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  • Posts

    • Yes, their raw image sensor data compression system. Do you know what intoPIX actually use inside the TicoRAW implementation? Discrete cosine transform (DCT) isn't a compression algorithm, it's just a mathematical transform (of a block of pixels into spatial frequency coefficients) that's particularly useful for 'natural image' compression systems. It doesn't compress the data (in fact it increases it, as the output coefficients are usually higher bit depth to maintain precision), just transforms it into a different representation. That makes it much easier to discard/downgrade the coefficient data afterwards while minimising the impact on image quality - how clever you are at doing that (and the subsequent lossless data compression) is basically what determines the compression efficiency (data reduction versus perceived quality) of the image compressor. DCT is far from being the only game in town though - there are other front-end transforms in use as part of image compression systems. But I agree it's very popular (for very good reasons) in natural image compressors.
    • As title asks - which is better of the two? I can’t find good tests comparing. Many of the new bodies sport these two sensors so I’d be curious which one produces the superior image for video. 
    • I really want to "own nothing and be happy" but I'm not sure about the second half of that sentence. 
    • I legitimately think that the consumers will eventually abandon any manufacturer that tries this. And, if they all try it together, I see a mass revolt against new models and perhaps even a movement to “older” cameras. 
    • I recently bought a new treadmill and was amazed that the high-end ones required a subscription model. I wouldn't be averse to buying a GX85 updated firmware, but to buy and re-buy the damned thing over and over again is ridiculous. Yet another reason to snap out of the specifications trance that everyone seems to be in and focus on making better videos, rather than making the same videos with better spec'd equipment.
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