Saturday, December 31, 2016

My second to the last purchase of the year? Just an upgrade of my Zoom Hn4 to the Zoom H5 digital audio recorder...

There are several devices that I employ when I'm using microphones with XLR connectors. If the microphones have good, robust levels and I just need a connection, and possibly a way to reduce their levels, I'll use the little Beachtek D2a box. It's passive so it doesn't require batteries and it works with most of the microphones that don't need phantom power, or more pre-amplification than my cameras can handle. Ah, the vast nest of details involved in producing nice video...

For microphones that need phantom power, or those that just need a boost in the pre-amplifier stage in order to match the camera for less noise, I have been using the Tascam DR-60ii. It's a nice unit and has a plethora of features but it has an ungainly form factor and it eats double "A" batteries like candy...

My first digital audio recorder was the venerable Zoom Hn4 but it had one fatal flaw (as far as I was concerned) the only output available to my cameras was set up as a line out with a much higher level than most cameras could deal with as an input. Since I like getting the final sound into the camera this was a pain in butt. There is a workaround which calls on using an "attenuating" cable between the Zoom Hn4 and the camera which reduces the juice heading to the camera so as not to overload the camera inputs, but.....it's another speciality cable to buy and of which to keep track. And cable tracking is not one of my strengths.

I was able to pick up the Zoom H5 to replace the Hn4 and I was pleased to find the output to camera was fully menu-adjustable. There are also several other bonus features: Longer battery life, physical level controls which are separate for each channel, and much "cleaner" pre-amplifiers.

After using it for a couple of days I find it's just right. I like the way the files sound, it plays well with my Sony cameras (which is good because my primary use of the external audio recorders is as a pre-amplifier and XLR interface, NOT as a recorder). The difference in battery life between the Tascam and the H5 is striking. I'm on my first set of two double "A" batteries with the Zoom and I've run it a lot. The Tascam runs for about 3 hours (tops) on a set of four regular alkaline double "A" batteries. Ouch. Zoom suggest that I'll get around 15 hours of service from two batteries on the H5.

The one real benefit of the Tascam, and why I'll keep it around, is that when it's mounted under a camera I can easily see the control panel and screen. I'm still figuring out workarounds for the Zoom.

In one of those "hit and miss" sales on Amazon.com I was able to buy one for $219. last week. I looked again the next day and they had gone right back to $269.

Another good use of the Zoom H5 is when using the AT Dynamic, side address, narration microphone I bought last Summer. It needs both phantom power and a nice, strong pre-amplifier. The Zoom checks both boxes.

If you aren't shooting video I'm not sure you need one of these. I guess it would be nice to have if you are a musician. I like them because they have a high "gadget-to-price" ratio and I rationalize that I might do some wonderful recording with it in the future.

We are zeroing in on the New Year; I hope everyone is well and has safe and fun plans for this evening. To my friends and readers in Europe....HAPPY NEW YEAR!!! 😁

Friday, December 30, 2016

End of the year light purchases. A little upgrade in the LED division of VSL. Light Storm.


If there's one sector of photography that's changing as fast as camera technology (or faster) it's in the area of LED light engineering. The lights keep getting brighter and brighter while the color accuracy gets closer and closer to 100 CRI. There's a more modern standard for color accuracy that's being used in broadcast and that's TCLI. Here's a quick overview: TCLI

When I first started buying LED panels in 2009 they ranged in the 80-85 CRI range and I can imagine that they would have fared even worse in the new TCLI tests, which measure spikes and chasms of color response in these kinds of lighting instruments. The lights, at the time I wrote the book about LED lights for photographers, also put out much less light. We worked higher up the ISO scale and made other accommodations. 

Last year, and part of this year, I started buying what I call, new technology LEDs, in that they use SMD (surface mount device) technology which has yielded a much higher output. The first of these lights for me was the cute and cuddly Fiilex 360. But I soon augmented that lower powered light with a brace of RPS CooLED, 100 watt fixtures. They used a new SMD designed, dense, 1/1 inch LED that acted more like a traditional open-face lighting fixture and less like a panel. I liked that because I could use my soft boxes on those lights. While the color was better than previous generations it still required that I pay attention and make custom white balances and use caution mixing the "daylight" LEDs with actual daylight...

I'd heard rumors that the newest generation of lights were getting closer and closer to 100 CRI but it was only when my friend, James, a very color-picky cinematographer, bought the latest DraCast LED panel lights and started gushing about them that I sat up and took notice. I've spent the last week or so researching and what I finally landed on as the best compromise of price, color, output power and rugged build was the new line of lights from Aputure marketed under the name, Light Storm. And the products I liked best brought me back around, full circle, to the panel form factor.

With a fairly big video project looming, and an intense studio still life project just around the corner, I decided to improve my light inventory by getting a set of the Aputure Light Storm panels. It didn't hurt that I needed to buy and put a few more things into service in order to reduce my tax burden....

I ended up getting two of the LS-1s panels, which are very bright, and two of the LS-1/2 panels, which are smaller but only a stop less powerful. According to reputable sources, who have measured them with the latest Sekonic 700 series color meters, both of the units exceed 95 CRI and the smaller unit measures at 97+ CRI. We're well into the territory where the diffusion material you put in front of the lights makes more of a difference in color accuracy than anything else. They are color accurate plus they provide the punch I used to get from a 750 watt tungsten bulb in a decent, open-faced fixture. Hard to beat at the price. (They retail for $695). 

Each light is not exactly self-contained. They come in three "parts." The first is the light itself which is mounted in a sturdy yoke and has no controls or connections, other than a power cable. The cable connects to a control box which allows one to raise or lower the power of the lights in 90 discrete steps. Since the control box is separate you can put the actual panels up high and you'll have two benefits.  First, you move a good amount of the weight off the top of the stand, which makes the light and stand more stable. Secondly, you can adjust the intensity of the light without either bringing the light back down or standing on a step ladder. 

The controller will also allow you to mount up a V-lock battery. With these bigger, more robust batteries you should be able to get about an hour of full power lighting without having to look for a wall plug. That's great for remote locations but the cost of the batteries is atrocious. Ah well, there's rarely free lunch. 

Just downstream from the controller is a black, rectangular power supply. This plugs into the wall on one end and into the controller on the other. So you have three physical devices (light, controller, power block) as well as the interconnecting cables. A bit messy but manageable. 

One more interesting feature is the inclusion, with every light, of a wireless, 2.4G remote control. With the remote you can turn the lights on and off, and you can control the power settings. Great for changing ratios while you are at camera position; especially when the lights are hung up high. There are separate channels so you can control three different banks of lights from one remote. Interesting, but I still keep reaching for the controllers and enjoying the tactile reality of lighting control. 

The bigger light, the LS-1s, uses SMD LEDs but, like previous generations, hides them behind little plastic nubbins or clear lenses that create directionality (or micro focus) for each LED. The way the light is designed gives it a 20-25 degree light angle. It's got more throw that way. If you need a softer or wider beam you can easily put diffusion in front of the fixture. In fact, the maker provides an envelope with sheets of carefully selected diffusion to do just that. 

The LS 1/2 uses its SMD LEDs naked. The light emitting business end of each small "lamp" is right on the surface and the fixture uses nothing to focus the beams. The light seems exceptionally bright but it does cast a very wide spread of light. You'll either want to use them with big diffusion or as background lights. They have beautiful color but you'll need to practice what you learned working with Lowell Tota-Lights from the tungsten era in order to get the most out of them, vis-a-vis modifications. 

So, now that I've had a chance to play with them what's the bottom line assessment?

The color is so clean that this by itself means they've grabbed a spot as my preferred lighting tools. It's just so clean and perfect. The flesh tones require very little (usually none) work in PhotoShop and the power is quite welcome. Since the entire back of each lighting unit is one big, extruded heat sink I'm going to give them two thumbs up for engineering and (hopeful) reliability. 

The ones I bought are single color temperature models. They just do daylight. 5500 Kelvin daylight. I've had bi-color panels in the past and, while the color flexibility is great to have, you lose half the power since the flexibility comes from turning a daylight set of bulbs up while turning tungsten bulbs down, and vice versa. 

I bought four lights in total. Two big ones to use with diffusion as main lights and key lights and two of the half units to use to evenly (and widely) light backgrounds with direct (unmodified) lighting. They pack down smaller than the RPS lights and are smaller and lighter than the previous panels I owned. 
All-in-all it's cost effective package for around $2400. 

I've paid more for less...

Were I to persevere as a still photographer only I doubt I would have even considered the upgrade but one of my goals for 2017 is to drive the business toward a 50/50 split; photography and videography, and a set of Profoto strobes just won't hack the moving part of that equation. One more acquisition to write about before the end of the year. Stay tuned.

The Aputure Light Storm LS-1s fixture on the left, controller on the right.

A closer view of the controller, which also features DMX control.

Professional Limo connectors for a locking fit.

The 1/2 height model. Bright!!!



Tuesday, December 27, 2016

And now we start talking about audio for video. Yikes, there's a lot to learn.

The very first thing I taught Ben about audio for video was about PROXIMITY. The need to get the microphone into the physical sweet spot for which it was designed. Everything else about using microphones flows from there.

My first real experiences with professional audio happened when I was a creative director at Avanti Advertising and Design. We had a number of clients for whom radio was an important part of their marketing mix. We wrote a fair number of commercials; some very straightforward and some with valiant attempts at humor. The common denominator was either a person narrating or persons playing roles. Since radio commercials are staged and highly directed all the production work was done in a studio. We used a studio called, Tim Stanton Audio, and we relied on Tim Stanton's deep experience to pull off productions that ranged from simple to highly complex, multi-character, mini-shows.

Tim had a collection of microphones and he would select them the way a sommelier would select various wines to match with the different courses of a fine meal. Tim sat behind a giant sound board controlling levels, etc. while I directed the talent, which meant, asking them to read with a different inflection, more or less energy, and always with an eye on the stop watch so we could fit the read into the time constraints of the commercial. Fifteen, thirty, sixty and one hundred and twenty seconds.

I learned a fair amount. I learned from Tim that every room has its own acoustic character which can be controlled with sound absorbing materials and even thick blankets. I learned to watch the meters and not overload the inputs for the recording devices. I learned that multiple "takes" helped us narrow in on our creative "target" and I learned that (optimal) proximity of the person speaking to the microphone is everything.

We're currently living in a time when we have tons and tons of information at our fingertips and most of it is either too condensed to be worthwhile, factually wrong, or just too shallow in scope to be useful. A lot of the information is driven by marketing. I see a lot of ads for "shotgun" microphones where the videographer has the microphone mounted on his camera but the actors are across the room. Clearly, the marketing people never got the text about proximity.

The reason why many, many people are so happy with the sound they get from lavaliere microphones comes from how they are employed. No one sticks their lavaliere mic on the top of their camera, shoots from across a room and expects to get anything worthwhile. Everyone knows that the "lav" gets positioned on a talent's tie, shirt placket or collar at about 12 inches from the talent's mouth. There are other, more creative locations for lavs but they are all on the body and in close proximity to the talent's mouth. So, even with the least expensive of lavalieres we get decent sound. It's because we are using them correctly (usually).

The truth is that in many cases the sound from a decent shotgun style (hyper-cardioid) can be better than the sound from most lavalieres if it is positioned correctly. The bigger microphones seem to reproduce lower frequencies more accurately and many of the relatively inexpensive ($150-$300) shotgun mics have very decent responses through the frequencies.

The best place for shotgun microphones is just above or below the talent's mouth and about 18 inches away from them. The dance that sound people on movie and TV sets do is to aim the microphone at the actor from the correct distance while staying just out of the video frame. If you have a dedicated sound person they can put the shotgun microphone at the end of a boom pole and continually fine-tune the placement by compensating for the actor's movement. This maintains the level and sound quality. If you are working alone you'll need the client to restrict their movements but it's still important to get the microphone off the camera and close to the actor. If I'm shooting solo I take along a stout light stand and a special bracket that holds my boom pole. I get the actor on their mark and carefully position the microphone before we get started. If the shot calls for walking and talking I give up and put a wireless microphone on them. With a sound person along short walk-and-talks can still be handled with a shotgun microphone on a boom pole.

The bottom line, always, is proximity. Unless you need to be ultimately mobile....

If I am out snapshotting video (solo, all gear attached to camera, nothing scripted, no actors) and I think I'll want to catch audio or even grab an impromptu street interview for my own personal work I'll default to a microphone on camera. Generally the one I reach for is not a shotgun mic but a stereo cardioid (heart shaped front sound pick up pattern) model that I can put in the hotshoe of my camera.
I'll leave it on to record ambient sounds and general audio tone, for the most part. But every once in a while I'll find someone who I'd like to interview spontaneously.

The need to get decent sound always triggers an "alert" in my brain. The alert is... Proximity. I need to get that microphone, which is on top of the camera, as close to the interviewee as possible to get decent audio and to diminish the effect of background noise at any given location. The trick is to use the wide angle setting of your camera's lens and get in close to the person. If I can get into a zone about three feet away I have some assurance that the resulting audio with at least be usable.

While it seems like a shotgun mic would be just right for this they can be too focused and require too much effort to aim them. Again, if you have a helper you could take the microphone off camera and allow the sound person to aim it correctly... but we don't always have that luxury. In fact, if you are shooting for yourself you probably won't.

The microphone I've been using on the camera for the last few years is a Rode SVM, which stands for "Stereo Video Mic." It's not very long but it has two microphone capsules behind its wire screen. Used close in it has very good sound quality, and the stereo nature of it means that I can often stick two people in a tight frame and get good sound from both. It's probably not the best microphone for this kind of work but it's the one I thought I could afford at the time. It cost me about $200 and it's come in handy a number of times. (I'm linking to the current model as the one I have has been discontinued).

The quieter the environment the easier it is to use an "all purpose" microphone like this to get good results....as long as you get it close enough.

Along these lines; meaning run-and-gun video versus controlled video, I've come to also appreciate the standard "reporter's microphone." You've seen them forever on the news shows. It's the classic microphone that reporters stick in front of their faces to do their remote, location "stand ups" in front of the news cameras. When they interview the crooked politician or the man on the street they alternate pointing the microphone at their own mouth when asking questions and then aim it at the person they are interviewing when they answer (usually from about 12-18 inches away....). These microphones (reporter mics) are counter-intuitive for many people. It would seem that a shotgun microphone would be more useable because we have the idea that the shotguns zero in on what we point them towards. It would seem that a reporter microphone, with its omni-directional pick-up pattern would pick up EVERYTHING!

But being wise photographers we understand that sound and microphones are subject to the inverse square law and, that the closer we have the microphone to the source of the sound the quicker audio "falls off" as we increase the distance from the other sources of sound. If we get the microphone close to the subject then everything else is relatively further away and much quieter. This is how someone with a reporter's mic can get decent audio even when surrounded by screaming fans at the end of a sports competition or political rally. It's also why people have more luck a lot of the time with lavaliere microphones (which are generally omni-directional). The sources of the main audio is much, much closer than the distracting background sounds which quickly "fall off."

I like the way shotguns microphones sound. The can be very, very good. I have a case full. But we have come to love them because most commercial production is done in rooms insulated from air conditioning noise, with appliances turned off, with reflective surfaces covered and microphone to subject distances (and angles) optimized. This is where they shine. But they are not "Swiss Army Knives" of the sound world. I reach for my reporter's mic when I know we'll be moving fast and working in uncontrollable environments. If I'm not working on a tripod and don't have a hand free I default to something like the Rode SVM, on camera.

It's good to understand the how the environment and the use dictates the right microphone. As long as you remember the primary rule = proximity = you'll come away with cleaner and less distracting sound. Get close. Even in the studio getting close means less necessary gain and less noise.

So, next up let's talk about lavaliere microphones and I'll show you the two options I use.