Showing posts with label pocket camera lens. Show all posts
Showing posts with label pocket camera lens. Show all posts

Tuesday, 6 August 2013

Accessories for the Blackmagic Pocket Camera


I thought it would be useful to take a look at some of the accessories that will be needed to make the camera ready to shoot. 
                      
First off batteries: When the camera was first announced many of us were extremely happy to see that Blackmagic implemented a removable, rechargeable battery. Better yet this battery was inexpensive, reliable and something you can pick up at any camera store. Blackmagic decided to go with Nikon’s EN-EL20 battery. They have there own version of this battery but most people will go with the cheaper Nikon EN-EL20. There is of course off brand versions of this battery available as well, in some cases for a cheaper price. As always make sure you choose a company that has been well reviewed when choosing off brand batteries. 
                        
Here is a link where you can purchase one of these batteries: EN-EL20

Blackmagic is claiming that you will get one hour of continuous recording time. Charging time will be around 1 hour and 15 minutes when the camera is off and approximately 2 hours when in use. This a welcomed improvement over the 2.5K BMCC which had a not removable built in battery with lousy operating times. .

Media:

The Pocket Camera will take standard SDHC and SDXC cards. This is fantastic but it’s important to keep in mind that  you will need fast cards as the camera will be recording to Apple ProRes 200mbps HQ 422 (RAW capability promised in a future firmware update). Blackmagic recommends 
class 10 cards at 45Mbps or 95Mbps. Even for ProRes I would recommend going with the 95Mbps cards and when RAW comes to the camera forsure going with the higher cards will be a necessity. Blackmagic on their site is claiming record times of 37 minutes to 64GB cards at 24fps. In the coming weeks I will be able to do some proper record time testing to different cards and see how accurate that number is. Also we don’t know yet if they will allow you to record at lower levels of ProRes. For example ProRes 422 or ProRes Lite. If it is anything like the BMCC we may be stuck at 220mbps HQ 422, which is fine by me.

                       

One thing when choosing cards. I recommend with going with a well known trusted brand like SanDisk or Panasonic for example. The reason I feel strongly about this is because some cheaper brands will often claim higher write speeds than their cards actually preform at. Also quality from card to card may vary when going with some discount brand cards. With the codec being used by the Pocket Camera it will be important to have good cards you can count on to keep up with the data stream being recorded.



Audio:

The Pocket Camera has one built in stereo microphone. This mic will be good for little else most likely then recording reference sound for syncing your secondary sound recording in post. Most people will use an additional mic or interface. The camera does have one mic input which consists of a 3.5mm mini jack input. Now if the BMCC camera is anything to go by, don’t expect amazing things out of the
 pre-amp in the Pocket Camera. The signal to noise ratio was quite horrendous on the BMCC. In this case you will need a decent interface with high quality pre-amps to get your audio into the camera if you are not recording sound separately. I recommend the Tascam DR-60D interface as a good solution.

                      

Benefits of using the DR-60D recorder.

-       The Pocket Camera can be attached to the top of DR-60D via a standard ¼ thread.

-       Two XLR inputs can be fed into the unit. These inputs also provide phantom power for mics which need it.

-       It uses standard SD cards to record to, which you will already have since it is the same media the camera takes.

-       The DR-60D will last about 3 hours on 4 double AA batteries.

-       It has the capability of also being a 4 track recorder.

-       Broadcast WAV coded

-       Built in slate feature which will send a tone to the camera and the card for easy syncing in post when lining up waveforms.


This is only one of many interfaces/pre-amps available. Also checkout some of the great solutions from JuicedLink They have a number of different devices that will help you record great audio.

                               


Lenses:

By far this will be the biggest and probably the most important topic covered in this post. The Pocket Camera uses a Micro Four Thirds mount to interface with it’s lenses. This mount offers some unique advantages when it comes to lens selection. The main one being that MFT mount can be adapted to almost any lens. Nikon, Canon, PL Mount and even C-Mount all can be utilized with the correct adaptor. Many people who are heavly invested in Canon and Nikon glass can still use their lenses on the Pocket Camera.
                        

First off lets take a look at the large selection of Micro Third Lenses available out there. These lenses have typically been cheaper in the past and offer some unique focal lengths, T and F stop choices that will really come in handy when shooting with the Pocket Camera. Let’s take a look at some of the most popular ones.

Panasonic Lumix Lenses: Pansonic MFT lenses offer great value for someone looking to start out with some inexpensive glass and get shooting. However their lenses aren’t the fastest out there they have a large selection of zooms and some decent primes as well. Check out the link below for their full line up.
                         
Olympus: Another good choice for inexpensive MFT lenses. They have some nice wide zooms to choose from as well as some decent primes. They are always easily attainable from most photography stores. Link
                   
     

Samyang and Rokinon: These two lines of lenses from the same company have some interesting choices for fast cheap MFT primes at some wide focal lengths that will really benefit the Pocket Camera. One thing to look out for is quality from lens to lens, make not be the same consistency you would expect from companies like Nikon and Canon. Link

                         

SLR Magic: The latest super star to hit the inexpensive, fast, super sharp lens market. This company has been making waves lately with their crazy fast primes.  Some MFT lenses boast T stops of 0.95! These lenses are also know for being very sharp and really inexpensiv. Great value. However build quality has been an issue with some of their lenses in the past. Link 

                         

Voigtlaender: This German company has become synonyms with great optics and great build quality. Despite having only a small selection of MFT primes, they are a company I would check out. They also have released an adapter for MFT bodies to use their wide range of VM mount lenses. These lenses are great, check out some of the reviews online. However they don’t come cheap. Link

                                 

So those are only a few of the Micro Four Third mount lenses available. However if you are invested in other lenses like Canon, Nikon or even PL. well you are only just an adapter away from being able to use your glass on the Pocket Camera.

Here is a list of some of the more popular adapters out there for you to use to attach your favorite glass.

For those using Nikon. Novoflex has a great adapter here with a built in aperture ring. Link

For those using Canon Redrock Micro has an adapter for MFT bodies. Link 

Here is a great PL Mount by 16x9 that’s built like a tank. Link 

Other lens consideration:

One of the most important things to keep in mind when selecting lenses for the Pocket Camera is the crop factor of this camera. The magnification is about 2.7 times. This is important because when trying to go wide or calculating depth of field your choices of lenses will be much different. These two charts below will illustrate the differences compared to other popular sensors and crop factors.

                   

                           

So you can easily see how when estimating field of view in the Pocket Camera you will have to choose a wider lens to achieve similar results as you would with an APS-C or a full frame sensor.

Below is a great field of view calculator from Abelcine. This will help you to compare how images will look using the Blackmagic compared to other cameras like the 5D Mark 3 when comparing the crop factor and field of view. 


The Metabones Speedbooster: The Blackmagic Pocket’s new best friend. A while back I did post about this incredible adapter from Metabones called the Speed Booster. Here is the link for those who are newto  this blog or curious regarding what the Speed Booster is all about. http://videoandaudiogear.blogspot.ca/2013/02/the-speed-booster-by-metabones-and-why.html

The Speed Booster will benefit the Pocket Camera in a couple of different ways.
First and for-most: The massive crop factor in the Pocket Camera will be less of an issue as the Speed Booster will make any lens’s field of view automatically wider.

                      

Secondly the Speed Booster automatically increases the amount of light coming into the lens, helping the camera in low light situations. If the 2.5K BMCC is anything to go by it will not be a super star in lowlight compared to camera’s like the Sony FS100 and Canon C300.

Here is a link where you can check the Speed Booster and learn more about this great little adapter that will you instantly double the focal length and F stop range of all your lenses in your kit. Link



Shoulder Supports/Rigs/Stabilizers

The Black Magic Pocket Camera is tiny, really tiny. It is about the same size a consumer point & shoot camera. Only slightly bigger than your smart phone and it weighs next to nothing. This can be a great thing but also a huge pain when shooting handheld. Because of the CMOS sensor in this camera there will be rolling shutter issues. How bad? Well that remains to be seen. If it is indeed the same sensor that is in the 2.5K BMCC then it is fairly prevalent. What is rolling shutter or the so called
“Jello Effect” Check out the link for a full explanation of the what rolling shutter is below.


In the meantime how do you combat it? While you can combat rolling shutter in a couple of different ways:
                    
-Point of contact. Giving your camera a point of contact with your body will help stabilize and minimize rolling shutter. For example a shoulder brace or even having a Loupe or viewfinder will help to stabilize it as it will be pressing against you. 

-Weighing it down. The heavier the camera is the smoother it will be when it moves. Adding weight your camera will force you to move slower and keep the camera more steady when panning. This could be with counter weights or even something a V mount battery. 

-Pan speed. All CMOS sensors by their design will suffer from rolling shutter to some extent. Some better than others, nice slow pans will help show less rolling shutters than fast whip pans.

Most standard 15mm rail shoulder mount systems will be easily adapted to the Pocket Camera. However here are couple examples of some dedicated rigs designed specifically for the Pocket Camera.

Shape, a Canadian company has a great little rig here: Link

               

Wooden Camera has a cool system here you should check out: Link

            
As the cameras get in the hands of more and more shooters you will see more creative rigs pop up. In the mean time the above are just some suggestions as to what is available for the camera. 

So hopefully this info was of some use to you. I will be updating this post as I find more a great accessories for the Blackmagic Pocket Camera. 






Wednesday, 17 April 2013

Blackmagic Pocket Camera: What we know so far.

Last week at NAB Blackmagic stunned the film world again by announcing two new cameras. A new 4K APS-C camera with global shutter for $4000 dollars and a smaller Micro Four Thirds pocket camera for $1000 dollars. Personally I am more excited about the pocket camera. This price point will be great for a lot of people looking to get great dynamic range without having to pay a big price. Plus the fact it has a micro four thirds active mount will be good for those people who have MFT lenses or those wishing to add other types of lenses using an adaptor. Adding Nikon, Canon or even PL mount lenses will be easy with the right adapter. It's still very early but Blackmagic is saying a delivery time of July is what we can expect and that it will be released most likely before the 4K camera. I haven't seen any footage yet but hopefully they will release some test footage soon. If Anyone has found any footage on the web please send me a link.

                    

In the mean time lets go through what we know about the camera and some of its features:


-It has 1920x180 resolution

-Apple 10-bit 422 200Mbps ProRes codec with the promise of lossless CinemaDNG codec that will be coming later with a firmware update.

-The sensor size is Super 16: Roughly (12.5x7.4mm)

-Frame Rates 23.98p, 24p, 25p, 29.97p, 30p

-Dynamic Range: 13 stops

-MFT (micro four thirds lens mount) which should give full aperture control to native lenses.

-Magnified focus for focus assist and peaking

-Removable storage is SDXC and SDHC cards. It can record in ProRes 50 minutes of footage on a 64Gb SDXC card

-Metadata: camera data and user data such as shot number, filenames and keywords

-Can output through HDMI without overlays for monitoring: Micro HDMI type D. HDMI Audio Output 2 channels 48 kHz and 24 bit

-3.5" LCD: 800 x 480 resolution

-2.5mm LANC control for controlling record, stop, focus and iris with active lenses

-3.5mm mic input

-3.5mm headphone jack

-0.7mm 12V power input

-Standard tripod mount top and bottom

-Computer Interface USB 2.0 mini B port for firmware updates

-Operating Temperatures 0° to 40° C (32° to 104° F)

-Humidity rating 0% to 90% non-condensing

-Removable battery: Rechargeable Lithium Ion Battery (EN-EL20) Battery Life: approx. 1 hour of continuous recording time. Charge Time: approx. 1 hour and 15 minutes when the camera is off and approximately 2 hours when in use. You can also use non Blackmagic batteries such as the easy to find and inexpensive Nikon EN-EL20 Rechargeable Li-ion Batteries. This is a big deal because on the 2.5k camera the battery was built in with lousy operating times.

-In the box you get: Blackmagic Pocket Cinema Camera, wrist strap, dust cap and 12V AC Adapter.
Plus, DVD (DaVinci Resolve Lite)

-Product Warranty 12 Month Limited Manufacturer's Warranty.

-Compatible operating systems are: Mac OS X 10.8 Mountain Lion or later Windows 7 or later

-Dimensions: 5.04 x 1.49 x 2.6 (128 x 38 x 66 mm)

-Weight: 12.52 oz (355 g)

So that's basically what we know so far. As for what the image looks like hopefully we will see some footage soon.