The Freewell ND filters are excellent quality with high value. I received the all-day pack which includes eight filters total, we’ll discuss in detail later. Within the box, there are two hard plastic cases. Each container holds four filters; additionally, a microfiber cloth is included to rid the glass of fingerprints or debris. I’ve used these filters for about five hours of total flight time so far, and I like the results.
Freewell NDs are Easy to Use
Within the all-day pack, these filters are included: ND4, ND8, ND16, CPL, ND8/PL, ND16/PL, ND32/PL, and ND64/PL. Each filter is made with 16 layered multi-coated optical glass all with a CNC aluminum casing. Since the filters were designed with the stock Hasselblad cover in mind, the filters weigh the same. DJI’s Mavic Pro 2 can be powered on with the filters attached which is great for efficiency on shoots. In the past, some companies did not take this vital step into account while designing and some Mavic/Phantom gimbals became overloaded. Since the gimbal incurred constant stress, this problem started a hot topic online. Ever since I believe 3rd party accessory brands have been conscious of thinking of the gimbal motors when designing ND filters.
I love the size and feel of the hard case; it fits in your pocket! Having the ability to carry the NDs right in your pocket is fantastic, much better than having to open up the backpack or Go Professional case to grab filters. Not like this is a huge hassle but the Mavic is a platform for an on-the-go creator and the ability to carry anything in your pockets helps. The case is made of sturdy, hard plastic which has already taken a fall from about three feet above solid concrete. Yes, there were some scratches on the case but it did not open nor did any of the filters shift internally.
When to use an ND Filter
ND filters reduce the amount of light entering the camera’s lens, just put. I use these filters to prevent the consequences of overexposure occurring when taking an aerial photo or video. Below are the standard recommendations for which filter strength to use in a situation.
CP - used in many conditions to reduce glare when the shutter speed is not controllable
ND4 - dawn and dusk applications
ND8 - cloudy or mostly cloudy situations
ND16 - partly cloudy or mostly sunny
ND32 - very bright sunny conditions, I use for snow and water
Standard ND Ratings
ND4, ND8, ND16 & ND32, CP
The number associated with an ND filter indicates that how much light enters the lens in terms of a fraction.
ND4 reduces light by 1/4. An ND4 filter can reduce 2 stops of light, allowing you to slow the shutter speed from 1/100s to 1/25s.
ND8 reduces light by 1/8. An ND8 filter can reduce 3 stops of light, allowing you to slow the shutter speed from 1/200s to 1/25s.
ND16 reduces light by 1/16. An ND16 filter can reduce 4 stops of light, allowing you to slow the shutter speed from 1/400s to 1/25s.
ND32 reduces light by 1/32. An ND32 filter can reduce 5 stops of light, allowing you to slow the shutter speed to 1/60s.
CP - can reduce up to 1.6 stops of light, normally used when shutter rates are not able to be manipulated
For more information about NDs and the exposure triangle, visit my blog post here.
Conclusions
Freewell customer service is spot on, and the products I’ve tested so far are great. If you’re looking for filters that are high-quality but are budget friendly, I’d recommend the Freewell All Day ND/PL pack. Of course, there are many brands to choose from, but overall value for MP2 filters goes to Freewell.
If you have any questions or comments, reach out to me here. As always, Happy Flying!