Tag-Archive for » lens «

Friday, January 15th, 2010 | Author: Martin

If you're new here, you may want to subscribe to my RSS feed. Thanks for visiting!

Yet another exciting week over at the RED HQ.

Already next week will see the first RED One cameras getting a sensoral facelift. The new sensor has better dynamic range, higher sensibilty (800 ISO as standard, usable even at 3200 ASA) and the new color science, named FLUT. The swap will also get your camera a new sensor board and a new (optical) low pass filter. A bit over USD 5.750 for the conversion ($1.250 will be refunded when you buy an Epic). Throw in an extra 3k, and you will get a RED Rocket for a bargain price.

Anamorphic, baby

Today RED announced that they will produce anamorphic lenses. Last year they rocked the glass world with their set of primes, where a set of lenses costs as much as you would previously have to pay for a single focal length. Now you have until the end of this year to save towards the 35mm, 50mm, 85mm and 100mm lenses; all at T2.4. A 25mm is probably also in the pipeline.

Tuesday, June 16th, 2009 | Author: Martin

At times the menu of the R1 can be a bit counter-intuitive, for example that phantom power is under System>Sound, while the recording level is placed at Video>Audio. Helpfully, Octamas from Switzerland has been publishing a visual guide of the Red 1 menu system, and they’ve just released their guide for still-warm Build 20.

Bits, pieces and links

And for inspiration, hop over to As the Dust settles, a documentary in progress about the amazing Burning Man Festival – all shot on RED. They have a lovely photo gallery.

If you ever need a manual for an old camera, check out IscanManuals. They charge a small fee.

Trying to hide in the open with your camera? LensCoats makes, well, lens coatings, for pretty much any make, including the Canon 1200mm beast:

http://www.vimeo.com/5187580

A quick fix around the gamma problem in QT and OSX.

Thursday, October 09th, 2008 | Author: Martin

Sam had some bad luck with his Canon 17-85mm lens, which retails for about 500 dollars. Rather than just throwing it away (or worse: selling it on eBay), he followed his inquisitive nature, and took the beast apart. Visit his post for more pictures.

Thursday, May 22nd, 2008 | Author: Martin

Found a great paper by Canon on lens theory, which also explains the common terminology used in lens construction. The paper also includes an extensive collection of graphs showing the optical resolution of all Canon lenses, both wide open and at F8.

Great resource if you have a Canon stills camera, or a Red One with the very soon forthcoming Birger mount (video link).

Sunday, April 13th, 2008 | Author: Martin

As a follow-up on my previous post, here is a bit more information about that truly mesmerizing Adobe research project, which proposes to build lenses that act as multiple lenses. This will enable the camera to take multiple pictures at once, shifting the job of setting focus from the Focus Puller to the post production process.

Take Several Shots at Once With multiple eyes—Adobe’s prototype has 19—the light-field camera is even more perceptive. Each of its lenses is faced with a prism set at a unique angle, so it can take 19 pictures simultaneously, with each capturing a different part of the scene in focus. Each image uses a piece of the sensor, so a 100-megapixel camera will yield 19 5.2-megapixel shots.

Fill in the Blanks But the process doesn’t stop there. Adobe software can analyze the 19 captured photos and from them generate thousands of intermediate images so that each shot seamlessly morphs into those adjacent. Then images are layered, like thin sections, producing a three-dimensional simulation of the scene in which every piece of it is in focus.

Paint in Your Focus Because a light-field photograph is dynamic—virtually three-dimensional—focus can be selectively painted in with a “focus brush,” allowing the photographer to bring details from both foreground and background into focus—something that’s currently impossible in a single photo. Or future online photo sites could let viewers manipulate a photo’s focus as they choose.

(Excerpt from PopSci.com.)

adobecamAs a former Focus Puller I find this very exciting, as the technology proposes to give the director so much more freedom in post. Ultimately, it will help to tell the story, and that is what camerawork should be all about. But also from a technical side, it appears that the age-old connection between aperture and depth-of-field ceases to exist. I can only begin to imagine the plethora of new creative uses this lens throws towards us camerapeople.

HD will feel like home movies

In stills photography, resolution has quickly increased from a mere 250.000 pixel to two-digit megapixels. The video world has been much more conservative. Until a few years back, there was only SD, which has about 1/4 megapixels. HD is just now starting to catch on, which delivers roughtly between 3/4 and under 2 megapixels. But already now, some camera producers are pushing forward with 2k and even higher resolutions. But my guess is that 4k will only the beginning.After having gotten used to DVD quality, old VHS films are almost painful to watch. Looks like the same will happen to HD in the not-too-far future…

Good for the ops

For an camera operator, the biggest handicap with the modern cameras are their viewfinders, which simply do not show all of the resolution that camera records. The Red One for example, shows the operator only a fraction of the total resolution. Which means that the operator can never be sure in critical focus situations. Now that Adobe Lens would relieve us from one worry.Now, for the career Focus Puller this does pose some trouble. That title might just fade out, and revert to “1st AC”. But I would suggest to learn more about the new workflows around digital acquisition, and I am sure there will always be enough work in the camera dep´t.

Sunday, April 13th, 2008 | Author: Martin

Nab is the yearly major event for anything connected with video/media production. I´ll make some wild(ish) guesses as to what might delect my fellow camera(wo)men

Sony / Panavision

It will be exciting to see how the big guys are going to react to the Red One camera. I would hope for an affordable 2k shoulder-mount camera, that supports higher frame rates, and has interchangeable lenses. Competitively priced against the Red. Sort of a Red light for ENG work.

Red

Red is a master of hype, and this NAB looks like Red might just steal the show again. They have announced 3 big and 3 minor news. With only a little bit of foundation, I will do some wild guessing as to what they might be

Majors
  1. A palm sized 4k camera. This has already been announced, but none of the details are out. I would imagine that it is either a slightly downsized Red One camera, meaning aimed at the professional market. Or it could just be a more consumer-friendly priced camera, something for the video enthusiast.
  2. 4k projector. Its been rumored a long time that Red would produce their own affordable solution for viewing 4k. With that in mind, it gives an extra layer to view the recently published Mythbuster video on Red.
  3. This is the most mysterious one. Some suggest a time-reversal machine. I would guess that it could have something to do with the handling/archival of digital files. Harddisks are unreliable for long-term storage, DLT a bit cumbersome. At the same time, lack of a good archival system for file-based cinematography has been holding its development back.
Minors
  1. Direct support for FCP, Avid, Premiere. Since Apple is not having a stand this year, we know that there won’t be a new Final Cut Pro/Studio coming out.
  2. Red One Build 16. Greater colours, higher frame rates. But a faster boot-up time will come at a later time.
  3. Optical viewfinder. PS Technik in Germany has already announced one, but wouldn’t it be great if Red had that option built-in?

The others

Will be interesting to see when other battery technologies become viable.There will be some new solutions for the tapeless workflow in post production.I guess also the tendency is that the workload shifts from the set to the post production. Adobe is just one of many players here, but they have come up with a very exciting concept around focus/depth of field:

Friday, November 30th, 2007 | Author: Martin

Cooke make great film lenses with a passion. Back in the early 90s I went to one of their presentations of a new set of lenses, and they are designed with everyone involved in film production taken care of. For the DP they offer great picture quality. For the AC they have about the clearest markings in the market, which makes it much easier getting the right focus. Very smooth running mechanics. And they take literally years to develop a new lens.

So it was with great satisfaction that I read today that Cooke are launching a set of 4 lenses specifically for the Red camera.

The Cooke RED Set includes: a Cooke S4/i 15-40mm, T2.0 CXX Zoom and Cooke S4/i 50mm, 75mm and 100mm, T2.0 Prime Lenses, a protective glass cover for the CXX Zoom lens and a rigid carry case to hold all four lenses.

The RED ONE camera is fully /i compatible and will communicate directly with Cooke S4/i lenses via special contacts in the camera’s lens mount. There is no need for additional equipment.

No mention about the prices, but I would imagine that they are worth every single penny (as they are made in the UK). For more info on the Cooke zoom, click here. More data on the primes here. UPDATE: looks like the set of lenses will go for just under USD 100k. Ouch! Looks like more of a rental option…

Reds out in the field

Geoff Boyle, British DP of cinematography.net fame, is currently shooting a feature film in 3D, where one of the 3 camera packages is a Red camera. His crew has experienced some difficulties with the camera, but because of its excellent quality, the camera has gotten a – very rare – second chance. That the camera gets good comments from a critical voice such as Geoff is (owner of an ARRI 435, if memory serves right), means something. Read his blog here.

Maybe our next camera will be a Red?

Saturday, November 24th, 2007 | Author: Martin

Anyone familiar with photography knows about f-stops. Calculated as Focal Length divided by Diameter (of the front lens element). The smaller the value of the f-stop, the more light passes the lens, the shorter exposure time necessary, the narrower the depth of field, the lower ASA/ISO rating necessary.

Typical f-stop values are f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22 and f/32, but there are lenses with f-stops as low as 1 and as high as 128. With the arrival of automatic exoposure meters, fractional f-stops have also become the norm.

T-Stop

When you start using professional film lenses, you will come across the phrase T-stop. While the f-stop is a mathematically derived value, the T-stop is a calibrated value. Since lenses have optical elements, and each of these elements blocks a (tiny) amount of light, the actual amount of light coming through a lens is always lower than the f-stop value suggests.

Therefore most cine lenses are individually calibrated to give the actual amount of light transmitted, the T-stop (T standing for Transmission.) T-stops are always (slightly) higher than f-stops.