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I sometimes hang out on mountainbike forums.

A user posts that despite a new chain and setting up their rear derailleur according to instructions gear-changes are clunky or the chain skips when applying power on the pedals.

The usual reply from the forum members is then to send a photo of the cassette since excessive wear there leads to these problems.

This used to clearly show that the user needed to replace their worn cassette too.

Lately these photos of cassettes can look all mangled. Like ML tried to “enhance” mountains or the back of an alligator or some other structure from nature on to the cassette.

This has to be a problem in all sorts of technical trouble-shooting.



I’d be curious to see this, could you link to some examples? Cheers.


I had a 12-speed cassette nearby so I photographed it several times (iPhone) and I can’t see any problems.

Is it possible you’re seeing compression artifacts from the forum software? Do you have an example?


They need to offer an option for a "raw" image as they used to be called --which were minimally processed and were not compressed.


The problem with phone raws is that either:

1. They're not raw, they're aligned and merged and denoised and sharpened just like this iPhone photo (they're just linear so you can adjust white balance and recover shadows, working with them the way you could a real raw file)

or

2. They look like total garbage, noisy as heck and horribly soft, because the sensors are tiny and the lenses are simultaneously limited by diffraction and refractive error.


The raw mode for these wouldn't be a single image. It would be a video with lots of low-quality frames. Then your "raw processing" would be deciding how to align and Marge the frames, which to drop...

I think the idea that raw is a 2d array of pixels is outdated by the way modern cameras, especially smartphone cameras work.


You could do that, but most raw processing software is not equipped to handle tile-based aligning and merging so nothing would support it...


For sure, and that is likely part of the reason that their "raw" options are a flattened image.


They just need to offer an option without aggressive processing, they don't need to try to make it competitive with dedicated cameras.


It does exist, it's option #2. It sucks.


Android does


iOS does


How do I get this? Sick of seeing oversaturated landscapes. Edit: why is this downvoted? honest question... I'm on iOS and didn't see anything in settings.


Some models of iPhones the "PROs"[1] support something they call "Pro Raw" which isn't actual RAW images: "Apple ProRAW combines the information of a standard RAW format along with iPhone image processing, which gives you more flexibility when editing the exposure, color, and white balance in your photo."

So it's better than JPEG but not as good as RAW.

Anyhow apparently Apple supports quasi raw at the system level but doesn't always get exposed to the user. but 3rd part apps can take advantage of this even for non "PRO" Apple telephones.

[1]https://support.apple.com/en-us/HT211965


If you’re serious about photography on iPhone you should get Halide.


Lots of details here. [1] Basically, things changed when Apple released the iPhone 12. Earlier phones have regular RAW, and later phones have ProRAW, which is processed. It sounds like you can still get access to the regular RAW files on newer phones, but it's not simple.

1: https://nocamerabag.com/blog/shoot-raw-iphone


Focusing on the wrong thing? That’s not a ML issue.




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