Penelope Delta's choice of a Bayer pattern CCD distinguishes it from Arri and Red (Bayer CMOS) and from the Panavision Genesis and Sony F35 (RGB CCD). Practically speaking, it will be interesting to compare the different cameras' dynamic range, noise levels and rolling shutter effect. Aaton is claiming very low noise, even at 3200 ISO, with high gain. The Aaton CCD is built by Dalsa. In terms of latitude, Aaton, Arri and Red are all promising 13 stops or more.
Penelope-∆'s announced dual sensitivity of 800 and 100 ISO addresses a practical problem of many cinematographers who must use ND filters and close down the iris when shooting outside, dimming the optical viewfinder. There is no information however as to how this sensitivity reduction is achieved.
The Penelope-Delta will simultaneously record two file formats onboard in the digital magazine: uncompressed RAW at up to 800 MB/second in a DPX wrapper, and compressed dailies in Avid's DNxHD format, in the low-res 36MB/sec flavor, or in higher quality 10 bit.
Both the Penelope-∆ and the Alexa will offer compressed dailies ready for editing in the camera. This is a brilliant idea, and a big time-saver: just copy the files on to the edit system, and you can start editing. The only sticking point is to ensure real compatibility of DNxHD (Aaton & Avid) or ProRes (Arri & Final Cut Pro) with the other editing system. We should add that some filmmakers may opt to use the compressed footage as their "master" (for HD and TV finish in particular).
Aaton is known for its handheld ergonomics, and the Penelope Delta promises to continue the tradition of "the cat on the shoulder", with a fast start-up time of 4 seconds that is important for documentary work.
The Penelope-∆ will be a self-contained Raw recording unit. There should be no need for an external or add-on Raw recording device, as both the uncompressed Raw signal and the compressed dailies are recorded in the mag. The Raw signal is announced to be in a DPX wrapper, although details are still vague as to what workflow that entails, presumably it involves deBayering, and the DeltaPak is said to be "Codex Lab compatible".
There is also no precise pixel count given for the image, just that the Penelope Delta will be 4K or more -- like the Epic. The Alexa, by contrast, is designed for a 2K output, a resolution similar to the Genesis and F35.
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