Last Friday saw the release of Version 2.0 firmware for the Sony PMW-F5 and F55 Large Single Sensor cine cameras. The new firmware brings many enhancements such as higher frame rates, ‘scopes in the EVF, and 2K XAVC (disclosure: Art Adams and I have been playing with beta versions for a while; Art’s just shot two projects Read More
Proper exposure in HD is not always easy. Meter readings don’t always match what the camera sees. Zebras tell us where highlights are clipped but that’s about it. False color gives us broad stroke references… but the most useful tool overall is the waveform monitor. The problem is that there are two kinds: both are extremely useful, but for completely different things.
One of the dirty little secrets of the film industry is that, historically, no one has made a truly neutral ND filter. In theory ND filters cut all visible light equally, but the sad reality is that they all shift color a bit. Some go a bit cool, some turn magenta… they all tend to shift in one direction or another depending on the brand. A company by the name of Mitomo claims to have made a perfectly neutral ND filter that also cuts IR on every camera made. This is a spectacular claim and I was naturally skeptical when I first heard of this product. There’s only way to find out if this is true, so read on…
Focus is a huge issue in anamorphic, and everyone on the camera crew has to wrap their heads around which focal length lens does what. For example, in spherical cinematography a 50mm lens delivers a “normal” perspective, but in anamorphic the closest to this is the 80mm. The reason for this is that each anamorphic lens is really two lenses in one: it’s 80mm tall but 40mm wide, for a 2:1 squeeze. A spherical 40mm lens isn’t all that long and focus isn’t that big a deal in the horizontal axis, but the addition of an 80mm lens to the vertical axis cuts depth of field in half. A 40mm spherical lens has reasonable depth of field, but add an 80mm lens into that mix and suddenly you have to pay a LOT of attention just to make sure medium shots are in focus.
Over the past few years, many companies have brought to market lens mount adapters. Some of these adapters are simply machined rings that allow for one type of lens’ flanges to fit onto another manufacturer’s camera body. Most of these simple adapters work very well for the most part. Often you will run into a Read More
Resolution is a double-edged sword. It makes our pictures clearer, more useful, and helps make them as “future-proof” as possible. But it also puts significant demand on our hardware systems in terms of processing power and storage. At NAB 2013, the floor was buzzing with talk of 4k and even 8k resolution workflows, essentially handling Read More
This article was originally published on Tim Dashwood’s blog and is reprinted here with his kind permission. The Hobbit has finally been released in 2D and 3D at the traditional 24 frames per second (fps) as well as 3D High Frame Rate (HFR) at 48 fps. If the posts on social media are a fair Read More
This white paper is provided to DV Info Net courtesy of Sofradir EC, Inc., formerly Electrophysics, a leading developer of advanced high performance infrared cameras, portable thermography systems and advanced night vision imaging solutions. It’s been remarkable to witness the evolution of the SLR camera, first as a sophisticated film camera, and now as a Read More
Note: This article was originally published by Alister Chapmanand is reprinted here with his kind permission. The graph to the left shows an idealised, normal gamma curve for a video production chain. The main thing to observe is that the curve is in fact pretty close to a straight line (actual gamma curves are very Read More
Canon Inc. shows working Ultra-High Definition concept pieces including compact 4K video cameras, an 8K broadcast UHD television lens and 2K and 4K video display monitors at their quinquennial Canon Expo 2010 event this week in New York. Canon Inc., parent company of Canon USA and headquartered in Tokyo, is demonstrating several examples of Ultra-High Read More