Showing posts with label Glidecam. Show all posts
Showing posts with label Glidecam. Show all posts

Wednesday, September 23, 2015

Tokina 11-16mm Lens Review

Your always looking for that next beautiful landscape shot, or the perfect astrophotography time lapse, but what the lens do you have by your side to capture these amazing scenes. While there are so many options and each lens have it's perks, there is not one perfect lens for any given scenario. It is up to you as the operator to compose the picture how you see fit. however, I recently picked up the Tokina 11-16mm for landscape and time lapse photography due to the amazing wide angle it provided, because I think in this type of photography this is going to help you gather the most interesting shots available.

(Due to uploading to blogger, the quality is quite poor.)
                 (Captured with the Sony a7s with the Tokina 11-16mm and Glidecam HD 4000)

This past Sunday I took to the football field to gather some B-roll of the stadium, I put together this teaser as a test video of the footage gathered. All material is shot in 60FPS conformed in post.

In the first shot you can see one huge problem right off the bat. The lens flare. While I love a good lens flare, it can be a bit much sometimes. I had no lens hood on while I shot because I was observing the flares and how they compared to my other lenses. But it would be interesting to see how it worked against preventing them. One interesting effect that occurs due to the full frame sensor, is that when completely wide at 11mm a picture will result like this.


The huge vignette is quite unflattering thus making the lens primarily fixed at 16mm. The great
APC-S feature of the camera turns this 11-16mm into a 17-24mm which is a handy trick to get a bit more punch as well as helps with the vignetting.

The football teaser above also demonstrates the issue with the ND filter. Due to the sunny weather we had this past Sunday, the ND was necessary to be able to shoot at an appropriate F-stop. The filter is variable up to 8 stops, but getting close to 6 is when the black streak in the top right corner of the image occurs, in some images it is more noticeable, but is very noticeable in the time lapse below.


While those two issues occurred in the video, the lens overall is very useful. First off the field of view is amazing. Paired with the full frame, even when punched in to the 17-24 APS-C mode, the lens is so wide and if you want that extra wideness, the 16mm is more than useable, however filters do come in to frame so indoors might be the best option for that. But this wide lens is great to make your shot extra smooth with the Glidecam, as well as capturing a a large canvas with time lapse. 


(The vertical capability is also a feature which needs exploring.)

A feature I neglected to touch upon until this point is the speed of this lens. With f2.8, this is amazing for night time photography. I've been meaning to test out the low light monster that is the a7s, combined with this lens, because I think it would have amazing results. Now just to get to somewhere that lacks light pollution. 


The final picture is one testing long exposure with the ND filter. While in the corners, the vignette is present, the ability to do a 30 sec exposure really made the water quite milky. 
Overall, testing new gear is stressful but enjoyable and you learn that ever piece of equipment has its pros and cons. In the end you just have to decide what you want to put up with more and if its worth the resulting image.

Tuesday, September 15, 2015

A Revolutionary Gimbal For Now

As filmmakers we are always trying to get the shot no one else can get, the smoothest footage, the money shot. Recently, numerous 3-axis gimbal stabilizers have been released which have thought to be the replacement of the Steadicam. While there is a lot of controversy about this topic, a new piece of equipment has been released that might throw all we know about stabilizers out the window.


As you see in the video, Sachtler has combined the brilliant gimbal benefits, that are available through use of devices like the DJI Ronin and the Movi, and the steadicam, which has long been the go to method of tracking shots. The movie "Goodfellas" has a historic tacking sequence all thanks to our beloved steadicam. This amazing idea provides a whole new style of filmmaking. As mentioned in the video above one shot that has been created through this system is being able to peak around corners with the camera. This could be great for giving a shot the feeling that someone is watching a character in a film. Being able to invert the camera as well makes this tool that much more versatile. Low angle shots were not attainable with former steadicams. Due to this item being brand new, there are limited visuals of real world applications so far, but by combining both of these amazing stabilization systems, the world of filmmaking just got a little crazier.

(GlideCam)

Having used the DJI Ronin quite extensively, as well as owning a Glidecam, I have experience advantages and disadvantages of both systems. First off the Ronin is electric and must be calibrated for the specific weight load that it is carrying. This is frustrating because with my Glidecam and many other traditional Steadicams, all weight adjustments are done through physical weight distribution adjustments. With my Glidecam the weight distribution does not have to be perfect either to still get a smooth shot, this is great for run and gun when you can't always count on a motor holding up for the entire shoot. The motor also is very susceptible to the cold due to the intricate mechanics of the system.

The Ronin however does trump the Glidecam in certain ways though. Getting low angle shots is extremely hard when the weights on the bottom of your Glidecam are hitting the ground. The Ronin is great for these types of shots because you are almost using your body as a crane and you can control the height of the Ronin to a much more specific point. The motor of the ronin, while running haywire occasionally, does however help with any bumpy steps you are taking as well.

Sachtler having combined these two amazing tools is really on to something. As mentioned earlier a new age of filmmaking with emerge from this system, but it is also costs about 15,800 Euros at the moment and the price truly makes it a professional piece of equipment. I previously thought the Movi would be the top stabilizer in the industry for sometime, however this industry changes faster than you can adjust and I'm sure this currently revolutionary equipment will soon be outdated and the bigger and better stabilizer will be running the streets soon.

Monday, December 10, 2012

Glidecam HD-2000

  This past month I was given the opportunity to use a Glidecam HD-2000 camera stabilizers to mount my camera and shoot handheld.  I just wanted to explain some tips I learned while using the stabilizer and talk about my experience.

  The Glidecam was suggested to me by one of my friends who owns one because he said it would aid in stabilizing shots and take out natural shakiness of simply shooting handheld.  I took his advice and he allowed me to borrow his Glidecam.  Upon first getting the Glidecam I had to recalibrate the stand for my own camera.  I found that since I only have a zoom lens for my DSLR I needed to extend the lengthen the main rod in order to counter balance the extra weight of my camera(this could also be achieved by adding extra weight to the stabilizers and keeping the stand the same weight, however it would make the rig heavier and more difficult to use).  After that I had to calibrate the rig to perfectly balance my camera so the rig would stay right side up.

  Once I finished calibrating I began to practice.  To properly use a Glidecam you must use two hands.  One hand to hold the handle which holds the majority of the rigs weight, and the other hand to lightly and delicately hold the main rod of the rig and point the camera.  After an extreme amount of practicing I went out to the shoot and used the rig.  I can honestly say that the camera not only increased perceived  the production value of the project, it substantially improved the quality of the work by allowing for fluid movements unattainable using simply a handheld camera.  Although our film encompassed both Glidcam and handheld shots (depending on motivation) I personally enjoyed watching back the shots taken on the Glidecam substantially more.  After using the Glidecam for only a short time I am convinced that this tool may be worth the investment in order to improve the quality of my projects.