All posts by alisterchapman

Arizona Monsoon Chasing

Arizona Monsoon Thunderstorm

Not too many posts from me recently. Very busy, travelling all over the place, last week Hong Kong, this week Arizona. I’m in Arizona running a workshop for some students from Singapore Poly. We’re shooting some short video documentaries about the Arizona Monsoon thunderstorms. I’m also shooting lightning in HyperStereo with a pair of F3’s on a Hurricane 3D rig as well as some background footage with one of the new Sony NX-3D1E camcorders (brilliant little camera, review to follow). Last night we had some incredible storms and we are expecting more today.

Using a PC Tablet as a 3D Monitor

In my quest to make 3D more affordable for all I have been looking at ways of using DSLR’s. The major issue with DSLR’s is the lack of sync and this means monitoring is also tricky. A pair of DSLR’s can be brought into reasonable sync by using a split trigger cable to take a still photo with both cameras after you have started recording. This resets the cameras shutters and they will run in reasonable sync for a few minutes after taking the still photo.
The next problem is monitoring. One popular tool to use is Peter Wimmer’s Stereoscopic Multiplexer and Stereoscopic Player software on a PC, but even a laptop can be a bit bulky. So I decided to try a windows tablet. I chose the Archos 9 tablet, pre installed with Windows 7. You may be able to get this working on other tablets too. The Archos has a dual core Intel Atom CPU, but it still a little lacking in horse power so there is some lag in the display and a frame size limit of 640×480, but it’s OK for getting a rig reasonably well aligned and very portable. Here’s what you need to do to get it all going, these instruction would also work with a conventional PC:

THE MOST IMPORTANT BIT:

Get a pair of EZCAP.TV EzCap 116 USB 2.0 capture cards. IT MUST BE THE EzCAP 116. Do not buy the generic EasyCap models, many of them will not work in pairs, it must be the 116. I strongly recommend getting the full retail boxed version, barcode No X0002X5LGT. I paid £19.00 GBP each for the ones I am using.

EzCAP 116 USB 2.0 video capture. Supersedes EzCAP DC60+. World wide delivery.

New Ezcap USB 2.0 Video Capture Adapter for XP Vista 7 | eBay

You will also need the expansion port adapter for the Archos 9 (windows 7 version).

Here are the installation steps:

1: On a PC or other computer copy the entire contents of the install CD Rom that comes with the EzCap to a USB memory stick.

2: Insert the memory stick into the Archos (or other PC) and browse to it and double click on Autorun. First install the drivers. You should allow the PC to re-start after the install.

3: Again click on Autorun on the memory stick, now install Showbiz 3.5. You MUST install showbiz.

4: Go to 3dtv.at and download and install both Stereoscopic Multiplexer and Stereoscopic Player.

5: Unplug the memory stick and now plug in one of the EZCap devices to the USB port, connect a camera to the EzCap (in the case of a DSLR using the composite cable supplied with the DSLR. Windows should detect the EzCap and install the drivers, this can take quite some time, perhaps 10 minutes (go and have a coffee). If you get an unrecognised device error at this stage, ignore it.

6: Plug the second EzCap device into one of the ports on the Archos expansion box (you can’t plug them both into the expansion port or a USB hub, it won’t work, they must be on separate USB busses).

7: Run ArcSoft ShowBiz. When ShowBiz is running click on the capture tab. At the top of the capture window under “Source” select the first “USB 2861 Device” (may be labeled WDM 2861) Then set “Video Input” to “composite”. You should see the camera output on the screen. Now under “Source” select the second “USB 2861 Device” and select composite, now you should see the second cameras output.

8: Close the capture window and Quit ShowBiz.

9: Start Stereoscopic Multiplexer. The Configuration Wizard should start. For Left Capture device select the upper 2861 Device from the drop down list, for the right camera select the lower 2861 device. For both devices set the appropriate input standard, Pal-I for PAL and NTSC-M for NTSC. Click Next.

10: The maximum resolution the Archos 9 will support for two sources is 640×480 (Laptops should support full 720×576). Select this and then test that you can see each camera using the test left/right buttons. Check that 640×480 is selected before clicking next.

11: Go with the defaults on this page, just click next.

12: Again keep the presets on this last page and click finish.

13: After a few moments you should now see both cameras outputs, displayed side by side. Quit Stereoscopic Multiplexer.

14: Once Stereoscopic Multiplexer has been configured it should remember these settings so you should not need to set it up again.

15: Start Stereoscopic Player. Under “File” select “Live View” and “Stereoscopic Multiplexer”. You should now be seeing both cameras. By using the “View” menu you can choose how to view the images, on the Archos9 “colour Anaglyph” will be the most useful for alignment and “side by side” to check relative exposure and colour balance. Note that if using a mirror rig you can do a horizontal flip of either camera via the “View” menu.

There is some lag in the image display, but it’s useable for alignment and checking. Higher performance PC’s will give better results, but are not as portable.

Have fun!

 

Camrade CB Single III Camera Bag.

I was asked by my good friend Rene of Camrade to take a look at some of their new products. So over the next couple of weeks I’ll be looking at the CB Single III camera bag, the PMW F3 rain cover and a new PL lens adapter for the Sony FS100. First I’m going to take a look at the camera bag.

Camrade CB Single III

I’ve had Camrade bags before and they have always lasted well, standing up to the knocks and bumps that go along with lugging kit all over the place. I was in the market for a new bag for one of my PMW-F3’s, so I was sent the CB Single III bag. From the outside this is a functional looking bag with a large mesh pocket on one side and further external pockets on the other side and at one end. It has a nice well padded chunky carry strap that is comfortable to use.

Inside the Camrade CB Single III

The top of the bag opens up with a dual zipper system that gives you completely un hindered access to the bags interior. This is great for run and gun where you may need to quickly grab the camera from the bag and you don’t want to have to squeeze it out through a small opening. The interior of the bag has various dividers that are secured by velcro, so you can customise the layout to suit your needs. One of the dividers forms a clever storage box to one side of the bag. I’ve found this particularly useful with the F3 as I can safely store my Genus 4×4 Matte Box and a couple of DSLR lenses in here.

Opening the storage compartment shows moveable dividers

Then my batteries, other bits and bobs and the rain cover fit comfortably in the end compartments. This bag really works well with the F3 alloying you to get a complete basic shooting kit into one bag without the bag being too big or bulky.

It’s not perhaps the most fancy or sophisticated of bags, but in terms of practicality and functionality it works very well indeed. There is a strap in the main compartment to hold the camera secure if your really going to be bouncing it around. The base and sides of the bag are all semi ridged and have a good layer of shock absorbing foam in them. With one of these bags typically costing a very affordable $200 it really does represent good value for money.

My thanks to Rene for the sample bag. http://www.camrade.com/products-page/video/cambags/cb-single-iii1

In my next post I’ll look at the nice rain cover that Camrade make for the F3.

2/3″ Shoulder Mount Camcorders. The end of an era?

Are we seeing the decline of the one de-facto 2/3″ shoulder mount camcorder? I think we are. The reasons are many fold, cost, and bulk are certainly factors, but what about sensor size, I think it depends on which sector you work in but historically larger sensors have been desireable

In movies and features the desire has always been to produce a film, even with a very low budget that has the look and feel of a big budget movie that would typically have been shot with a large sensor, so in the movie world little has changed, the desire for a large sensor has always been there, although often not at the top of the list of priorities.

However in factual, documentary, soaps and other television genres there was not the big desire for shallow DoF. I started in TV in the 80’s. I used to shoot on S16, then 2/3″ video cameras. This was normal for me and being honest it never even occurred to me that a bigger sensor might open up additional possibilities. As far as I was concerned it was a technology that was just not available for the kind of TV programmes that I worked on. Some of this was cost driven, smaller budgets simply meant the use of Super 16, Beta, DigiBeta and DVCAM and here in the UK at least this was normal and perhaps the biggest wish was just to have the budget for a better 2/3″ camera with a less electronic image.

Certainly I was aware of devices like the Pro35, Letus and other ground glass systems that could be used to allow the use of 35mm lenses on 2/3″ cameras, but they were just not practical for factual television. I did dabble with them on corporates, but frankly they were more trouble than they were worth.

Then along came video capable DSLR’s. Suddenly there was a perception that you could hand a $1500 camera to the DoP and hey-presto your documentary would look like a movie, your equipment and transportation costs would be slashed and you could shoot just about anywhere without being noticed. Now while most production companies realised that a DSLR would be a poor choice for many projects and had a whole bunch of new issues, the noise generated by the DSLR community was deafening. There have been some very beautiful looking, high profile (or at least highly vocal) productions shot with them and the shallow DoF, crushed blacks, high contrast look became quite fashionable amongst younger shooters, especially media students as a DSLR is very affordable compared to most full size cameras, you can pick up the Canon 550D (T2i) for £500. Because of the low cost of DSLR’s many of our universities and colleges will use then to teach video production. Yes they might have a couple of old HDCAM’s that the students might get a couple of hours on from time to time, but very often the day to day course work is done with either DSLR’s or handy cams.

So now we have a new generation of programme makers that own cameras that can produce something with that filmic shallow DoF and low frame rate progressive motion (DSLR’s don’t do interlace) that really don’t cost a lot of money. This is the look that these youngsters will be familiar with and to them a 2/3″ or half inch, off the shelf camcorder looks like video, while the DSLR’s look much more like film. With budgets in factual and TV in general getting squeezed more and more many of these younger shooters will find themselves out in the field as principle camera operators very early on in their career, possibly straight from college.

Now we have cameras like the F3, FS100 and AF101 that straddle and blur the boundary between DSLR style shooting and handy cam shooting. You have handy cam ergonomics with DSLR DoF. Because of the improved sensitivity you can shoot with these cameras at smaller apertures if you don’t want shallow DoF. The missing link is decent workable zoom lenses. Abel Cine’s 2/3″ adapters are certainly one way to go and I know that there are cheaper alternatives on the horizon. So conceivably you could have one camera that could be used for general purpose productions by using a 2/3″ lens plus adapter and shooting at f8. Then when you want the filmic look for more controlled situations you swap lenses and stick on a fast PL or DSLR lens.

In the future I envisage there being a range of compact “slow” f4  servo zooms specifically made for super 35. In effect all it would need is for Fuji or Canon to replace the 2x extender in the back of a 2/3″ HD lens with a 2.5x extender and the projected image will fill the s35 frame. Bolt on a PL mount and away you go. These lenses should cost no more than a current 2/3″ zoom, but they won’t be f1.8, now they will be f4 -f5.6.

So is 2/3″ going to hang around forever? I’m not convinced. You only have to look at the impact that lower cost 1/2″ and 1/3″ sensor cameras have had on the 2/3″ market. Single chip cameras will get better and better and the cost will almost always be lower as there is no expensive prism. Large sensor cameras with the right lens could be much more versatile than small sensor cameras. As the need for ultra fast lenses diminishes through improvements in sensor sensitivity, producing smaller, wide range zooms for s35 will become easier and cheaper, but then when shallow DoF is your goal you retain the flexibility to swap to fast primes or more exotic zooms. In the studio having larger lenses on s35 studio cameras would not really be a problem and a studio equipped with s35 cameras could one day shoot a game show and the next be used to shoot a filmic drama. For news 1/2″ and 1/3″ handycams are already becoming common place. For factual there is now a great desire to move from the video look to more of a film look, so s35 may be the way forwards. For Natural History, the 1/2″ EX3 is often used with DSLR lenses for long lens work. For sports you could argue that 1/2″ OB style cameras might make a lot of sense as producing compact long focal length lenses would be easier. If the cameras are smaller and lighter then the truck needed to transport them also gets smaller and lighter and each camera takes up less space in the stadium.

Clearly 2/3″ is not going to suddenly disappear, there is far too much already invested in it globally. But it’s share of the market in my opinion will only ever get smaller and smaller.

PMW-F3, Run “n” Gun, is it worth the effort?

For me early Summer means airshow season and there are a couple of events that I shoot every year. The first is Flying Legends at the Imperial War Museum site at Duxford and features vintage aircraft predominantly from the second world war. The following weekend is the Royal International Air Tattoo, one of the largest military air shows and is all about the latest fast jets and military hardware. For the last 3 years I have been tasked with shooting aircraft being prepared for flight at both shows and for this I have been using a variety of cameras, but almost always some kind of ENG type camera. I’ve used PDW700’s, EX1’s and EX3’s. This year however it was decided to try and use one of my PMW-F3’s in order to take advantage of the shallow Depth of Field and give the footage a higher quality, filmic look.

Of course using the F3 for a shoot like this brings many challenges and one of the reasons for using it on these projects was to discover exactly whether the trade off between ease of use and shallow DoF was worth it. Thankfully, producer Steve Connor (flying machinestv.co.uk) is willing to let me try new things on his productions.

So how was it? Well it was hard work compared to running around with an EX1 or EX3. You have to check, check and double check focus all the time and this slows you down a little. The other thing is the lens. A camera like the EX1 has a 14x zoom lens giving a great range of focal lengths from a good wide angle to a nice long telephoto. With the F3 your lens choices are currently much more limited. While there are some very nice zooms like the Optimo 24-290mm (12x zoom) these just are not practical for run n gun. The Optimo weighs a whopping 24lbs/11kg . The other alternative to PL lenses is to use a DSLR lens. One of my favourites is the old Tokina AT-X Pro 28-70mm as this does not telescope, has a nice big focus scale and proper iris ring, but it’s only a 2.5x wide zoom, not much use for longer shots. The upshot of all this is that you end up doing a lot of lens swaps going from a wide zoom to a longer one (Sigma 70-300mm in my case). In addition the DSLR zooms are varifocal so you can’t zoom during the shot as the focus will shift.

So… I’m running around with the F3 and a rucksack with a couple of lenses and my favourite Vinten 100 tripod, swapping lenses many times for different shots. There’s no one-push auto iris confidence check, no image stabiliser and the batteries don’t last as long. As I said, compared to an EX1 it was hard work. But, I was able to be creative. It was easy to introduce some nice foreground or background soft focus objects. To do gentle pull focuses and to generally get good looking shots as opposed to just getting ordinary looking shots.

When an aircraft is started things can get very busy. There are spinning propellors to be aware of, or dangerous jet blasts (not to mention the noise). Aircraft can taxi with no warning. At these moments I was able to stop down the iris a bit to give myself greater depth of field for a little bit focus tolerance. This is what I like about the F3. It’s got sensitivity to spare so you can pick and choose how much DoF you have.

By the time the second airshow (RIAT) came around I realised that constant lens swapping was costing me shots. So for RIAT I used a Nikon 18-135mm zoom. This 7.5x zoom gave a much better focal length range, but its a rather nasty lens in so much as it’s f3.5 – f5.6 so the aperture changes as you zoom and it’s not particularly fast. It also telescopes and extends a lot as you zoom in, so you can’t use it with a matt box. The focus ring has no scale and iris has to controlled using the MTF adapter iris control. So all in all not my favourite lens, but for this particular shoot it worked out quite well. One thing that did become apparent is that not having a super fast lens, on this particular type of project was not an issue. I could still get reasonable shallow DoF shots when wide and at f3.5. At longer focal lengths the DoF decreases anyway, so shooting at f4 or f5.6 still yields pleasing results.

The footage from the shoots does look good. It has a much nicer look to it than conventional ENG video. The shallow DoF adds a quality feel to the material. While I didn’t shoot as much as I would have done with a more traditional camcorder due to the extra time required for lens changes, focus checking and the need to use the tripod more often, what I did shoot looked better overall so a higher percentage of what I shot will probably make it into the final production.

So as for my original question.. was it worth the effort? Well I think the answer is yes. The F3 can be used for run n gun, but it’s hard work, however the results are worth the extra effort.

New Firmware for EX1R – v1.2 with Forward Planning MetaData.

Sony have released a firmware update for the EX1R. This includes a couple of minor bug fixes and introduces forward planning metadata capabilities to the EX1R. The PDW-700/F800 XDCAM HD camcorders have had forward planning metadata for some time now and the F3’s new firmware also allows for it’s use. It’s designed to allow the user the ability to upload clip naming data and other data to the camera quickly and easily prior to shooting by copying the metadata to an SxS card.

Clip names

User-specified characters can be displayed (MP4/AVI).

Planning metadata

Shooting with planning metadata is possible. • Planning metadata can be read from recording media inserted into a memory card slot. • The planning metadata to be read can be selected.

• Clip names based on names defined in planning metadata can be specified.

• Clip names can be specified in languages other than English.

• More shot marks can be added.

• Shot mark names can be specified in languages other than English.

• Shooting information can be reflected in planning metadata.

• Information contained in planning metadata can be viewed.

Picture cache recording

When recording was performed in picture cache mode (picture cache time: 13 to 15 seconds) with i.LINK output, the cache data in memory was sometimes not recorded. That problem was corrected.

Click Here to go to the download page. There are also minor updates for the EX1 and EX3 released June 11th 2011 with some extra SxS card compatibility added.

 

 

It’s airshow season!

Fitting a mini-cam in a Raphael Jet Fighter

I have not had a chance to post much recently as I have been busy shooting airshows. The last couple of weeks have seen me shooting “run and gun” with an F3 at the Flying Legends air display at Duxford and the Royal International Air Tattoo at Fairford. The weather was on and off at both events and as well as shooting the aircraft from the ground I also fitted one of the minicams. In the next few days I’m going to write about how I found using the F3 for Run and Gun. It’s doable, but not ideal and lens choice is critical! Also coming soon a couple of reviews of some Camrade gear, a PMW-F3 rain cover and bag.

Free Play with a 3D Rig opportunity, London, July 20th.

I’m running a “Play with a 3D rig” session at the Phoenix Artists Club in central London between 12.30 pm and 6 pm on July 20th. This will be an opportunity to come and have a go with a Hurricane Rig and hopefully other related equipment. It is completely free and open to all. There will be discount prices on the rigs for those that attend as well as a free prize draw. It’s all free and if there is enough demand I will run a brief introduction to 3D workshop between 3pm and 4pm. Please fill out the registration form if you wish to join us. http://www.hurricane-rig.com/play-with-a-rig-london/