Originally Posted by Dick Applebaum
I think you could possibly
see 2K-4K RAW processing on an iPad Pro... or even a small, headless, mobile companion iDevice with lots of SSD and RAM -- an iPhone/iPad (or other Camera) could provide capture capability. The companion device could be used with an iPad for storage and editing...
My granddaughter uses an iPad 2 as a storage/editing companion device to her new Canon 60D -- very useful on a recent trip to Canada.
Light Iron has written 2 iPad apps to help Video editors with dailies and playback.
iMovie on an iPad can do a decent job of a first cut edit in the field -- and is exportable to Final Cut for further post processing.
Well I sold a DSLR lens when I realized I wasn't my DSLR recently, and bought an iPhone 5s. I'll sell the DSLR body soon. That means that I'm all in on mobile photography for the foreseeable future.
iOS device RAW data is not available from Apple to developers, as far as I'm aware. I've also read that this may be a good thing because of the corrective processing that is needed to produce acceptable images. What is available is data that can easily be used to produce a TIFF file. On my iPhone 5s, the typical uncompressed TIFF file is around 20-22MB. That's a large file when you shoot on a regular basis. If LZW lossless compression is used, the file typically comes out to 7-8MB. As I'm sure that you can gather, for those of us working with TIFF, that compression is highly desirable.
Now here's the problem, from what I've read from developers. If there is not enough memory, a program will crash. For iOS devices with 1.0GB of DRAM, that limit is about 9MP to operate safely when is comes to LZW compression. The 9MP limit is usually not an issue because the rear camera is 8MP on a 5s. The limit is more than double without that compression.
LZW aside, there are still times when 1GB of DRAM is an issue. If several editing programs are open at once, every edit needs to be saved because the OS' memory management is more concerned with managing memory than preserving unsaved edits. That makes editing cumbersome.
Now lets say that you want to shoot in TIFF, and stitch together images. There are currently no stitching programs that I'm aware of that will save in TIFF. But if they did, as I understand it, LZW compression just wouldn't be feasible on an iOS device with 1GB of DRAM or less. Even if you don't care about LZW compression, good luck editing that 40MP image that you just stitched. There is just not enough DRAM.
So, for my needs, which are certainly in the minority, more DRAM would make life easier.
All of the above was based on my life with the 8MP sensor.
I don't know when, but I believe that Apple will go to 12.6 or 12.8 MP for the rear image sensors, which will increase the need for more DRAM. Why that many pixels? The pixel width for Digital Cinema Initiatives 4K video is 4,096 pixels. If that sensor is also going to be used for still photography, then a 1.33 aspect ratio, like that currently used by Apple, makes sense. That's 3,072 pixels high. That gets you 12.6 MP. If Apple wants to accommodate 4,096 x 3,112 for anamorphic cinema, then almost 12.8 MP is needed.
With 64 bit architecture, 4GB DRAM could be an option if Apple allows it to be. For me, the sooner the better. If the A8 chip even brings just 2GB of DRAM, I'll be content. 4 GB and I'll be thrilled!