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Replies: 14 / Views: 1,767 |
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Pillar of the Community

United States
4038 Posts |
Has anyone tried Technicolor's Cinestyle? It supposedly increases the camera dynamic range. I've started testing it out, but haven't really come to any conclusions on use in coin photography. Would love to hear if anyone else has tried it and what your thoughts are.
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Pillar of the Community
United States
4132 Posts |
I have not tried it, but I don't see how it could make any difference if you're shooting RAW stills. Seems like a pretty nice tool for shooting video though.
I have experimented briefly with bracketing and doing HDR to get more dynamic range on some particularly brilliant coins, but I haven't got a keeper shot from those experiments yet.
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Pillar of the Community
  United States
4038 Posts |
RAW is not really "raw". A "style" is always applied and affects the interpretation and processing of the sensor data. I don't know the details of exactly what Cinestyle does (there is a description on the Technicolor site) but it clearly modifies contrast and gamma fairly dramatically, yet has no effect on the histogram or user-defined gamma curve.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com
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Pillar of the Community
United States
4132 Posts |
RAW really is RAW; the image data isn't even demosaiced, let alone had a color profile applied. It just has some additional metadata attached saying what the camera settings were when the picture was taken. When you load it in some sort of RAW reading program (DPP, Adobe Camera Raw, etc.), that metadata is applied automatically. Half the point of RAW is that the original sensor data is preserved and interpreted at the latest possible stage (the other half is the extra bit-depth and dynamic range).
So if, for example, you took a shot with the white balance set to "tungsten" and then later change it to "daylight" or whatever in DPP, it will give you the exact same result as if you had set it to "daylight" in the first place (assuming the camera didn't somehow change the aperture, ISO or shutter speed as a consequence of changing the white balance settings). The same is true of other settings (in-camera sharpening, color profile, etc.)
Color profiles and whatnot only get baked into the actual pixel data if you're shooting JPEG or video. My understanding is that the Cinestyle profile is intended to give a color curve that gives an editor the maximum amount of wiggle-room possible in the 8-bit video format. That's basically the point of a non-linear gamma in 8-bit files in the first place, although Cinestyle surely does a better job than ordinary sRGB at distributing those bits usefully. RAW already gives you the maximum wiggle-room possible with the sensor and A/D converters in the hardware.
So, if you're shooting RAW, you should be able to get the identical effect by choosing the Cinestyle profile in DPP after shooting. The only difference would be if a change in exposure settings came along for the ride with the profile (e.g. it intentionally underexposes to avoid blowing highlights).
The camera settings (color profile, etc.) ARE applied to a preview JPEG which is embedded in the RAW file, and that's used for the thumbnails, previews and histograms by some software.
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Moderator
 United States
23522 Posts |
Rather than let software decide what's right for you, just shoot an HDR stack of 3 RAW files. I've been meaning to try that on lustrous silver.
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Pillar of the Community
  United States
4038 Posts |
My point was that you can't view a RAW file, so you are always beholden to a "style" to interpret the raw data, and that style applies color or levels info to the data as part of the display process. So what you see is not really RAW, but an interpretation of the raw data.
Interestingly, the Cinestyle profile is not available in DPP unless the shot was made with it. There may be some way to access it but it seems the profile is somehow embedded into the file as metadata for that shot.
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Pillar of the Community
United States
4132 Posts |
Sorry, I guess I misunderstood what you were getting at. Weird that they don't let you choose the profile in post - since they're supposedly working with Canon on the thing you'd think they'd add it as a plugin for DPP or something. You might be able to get something similar by just cranking the contrast way down and playing with the curves (e.g. taking a picture with and without the profile, then matching them and saving a preset). But I guess the Cinestyle profile is really meant for final output; it's just to preserve as much dynamic range as possible so an editor can work with the video without having to worry about shadows or highlights having been blown out by the camera's processing.
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Pillar of the Community
  United States
4038 Posts |
It's not clear to me how styles work with RAW format. I took two images of a Cent: one with Standard style 0,0,0,0; and the second with Cinestyle 0,0,0,0. When viewing the files in DPP, they look very different, yet the histograms, gamma curve, etc all look identical. Outputting them to jpg results in what I saw on the screen, now of course with very different looking histograms. It seems there is another set of factors being applied to the RAW data that are not shown in DPP yet have a profound impact on the output. This alters the "starting point" when editing the RAW file yet there is no indication of the different starting point within the editor. What's going on here?
Photobucket seems to be down at the moment. I'll upload the two photos once I get access to my albums...Ray
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Pillar of the Community
United States
3076 Posts |
YOU GUYS are horrible....hehehehe...just when we think we are catching on with what you guys are teaching, you bring up a new medium.....Taking a breath... what ever the new style is...coin shooting is still a very """specific""" application....ITS not HD OR TV, coin shooting is still...down and dirty "Depth of field" and its millimeters if not even smaller measurements... so spill your guts guys on what this is all about...and what it means to us old glass shooters....
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Pillar of the Community
  United States
4038 Posts |
OK, Photobucket is done with maintenance... Here is the coin shot with Standard 0,0,0,0  And here it is shot with Cinestyle 0,0,0,0  The two shots showed the exact same histogram, gamma curve, and levels settings in DPP yet when output to jpg have a very different appearance.
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Pillar of the Community
United States
4132 Posts |
I assume the histograms look the same with other styles (Neutral, Portrait, etc.)... Do the histograms change while you're adjusting settings (contrast, etc.) in DPP? Do they look different if you take the picture in JPEG instead of RAW? My guess is that it displays a histogram that is built sometime before the style is applied (i.e. it's a histogram of the input, not the output.) It just takes the raw pixel data and plots it on some arbitrary, generic gamma curve scale. Either that, or it's just after the data is demosaiced. It might even be a histogram that the camera sticks in the RAW file. *shrug*
Honestly, I haven't really used DPP much at all. I am so used to working in Photoshop that I just got used to using an Adobe Bridge -> Camera Raw -> Photoshop workflow without giving DPP much of a chance.
Camera Raw just ignores the in-camera selected styles. It applies its own "Adobe Standard" style by default and various default settings for things like sharpening, though it lets you select "Camera Standard", "Camera Neutral", "Camera Portrait", etc. I assume these are actually just approximations of the Canon styles (and a Nikon shooter might have different options - I don't really know). I think the only setting it keeps is white balance. It defaults to an option of "As Shot", which matches whatever I selected in-camera, but offers its own presets for Tungsten, Fluorescent, "Auto", etc. or a custom temperature setting which can be set by sampling a neutral part of the image or with sliders.
If I loaded two otherwise identical images taken with different styles they would show identical histograms in ACR, but they would also look identical because it would apply "Adobe Standard" to them. If I selected different styles in ACR, it would show different histograms, and the histograms change if I adjust any settings.
Edited by CaptainFwiffo 08/23/2012 10:21 am
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Pillar of the Community
  United States
4038 Posts |
The RAW histogram is static in DPP. I assume the histogram represents the raw sensor data. As you change the various settings for levels, gamma, etc the histogram remains static, but the program applies gamma curve, black threshold, and white threshold as overlays. The "style" seems to act as an invisible overlay that shows up only on the output RGB histogram but no information about what the style is actually doing shows up in the RAW editing tab.
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Pillar of the Community
United States
1064 Posts |
rmpsrpms, just curious; which of your two shots is more faithful, does one look more like the coin you actually have in hand?
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Pillar of the Community
  United States
4038 Posts |
JB...As displayed above, the Standard photo is a much better representation, but both photos are essentially unprocessed and need adjustment before I'd be satisfied with them. The question I have isn't if the unprocessed output is more faithful, but does the applied "style" make any difference to the final output, or make it easier to get to the desired final output? I don't yet have an answer for this. Cinestyle seems to apply an aggressive non-linear gamma curve as an "invisible" overlay, and I am still evaluating to see if that overlay makes it easier to get to an acceptable final output versus the other available styles. What I am thinking at this point is that these "styles" are capable of applying an overlay that may not be possible to reproduce (or compensate for) with the limited adjustments offered in standard editing tools. Certainly a simple tool like DPP doesn't offer this level of adjustment, and I don't believe any of the Adobe products do either. The "style" seems to be a method to allow complex overlays for particular purposes. I need to do more research on this...Ray
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Pillar of the Community
United States
4132 Posts |
ACR (or Lightroom or Photoshop) would almost certainly let you get this degree of adjustment. You can adjust the exposure, contrast, etc. to a point where none of the shadows or highlights are clipping, then create an arbitrarily complex curve for each channel. Getting a close match for the Cinestyle profile might take some effort, but it's definitely possible.
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Replies: 14 / Views: 1,767 |
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