear and to the point. Couldn't help giving a big Like (am already subscribed!). Just one question. I have an Osmo Pocket 2 and was looking for directions on ND and NDPL filters. All that you touched upon in this video will, I assume, be just as relevant for non-drone (the Pocket 2, in my case) videography too, right?

[@DjMickeyC1]

Very impressed with this my friend. Off on a trip to Wales, UK on Sunday to get some footage. Just bought the polar pro shutter collection filters. Hopefully do a good job 😁

[@keith-knittel]

Have fun! That sounds like a great (and windy!) spot to film - good luck and thanks for watching

[@profilgeek5332]

"if you don't like the video, share it to some one you don't like" ahah I love it. Thanks for this video ! It is very interesting with details, I was looking for some informations about ND/PL filters and you gave me the answer I was looking for. Many thanks !

[@keith-knittel]

Glad you found the video helpful and thanks for the kind words!

[@TrockeyTrockey]

Thanks for info. Interesting!

[@a.b.5757]

Thanks Keith for great video! What is still open for me, is following question - would you recommend using nd/pl filter on non-reflecting objects?

[@Mir_Vashemy_Domy]

Thanks for your video. Very useful!

[@keith-knittel]

Glad it was helpful!

[@itsmeericb]

Awesome video! Great info! I am a motovlogger and use a gopro on my helmet. Having the motion blur helps to show my environment when I am at speed.

[@keith-knittel]

For sure! That is a great use for the slight motion blur - and as you go faster, the blur increases. Thanks for watching, Eric!

[@DroneALRM]

Nice tips! Good information. Congratulations from Brasil 🇧🇷

[@keith-knittel]

Thanks for the kind words! Greetings from the us!

[@TheEmperor2029]

Thanks for advices and for video!

[@keith-knittel]

No problem - thanks for watching and commenting!

[@pierresakr1811]

Thank for Your Prompt Explanation ,

[@keith-knittel]

You are welcome, hope it was helpful! Thanks for watching

[@TexasFamilyCamping]

Great rundown. I've yet to explore the ND filters on our Air 2 drone. I'm excited to go out and try this out.

[@keith-knittel]

They're awesome for the MA2 since the camera is so good! If you're filming a lot in bright environments they will give you great video if you're using the 180 degree shutter rule. Thanks again for watching so many of my videos, Texas Family Camping!

[@fwfeo]

From my experience in Photography using circular polarizing filter, it is a biased filter! I mean no matter with position you adjust it to, it'll cut off some glare in the scene. For example you can make the sky that is 90 degrees from the sun's position looks super blue and dark or make it look slightly brighter compared to the surrounding scene. It's a tricky filter but very enjoyable to use. I highly recommend it if you're shooting a bald guy with shinny head! You can cut the glare for your portraits quite a bit! It's also great for shooting through glass or clear water in nature.

[@keith-knittel]

It's a tough filter to use, and it changes with how you point your camera at the object. There is a fair bit of changing angles in the air while using one with a drone. It can be done, but it's definitely not a "set it an forget it" type of filter! Thanks for watching

[@dmichalopoulos4239]

finally someone that can simply explain some things about how to use filters on people that are not photographers or have experience.

[@keith-knittel]

Glad you enjoyed the video! I wanted to break it down but not be boring and too drawn out. Hope it helped and thanks for watching!

[@PatrickConlon]

Great job.. you have shared a very useful information.

[@keith-knittel]

Glad it was helpful! Thanks for watching

[@ReadytoChop]

Lakewood, nice. I've filmed at the Solstice Steps pretty often.

[@keith-knittel]

It's a great place to film (and take a walk/run)! Thanks for watching and commenting

[@Auhana50]

Polarization works better when it’s at a 90 degree. Great video thanks for posting

[@keith-knittel]

Yeah, just how polarization works - decided to test it out just to make sure the lines on the filter were correct (and I've known that, but I never actually tested it before now). Thanks for the kind words and watching, JC

[@yuriyakubovsky6444]

Thank you!

[@kevinpetergemeniano5371]

Best explanation ever!

[@keith-knittel]

Thank you, Kevin! Appreciate the support

[@bulversteher]

A pol filter is the same at 12 o'clock an 6 o'clock (or 3/9, 1/7, etc).

[@keith-knittel]

I agree! This video is meant to be an introduction to the different kinds of filters, so I thought showing a few examples would help drive the point of PL filters a little more. Just be aware that not all polarized filters are created equal, and some filters may have a cross-polarization effect if you move the polarizing filters too far. This is less of an issue on filters with markings or hard stops but still something to be aware of. Sorry for the late response - thanks for watching and pointing that out

[@rangerrick8220]

Very good explanation - thanks! One question - what are the best settings and filter for eliminating jitteriness from med speed sideways panning motions on a normal sunny day at noon?

[@TheAussieRepairGuy]

8:29 - that little tip saved me money....

[@user-goldeneunga]

reeealy nice video quality!

[@keith-knittel]

I'm glad you like it! Thanks for the kind words and watching

[@ZayasRaymond1]

Sold me on the polar pro filters. Was going to get a cheaper set but I love the quality of the polar pro’s.

[@keith-knittel]

Filters are tough, since they go in front of your lens, cheaper ones can have a color cast or blur the image when you just want it darker. I’ve been really happy with the polar pro filters so far!

[@WithDennisK]

LOL the last sentence

[@my-walks]

Very helpful, Thank you

[@keith-knittel]

Glad it was helpful!

[@elmono3939]

Well explained. Kinda wonder, why DJI decided to put in a f2.8, fixed aperture lens on this drone.They probably saved 2 dollars, but made us to deal with ND filters, lots of guessing, and high probability of ending up with overexposed footage. I would rather pay $100.00 more to have few more f-stops. Don't think that was a good design decision.

[@keith-knittel]

Hey there El Mono, some of the DJI drones (like the Mavic 2 Pro) has a variable aperture, but still needs ND filters to properly expose your footage. A non-fixed aperture definitely helps in those times where you need to swap ND filters to a stronger filter, adjusting the aperture can definitely save you there but ND filters are a pretty common tool to have for shooting natural-looking motion blur with your footage during the day. Totally see where you're coming from though. When flying the Mavic Air or mini series, I definitely find myself wishing there was a variable aperture.

[@a.b.5757]

Hey Keith, Have you tested and compared DJI and Polarpro filters? Is there any difference?

[@tman6495]

Hey, that was the "money" shot of downtown...😎👍

[@keith-knittel]

Thanks! Hope you enjoyed the video!

[@georgemarciocardoso]

Nice job. Thank you

[@keith-knittel]

Thanks for the kind words and watching!

[@bazilmatthews9299]

Thankyou. Was out and tried to fit. Not the same as Mini 2

[@davidshuttmedia373]

Nice subbed! Just a side note, if you double the frame rate say to 60 and then use the 120 shutter angle that will give the 180 degree shutter if you slow it down, but if you don't slow it down then it will be a bit more staccato

[@keith-knittel]

Hey there David, thanks for the sub! I was under the impression that the shutter angle was determined at the time of recording. So filming at 24 fps / 48 shutter speed would be a shutter angle of 180, but also 60 fps / 120 shutter speed would also be a shutter angle of 180, regardless if you slowed it down or not. You can slow it down, but the motion blur will remain the same (more drawn out if you slow the footage down, but it would be the blur would be the same). I think the stuttering may occur if you're putting the native 60 fps footage into a 24fps timeline. Interpreting that 60fps footage to the 24fps timeline would eliminate those stutters, but you'd have to slow down the footage. I could be wrong here, but let me know what you think. Very good question and thanks for bringing it up!

[@davidshuttmedia373]

@@keith-knittel Oh no, I read what I said and worded it terribly haha, it's because most people edit in a 30p timeline even with 60p footage, so you're right if they slow it down it'll be fine, but if they edit in a 30p timeline with the 60p footage and don't slow down the footage to keep all the frames then 1/2 frames will be missing which will make the shutter angle for those shots at a 90degree angle instead of a 180 degree angle.

[@vijaCZEk1]

thank you very much, usefull video!

[@keith-knittel]

Glad to hear that! Thanks for watching

[@olivierhacking]

Just to understand it correctly, do you adjust the polarisation depending on the scene? Or do you always stick to 12 o'clock for example?

[@thepuppetz]

Hi Keith. Basically I’d say the best practise for Polar Pro filter is to set the line to 12 o’clock to get the maximum polarise effect. Correct?

[@The_Idea_of_Dream_Vision]

Great tips

[@OsorioMotoVlog]

very good.. saludos desde Paraguay

[@mraznoor]

YOUR AUDIO SOOOO GOOODD

[@keith-knittel]

Thank you! I spend a long time trying to get my audio just right for these videos, glad you liked it!

[@OCEANCRAFTSMotionGallery]

I am using MOMENT AIR ND filters on M2P. I also have PL filter from MOMENT but never had a chance to use it so far. Thank you for your detailed informative video. I”d like to find an opportunity to try my PL filter!

[@keith-knittel]

Glad you found the video useful! How do you like your Moment filters? I've never used any but would like to try them out in the future. So many filters to try! Thanks for watching and commenting

[@OCEANCRAFTSMotionGallery]

Moment filters give me richer tones while controlling the light balance. I love them😃 Have a great weekend, my friend🌈

[@jaysun070476]

I bought the dji filter the nd16 seems dark compared to other nd 16 filters i have. Had to up the iso in sunlight to get the right exposure.

[@mrpeterpumpkin48]

Thank you! I think I FINALLY understand the benefits and reasons behind using these filters. Great job. Well done. I have a Mini 2. I realize it’s limitations but I’d like to get a polarizing filter for it. I don’t find an offering from Polar Pro Filters. Do you have a recommendation?

[@keith-knittel]

Filters are tricky at first but they can give you some great results! Freewell has some polarized Nd filters. There is a link in the description to them on my “mini 2 accessories” video. I’d link you here but I’m on my phone. Thanks for watching and glad it was helpful!

[@BillSheley]

very good explanation

[@keith-knittel]

Thanks and hope the video was helpful!

[@sashokiz606]

Yeah boi. Good explained 👍🏻

[@keith-knittel]

Glad you liked it! Thanks for watching

[@wlacalle]

Great information 👍

[@keith-knittel]

Glad it was helpful!

[@hildaelson4203]

Me with a newly bought Mavic Air 2: keep watching those amazing footages! I can totally do this! Me after unboxing: how do you assemble this thing? Let alone how filters and frame rates and exposure work hahaha. But thank you so much for this video! I will need to come back to this after I’ve learned how to fly it.

[@keith-knittel]

Haha totally understand what you mean. There is a learning curve, but if gets easier the more you do it. Most all cameras (and DJI) drones are pretty similar, so if you know how to use one - you'll be able to pick another one up pretty quickly. Just the initial learning curve is tough - and I still learn new things all the time! Congrats on your new drone and thanks for watching

[@novikovgarage_SPB]

:))) ha-ha-ha

[@MonsieurBlain]

Dude this video was exactly what I needed. THANK YOU

[@frednorman1]

Excellent video

[@CurtisDensmore1]

A polarized filter at 12 o'clock vs 6 o'clock is the same thing. Light bouncing off surfaces is polarized parallel to that surface. Filters remove light polarized in a certain plane.

[@wza360]

Awesome. Thanks

[@keith-knittel]

You're welcome! thanks for watching and commenting

[@animaxxx4429]

Hey man I got a question. I'm a beginner and use Davinci Resolve 17 (free) and calibrated my monitor using downloaded ICC profile from internet. Does Davinci Resolve support it out right or do I have to install 3D lut in Resolve for it to match the calibration ? If yes then how to do that ? Please guide.

[@aceofthebrothelstreet6720]

great man i am subscribing

[@keith-knittel]

Thanks for the sub! Hope you enjoyed the video

[@droneriobr]

Awesome video!

[@keith-knittel]

Glad you enjoyed it 👍👍👍

[@soumynonareverse7807]

Are there any self adjusting variable ND filters that uses a clip or something similar to attach to Go size cameras?

[@britwincollins8590]

I just got and air2s still getting used to it but will like to know if this video sample are normal, D-log or HLG

[@evanc1721]

Interesting video, but I still have a question: why not shoot with maximum clarity / no motion blur and get that in post? I am hesitant to waste permanently frame quality, I might need the non-blurry frames in the future..

[@asura4938]

Hello Thanks for such a informative and easy to understand explanation. I just recently bought dji mini 4 pro i was thinking of buying a set of nd filter but then i saw that there and two choices ndpl and ND …. Which should i buy as i will not buy these again.

[@MrMiXxa]

Great job...👍

[@keith-knittel]

Thank you so much 😀 Thanks for wathcing and commenting!

[@royevans4581]

Great explanation of this rule. Just a question about the rotating pl filter. Is it only to be moved to 12, 3, 6 and 9 positions?

[@keith-knittel]

Thanks for the kinds words! You can rotate the filters 360 degrees unless it's a "hard stop" filter. I just used the common 12, 6 and 9 as common positions

[@MoXXXL]

Вполне понятно! Спасибо!

[@MikZaimi-bx4hf]

Good job sir

[@keith-knittel]

Thank you!

[@richardglazebrook8055]

A Polarising filter, by virtue of it's theory of operation, has also an overall filtering effect. On a clear sunny day, a blue sky provides the best example. Turn the filter and see through it , the sky/ cloud contrast change. The orientation of the filter {12 oclock} is invariably towards the sun. The effect extends to any surface that reflects light as would a mirror. ie water. Hence the reduction of the glare from sunlight over water. The effect is dependent on the orientation of the filter toward the sun, Fly fishers use polaroid shades to see their prey. Of course an actual mirror, being a metallized surface, reflects light; while reintegrating and removing the polarization. You will see no reduction in glare off a metallic surface. I don't think a polariser would necessarily be also a neutral density filter. It doesn't matter for B/W photography. But then I think back to the colourblind photographic plates of the past, with nary a cloud to be seen.