Showing posts with label A7s. Show all posts
Showing posts with label A7s. 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.

Thursday, September 10, 2015

It's Not the Camera...

The common questions that is raised among student filmmakers is, "What camera did you use?" While each camera has it's own perk, the Phantom with amazing variable frame rates, the RED with insane resolution reaching up to 8K, or even the A7s with its outstanding low light capabilities, it all really comes down to the operator. Its proven every day on Instagram that you can produce beautiful images with an Iphone or Go Pro. But there have also been plenty of bad movies shot on high level cinema cameras as well.


Above is a video created by DigitalRev that shows filmmaker Philip Bloom create a very unique piece of work with just the camera that comes in a specialized Barbie doll. If you have the chance to watch it please do, it is quite amusing and the results will amaze you. Below is the trailer to a recent Sundance film that was shot completely on the Iphone 5s and has been one of the most talked about movies to come out of the festival.

These are just two real world examples of how the camera really doesn't matter when it comes to story. Films are about relaying a message. Even though I would love to shoot pretty Bokeh images all day long, the fact of the matter is viewership comes from how well the story is told. Only the film students in the audience will be thinking about what camera and lens the DP used, the rest of the audience will be focused on what is happening in the universe that is being created before their eyes.

Composition of shots and the technical precision of the camera work will be noticed in film only when done badly. But when done right, these factors drive the film. Blown out windows is commonly a jarring feature of a movie and the most common mistake among students is breaking the 180 degree rule. But both a RED and a Iphone can break this universal rule.

We are no longer in the age of film where every shot literally costed money. With digital media you can shoot for hours on end for no extra cost, and this has created a shift in the way filmmakers work. Any yahoo can operate a camera but doing it well is another story. 3 hours worth of bad footage will never trump the longed for 1 minute tracking shot. We are sacrificing quantity for quality and students are the number one culprit. We need to get back to focusing on how the technology we have available to us can add to the story rather than focusing on what certain cameras can and cannot do. Will 4k really make your movie better? Or is it just being used because thats what "The Hobbit" shot in? Story is the center of cinema, the camera is what relays that story, they are two separate factors that combine to make a masterpiece, but only when sculpted together with the right hands.