Impartial Density (ND) Filters Can Save Your Drone Footage
The standard of the footage drones can seize has steadily elevated since they first gained recognition over a decade in the past. I
bear in mind flying some early DJI drones, and I used to be in love with the power to seize footage from a singular viewpoint, however I
bear in mind interested by how way more detailed the footage that got here from my cameras.
Drones have improved in each method for the reason that early days: longer battery life, better vary, higher object avoidance, and an ever-increasing array of software program instruments to assist create cinema-worthy digital camera actions.
Essentially the most essential enchancment for video and photograph customers is picture high quality.
Regardless of how good the footage is from these drones, one factor is inescapable—footage high quality is determined by lighting circumstances.
With (comparatively) small sensors needed for drones to maintain to an affordable dimension, it’s simple to seize footage that requires extra
dynamic vary than the sensor can deal with. A shadowy forest lit by a noon solar can lead to misplaced element within the shadows, blown-out
highlights, or each.
Flying a drone at golden hour improves issues because the delicate, colourful mild helps take the sting off these difficult circumstances. Nonetheless,
capturing footage within the few fleeting moments of good lighting is just typically sensible or doable.
Usually, particularly on drones with fastened apertures, the solar’s brightness could be so nice that it’s inconceivable to keep away from overexposing the
picture. ISO can solely be lowered a lot; as soon as this restrict has been reached, it’s inconceivable to forestall overexposure.
Marriage ceremony videographers, actual property videographers, and plenty of different drone creatives have to fly when and the place the job calls for.
Usually that is the center of the day when the solar is excessive and harsh, and circumstances are absolutely the worst for the dynamic vary
capabilities of drone sensors.
For instance, historically, a bride’s gown is both white or a shade off from white, whereas a groom’s clothes is usually very darkish. These are the widest extremes doable in images, and the problem of capturing particulars at midnight clothes with out blowing out the highlights within the mild clothes is difficult sufficient with a full-sized digital camera sensor.
Flying a drone at a marriage introduces its personal challenges, with a birds-eye perspective that’s significantly harsh with out the ground-level objects that may present softer shadows reminiscent of a tree or an overhang.
And not using a impartial density filter a videographer is compelled to both expose the shot for the highlights of the gown and lose all element within the fits (making groomsmen and groomswomen seem like they’re shrouded in a black sack).
Utilizing a Impartial Density filter reduces the obvious brightness of the highlights, permitting for an publicity the place each the white and
black clothes are capable of be captured with out dropping highlights.
For nature and panorama videographers and photographers, the challenges are related, although extra about creativity than documentary in nature.
The human eye can stability out mild in a scene so huge fluffy clouds look detailed and textured, however for a drone sensor, clouds can simply overexpose and switch into blobs of brightness. This may smash a superb panorama, turning clouds from attention-grabbing particulars into distracting objects.
By attaching a impartial density filter, a drone consumer can seize the clouds and the panorama with out over or under-exposing the
scene.
Because the quantity of filtering needed adjustments at completely different instances of day, having a set of ND filters of assorted intensities permits a
drone creator to choose precisely the correct quantity of filtering for the quantity of brightness in a scene.
Reflections are an extra concern for these capturing footage from topics with reflective surfaces, reminiscent of home windows on
buildings or our bodies of water. Attempting to Photoshop the reflections of a neighboring constructing from an actual property shot is a nightmare. It’s
equally arduous to boost or take away reflections of objects on the floor of a physique of water.
As with most issues photographic, it’s higher to repair these issues in the true world than it’s to repair them in put up.
Filtering It Out
For terrestrial creators (anybody capturing footage right here on the planet’s floor), coping with difficult lighting circumstances is
equally necessary however a lot simpler.
If you wish to shoot a scene on a shiny day, you may both cease down your scene to cut back incoming mild or decrease your ISO. But when your scene requires the creative look of a wide-open aperture, and also you’re already at ISO 100, issues get tougher, particularly with video.
Many video codecs require setting the digital camera at a base ISO, usually ISO 800 or larger. When you’re attempting to shoot video in shiny mild at
1/sixtieth to match your body charge, and it’s worthwhile to seize at ISO 800, you’re going to blow out your highlights.
The answer is to make use of a impartial density (ND) filter. These easy however important items of optical glass cut back incoming mild with out including
a coloration solid. ND filters are available in varied strengths and reduce mild, so capturing a scene on the correct ISO and aperture with out
blowing out all of the highlights is feasible.
Impartial density filters assist with dynamic vary by lowering the very best brightness degree of a scene, so that you don’t should meter for
the highlights and lose your shadows.
For these attempting to cut back reflections, round polarizers filter out reflections. Anybody who has worn polarizing sun shades is aware of the
distinction they make in visibility.
Screw a impartial density filter or round polarizer onto your digital camera’s lens, and also you’re good to go. Since a filter is a bit of optical
glass that sits forward of your lens, having a high-quality filter is important to picture high quality.
You’ll be able to’t simply screw a filter onto your drone, although. Or are you able to?
Placing It On
Many drones have replaceable entrance lens parts and covers which are designed to maintain objects from scratching the lens (or
lenses). Most drone customers have but to study that these parts are detachable, permitting for filters to be connected rather than the
clear glass.
Ok&F CONCEPT makes varied drone filters crafted from AGC optical glass. The corporate’s high-end Nano-X PRO filters are the
highest high quality filters Ok&F makes and have a multi-layer coating that reduces flaring and ghosting whereas additionally stopping oil, mud, and
moisture from sticking to the lenses.
The corporate additionally makes round polarizers to cut back mirrored mild, which is comparatively distinctive within the drone filter market. Ok&F CONCEPT has filters for single-lens drones just like the Mavic 3 Basic and multi-lens drones just like the Mavic 3 Professional and three Professional Cine. Filter set up is straightforward. For many drones, all that’s wanted is to show the put in lens covers to pop them off after which slide on a brand new filter.
In all, there are filters for a dozen varieties of drones, and there are dozens of filters obtainable, together with kits with a number of impartial density filters, permitting for exact picture enchancment in any lighting situation. Variable impartial density filters enable a certain amount of sunshine discount to be dialed in exactly.
Filters are examined to make sure they don’t have an effect on the efficiency of the digital camera’s gimbal system, so there’s no danger of the filters inflicting sluggishness on poor efficiency when orienting the cameras.
High quality Pictures
These first photos are from the Mavic 3 Professional Cine with none filters connected. Whereas they’re good photos, they exhibit overexposure and lack of element.
With out Filter
With Filter
Just by changing the glass protecting of the Mavic with the Ok&F CONCEPT ND filters, we see quick enchancment, even with out zooming into the small print. Discover the higher tonality, coloration saturation, and particulars attributable to minimizing over and underexposure.
Picture and video high quality are instantly improved with the filters connected, and video modifying software program requires no coloration adjustment.
Conclusions
With particular person filters costing $19.99 to $31.99, a small funding in optical high quality rapidly turns into essentially the most vital funding
you can also make in picture high quality.
Ok&F CONCEPT filters can be found at Amazon Kentfaith, B&H, and Adorama. The corporate additionally makes many filter units for normal digital camera lenses to enhance non-drone photograph and video photos.
The corporate additionally makes an progressive sq. filter system, permitting sheets of their high-end optical filters to be slid right into a holder
that matches on any lens with out the necessity to purchase a filter for every lens dimension in your digital camera bag.
Having gained the Crimson Dot Design Award and iF Design awards this yr (and as an Amazon Greatest Vendor), the standard and development of Ok&F CONCEPT’s merchandise is top-notch. Acknowledged by these organizations signifies that the design and development of Ok&F CONCEPT’s filters are top-notch.
Ok&F CONCEPT additionally makes tripods, digital camera luggage, and different digital camera equipment, which can be discovered at Amazon, Ok&F CONCEPT, Kentfaith, B&H, and Adorama.
And not using a good complement of filters, it’s doable to make good photographs and movies, however with compromises in picture high quality and artistic outcomes. A great set of ND filters elevates drone images (pardon the pun) and permits for inventive compositions inconceivable with out them.