Etiquette, expectations, entitlement...
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Show posts MenuQuote from: mlrocks on August 03, 2021, 06:37:22 AM
Thanks for the reply, MASC. Probably this auto ETTR + dual ISO is more useful for landscape than for street videography or portrait.
Quote from: NightlyMattya22 on March 17, 2021, 12:46:33 PM
But wouldnt there be a lag?
Quote from: NightlyMattya22 on March 17, 2021, 12:46:33 PM
if I am right, simultaniously outputs two different set of amplified signals to proccess. I assume that is what Canon is doing?
Quote from: a1ex on January 10, 2014, 12:11:01 PM
Any recommended reading?
http://theory.uchicago.edu/~ejm/pix/20d/tests/noise/index.html
http://www.clarkvision.com/articles/evaluation-canon-5diii/index.html (main site: http://www.clarkvision.com/articles/ )
http://www.dxomark.com/About/In-depth-measurements/Measurements/ISO-sensitivity
2 lines of image signal at ISO xx
next 2 lines of image signal at ISO yy
next 2 lines of image signal at ISO xx
next 2 lines of image signal at ISO yy
next 2 lines of image signal at ISO xx
next 2 lines of image signal at ISO yy
etc...
etc...
Quote from: Walter Schulz on February 20, 2021, 05:31:04 PM
Any other method than firmware update to make it run won't be covered.
QuoteThat is of course after it has been licensed from Rockwell and Langlotz. Rockwell is encouraging those interested in the feature to contact Canon, Nikon, Sony, and Fujifilm directly and ask for this feature, and has provided Langlotz's contact information that can be sent to these companies as part of that request.
QuoteRockwell explains using a 100-400mm lens as an example. He says that in this particular example, a camera would shoot normally (full-frame) from the 100-300mm range of that lens but as the photographer approaches the 400mm end, the camera would intelligently apply an APS-C crop until the full zoom length is reached, effectively turning the final zoom into 800mm.
Quote from: Kharak on February 20, 2021, 12:22:40 PM
Why not crop in post?
Quote from: a1ex on February 02, 2021, 08:53:12 AM
The best way to deal with these issues, in my opinion, would be with some kind of gamut compression - but you'd have to carefully choose a suitable color space for that. In particular, I can tell you for sure that CIELAB is not the right color space for this purpose (long answer in the links shared earlier).
Quote2) Let's say you have a highly saturated red color which the HDR Blu-Ray has encoded with 4,000 Nits. And your display actually *can* do 4,000 Nits. No problems, right? Actually yes, BIG problem, because the display peak Nits capability is for white, not for red. So what should a tone mapping algorithm do now? Should it make the pixel white? It could achieve the wanted 4,000 Nits, but the pixel's color/saturation would be completely lost. Or should the tone mapping maintain the full saturation/color, and lose all the Nits it can't handle? Then a significant amout of highlight punch & detail would get lost. So what should we do? In madVR you can choose. See option "fix too bright & saturated pixels by".
QuotemadVR's tone mapping works like this: If you actually tell madVR the proper peak Nits value that you measure your display as, all the pixels in the lower Nits range (ideally from 0-100 Nits) are displayed absolutely perfectly, in the same way a true 10,000 Nits display would show them. Tone mapping only starts somewhere above this lower Nits range. However, we can't simply jump abruptly from 0 compression to strong compression, so the tone mapping curve needs to start smoothly, otherwise the image would get a somewhat unnatural clipped look.
Quote from: Lars Steenhoff on October 29, 2016, 12:04:45 PM
If we can assign lens focal length and name for non cpu lenses, ( like using nikon lenses on a canon with an adapter) then I can use this data in post processing to identify what lens was used and which lens profile I should apply for distortion correction.
Quote from: mk11174 on April 11, 2016, 03:10:19 PM
I was trying to film dogs catching Frizbee the other day, and was thinking, I wonder if there's a way to add a buffer record to Raw_Rec module, like have it record to buffer but not to file for the certain amount of frames the user chooses as a buffer, then when the action you want happens, you press the shutter and it records the buffer to video file?
Quote from: a1ex on January 10, 2014, 12:11:01 PM
Just a small improvement in dynamic range in photo mode (around 0.3...0.50.8 stops). We were able to fine-tune the amplifier gains in order to squeeze a little more highlight detail.
Quote from: Danne on January 25, 2021, 06:02:15 PM
No need for regulating anything.
Quote from: Danne on January 25, 2021, 02:26:36 PM
Fully possible to change Subject:(check my title above) while posting another lua dilemma within the same post,
Quote from: Danne on January 25, 2021, 02:26:36 PMIf a lua issue were to be handled over time and "fixed" and worked upon, single posts would be great, but that´s not really what´s going on here. More like lua urges on a strictly personal level and only person with answers is a1ex atm.
Quote from: Danne on January 25, 2021, 02:26:36 PM
Keeping all at one place would be easier for others looking for lua answers, and in this case, mostly still image related.
Quote from: Danne on January 25, 2021, 02:26:36 PM
Also seems more community friendly if the author owns a deepened post and then he can pass answers to future lua "noobs" and contribute himself pointing to the coming mega lua post.
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