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AF100 Storm Gathers

You can’t yet buy a new Panasonic AG-AF100 camera but already it is threatening to rain all over the great DSLR picnic.

And after taking out a pre-production engineering sample unit – one of a only a handful worldwide – here at  CREWS.TV we are beginning to think it won’t be a gentle shower that spoils the DSLR fun – it’s going to hose down.

Sure, nothing is certain, but here is why we are making this particular weather forecast.

Panasonic have grafted the advantages of DSLRs onto a proper video camera.

AF-100 CREWS evaluation

We are talking about a shallow depth of field, reminiscent of 35mm movie making and beloved by cinematographers. But the Panasonic AG-AF100 is a camera body that you can pick up with a couple of fingers and boasts a ticket price of only NZ$7,000 (say US$5,250).  It is due for  release by the end of 2010.

Unlike the DSLRs it aims to displace, this camera is not compromised by trying to be a good stills camera.

The Panasonic AG-AF100 conforms to Micro 4/3″ – pronounced ‘fourth thirds inch’ – specification of lens port and sensor size.  That doesn’t mean Panasonic flogged the sensor from their own Lumix GH1 4/3″ DSLR. A new sensor has been built for the job.

The 4/3″ consortium originally developed their specification to allow DSLR cameras to become more compact and enable faster more compact lenses to be used.

Sure enough, 4/3″ compact stills lenses will fit the camera, but they are so compact that focus pulling is going to be a problem, and with a simple third-party adaptor cine lenses will fit straight on the camera – much to the delight of focus pullers and cinematographers.

The camera’s 4/3″ single CMOS sensor is 17.3mm wide, while a full aperture movie frame is 25mm wide and a full frame DSLR frame is 36mm wide. Larger frame sizes give a shallower depth of field.

This gives the Panasonic AG-AF100 camera a lot shallower depth of field than a 2/3″ camera,  but it is not as shallow as 35mm movie and quite it is a lot less than a full frame DSLR.

That may be no bad thing, as keeping sharps on an actors eyes with wide open full frame DSLR lens can be a challenge, with the cost of missing focus being an unusable shot.

The camera has a menu structure with the usual HD video camera options – similar in style, content and feel to other Panasonic video cameras like the AG-HVX202A.

Cinematographer for the test, Matt Meikle, says he set the format to 1080/25p 1/50th shutter and didn’t delve into the setup so as to produce some baseline footage showing what the camera will do out of the box.

“It was a rapid kind of assessment without plugging in waveform monitors or setting a basic low gain structure within the camera. With the limited time available, a real world practical test was the priority,” he explains.

Meikle and Simard looking for detail shots on a hand held frame

Detail

“My first impression? It was an enjoyable experience putting Zeiss Ultraprimes on a camera that will be affordable to production companies yet offer much higher resolution and a better look than DSLRs.”

He says single-handed focus pulling was actually easier with sharper lenses that have a shallower depth of field because he could find focus rapidly by hand.

The results were sharp, with a more pleasing and natural focus drop off.

“Look at the detail in the handrails and skin tone definition.  And the highlights around the windows were pretty amazing.”

Meikle pushing the cold weather boundaries

Simard sets the scene

Because the camera is designed exclusively for video, the optical low pass filter is matched to resolution of the sensor also reducing moiré effects on texture detail.

“We were pretty impressed how the detail held over a whole bunch of different fabrics at the studio and different metallic objects that we had in frame,” reports Meikle.

“From what I saw the results were stunning. The level of individual hair detail, white on black and all those sort of things like the white bra with edging. The detail was incredible in the dark hair considering the gamma was set at mid-knee.”

Meanwhile, for sound recordist Nick Treacy the shoot was a low-key affair, with a wireless link on the camera feeding into dual XLR audio inputs just as you would expect on any professional video camera.

Nick Treacy

Sound ease being a key option for this camera

using a dual channel radio link to feed the audio

Recording Option

Next morning at the edit suite DoP Yves Simard, who directed the test shoot, sat down with the footage and compared the two codecs used to record the material with Simon Coldrick from The Bigger Picture, an Auckland edit post company.

It might seem odd to put expensive Ultraprimes on a camera that only offers AVCHD PH mode with a maximum of 24Mbps to SDHC or the new higher capacity SDXC memory cards, but this is a measure that helps keep the body price low. With an 8 bit HD-SDI output connector there is always the option of dual recording to a higher spec off board device.

On this shoot Panasonic offered an AG-HPG20 P2 Memory Card Portable Recorder with AVC-Intra 100, a unit that doubled as a handy director’s monitor.

After a session examining the footage Simard confirmed Meikle’s assessment.

“We’ve set up this camera to work with the best possible glass and the best possible recording. That was the test – is this camera worthy of the claims made about it?  To put it simply, for me this camera is everything the DSLR should have been.

“What I love about this camera is you have the ability to offer up an entire range of choices. So if you want to do a drama, this is far easier to interface with than any DSLR on the market. It works, acts and feels like a proper camera. The next step above this is the RED. So for people who want to achieve drama looks it’s not only done easily but done well.”

He admits that in the edit suite monitor the different between the onboard recording codec and high spec off board monitor is hard to spot.

Simon Coldrick from Bigger Picture checking out the first images of the AF-100

“But if you are going through all that effort you don’t want the weakest link to be the 24Mbps codec so you have to go with an off board option,” he says. “That’s where the DSLRs will always let you down. The look is great but it falls over when you try to grade it.”

With reduced a rolling shutter slew effect a benefit Panasonic holds out as an advantage over DSLRs optimised for still photography, Simard was eager to examine the footage containing vertical edged window frames and buildings.  True to the Panasonic claim the handheld footage and panning came out clean.

The shoot did encounter some technical bugs, but no-one seemed worried. As one crew member says: “This is Panasonic, they won’t let it happen in the production models.”

Certainly not when this is the chance to send the DSLR party running for shelter.

Download the full brochure here (posted dec 11, 2010)

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Peter Parnham is a freelance technology writer and chief editor of CREWS.TV

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The Zeiss Ultraprimes were kindly supplied by Andy Roelants of Auckland rental house, Metro Film.

Yves Simard is a working DOP in New Zealand, Australia & Asia.  Yves is also the founder of CREWS.TV.
Joe Lawry is a freelance cameraman and steadicam operator based in Auckland
Simon Coldrick is an editor with the The Bigger Picture post company in Auckland
Matt Meikle, based in Auckland is a Cinematographer & Camera Operator

This independent article was produced without any inducement or restrictions  from Panasonic, thanks guys.

Model Victoria Williams, Photographer/Videographer Michel Perrin