Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
Main Photography Discussion
That special "something".
Page <prev 2 of 7 next> last>>
Jan 16, 2021 07:42:39   #
cameraf4 Loc: Delaware
 
R.G. wrote:
Your expression "getting out of the way” requires some defining. I suspect that what's being referred to in this and the first thread is something that's NOT being lost, as opposed to something that the camera adds. "Getting out of the way" would therefore be a reference to not losing whatever the X factor (or factors) happens to be.

From what I've read in the above link, micro contrast is something that will be there until it's lost, which is why lenses with a low element count give better micro contrast. I suspect that speculation about what's not being lost could be fruitful.
Your expression "getting out of the way” requ... (show quote)


Probably too early in the morning for me to get immersed in such technical threads (this one and the one it eludes to), but I read the article cmc linked us to and I have a question. In the "How to see it" section of the article it seems to imply that if one takes a photo --- converts it to a B&W image --- then converts it back to color, the resulting image "will showcase a large variety of tones of each color."

First, if one does this, does it mean that the resulting color image will show a marked improvement over the original?

Second, if that is the case, since I have zero experience changing my images to B&W, how specifically would I make these 2 conversions? If there a "software of choice" that does this best?

Reply
Jan 16, 2021 07:46:39   #
SonyBug
 
R.G. wrote:
In a recent thread (HERE) we were discussing the possibility that flagship cameras produce images that have a special, elusive quality to them. However, in that thread there wasn't much discussion about what that elusive "something" might be. Perhaps the followers of that thread were wary of suggesting specifics. That's understandable, given the elusive nature of what was being discussed. In this thread I'm willing to offer my own suggestions and I invite further discussion and specific suggestions.

Some of the possible ingredients of that special "something" might be:-

Clean blacks and shadows. By "clean" I mean smooth and noise-free. Noise is present throughout the whole range of brightness but it's more noticeable in the darks. Noise is added by the camera and it doesn't have anything to do with the reality that was captured, so its presence is a reminder of the un-reality of the photo.

Robust highlights. By "robust" I don't just mean bright, I mean vivid in the sense of being contrasty and having strong colours. A lack of contrast affects all levels of brightness but the wishy-washy look that it causes is more noticeable in the brights. The same can be said for a lack of colour strength. A wishy-washy look may in some cases be desired, but when it's not specifically wanted it's a negative as far as image quality is concerned, and it's another reminder of the un-reality of the photo. Another factor may be that since the bright areas of a photo tend to draw the eye, weak colours or a lack of contrast will be more noticeable in those areas.

Sharpness where it's needed. Most photos don't need to be pin sharp from front to back but the simple fact is that a lack of sharpness where it's expected is a negative as far as image quality is concerned. Sharpness is another factor that draws the eye, so if there's a specific subject in a shot it's important for that subject to be sufficiently sharp. Usually that means making the subject the sharpest part of the photo. That will usually be true even in cases where the intention is for the shot to have an overall softness. If maximum sharpness is to be found somewhere other than on the main subject it will be a negative as far as drawing the viewer's eye is concerned, and in most cases it will make it harder to discern the photographer's intent.

Contrast, saturation, sharpness and noise can all be worked on in post processing. However, the simple fact is that in most cases it would have been better if the contrast, saturation, sharpness and smoothness had not been lost in the first place. There's always a limit to how convincing repair jobs can be, even if you have expert level PP skills.

So there you have it . IMO the ideal camera/lens combo is one that gives good contrast and saturation (particularly in the brights), doesn't introduce noise (particularly in the darks) and provides a sufficient level of sharpness.

Some might also want to include colour accuracy. However, I would say that the eye is fairly tolerant of errant colours and unwanted colour casts so in general terms it's not a critical factor unless the colour errors are extreme. For that reason I would say that while colour accuracy is often an important factor for professional photographers, it's not part of that special "something" that flagship cameras have, especially since colour accuracy is not exclusive to flagship cameras. (To that I could add that if anybody wants to discuss colour science, perhaps they should start their own thread).
In a recent thread url=https://www.uglyhedgehog.c... (show quote)


There was a post a year or so ago that discussed the quality of the lens and output in detail. Mostly the composition of the glass affected the picture. If I remember, Leica was at the head of the field for glass due to the lead I think. Anyway, we cannot forget the glass in this conversations.

Reply
Jan 16, 2021 07:50:17   #
R.G. Loc: Scotland
 
cameraf4 wrote:
....it seems to imply that if one takes a photo --- converts it to a B&W image --- then converts it back to color, the resulting image "will showcase a large variety of tones of each color.".....


I think the article referred to using the B&W version to demonstrate one of the characteristics of micro contrast, then with that information in mind, returned to the original colour version and described what the referred-to characteristic means in terms of the original shot. Going from B&W to colour in reality would just mean returning to the colour original (unless you were REALLY fond of colourisation ).

Reply
 
 
Jan 16, 2021 07:55:00   #
selmslie Loc: Fernandina Beach, FL, USA
 
R.G. wrote:
According to the poster of the original post he did some research and claims he could detect the quality he was alluding to in specific cameras regardless of what glass was used. Nobody's suggesting that lenses aren't a major factor, but the suggestion in the original thread is that the cameras are an undeniable (but indefinable) factor.

The only way to compare two bodies is to eliminate the lens as a factor by using the same lens on both bodies. That't not always practical as we have already seen where the comparison was attempted using three different lenses and two different formats.

You also need to apply the same basic post processing, preferably none.

You then might be able to compare dynamic range performance and noise suppression.

But the remaining differences will be difficult to quantify - a host of very elusive qualities that are mostly subjective.

Reply
Jan 16, 2021 07:56:20   #
R.G. Loc: Scotland
 
SonyBug wrote:
....we cannot forget the glass in this conversations.


Indeed. However, while acknowledging that the glass is a major factor, we're also not going to ignore the possibility that there is an as yet unrecognised aspect of the flagship cameras that is responsible for that "something special" (that so far we haven't succeeded in pinning down with a clear definition). But don't let the lack of concrete conclusions put you off considering the possibilities .

Reply
Jan 16, 2021 07:56:45   #
cmc4214 Loc: S.W. Pennsylvania
 
cameraf4 wrote:
Probably too early in the morning for me to get immersed in such technical threads (this one and the one it eludes to), but I read the article cmc linked us to and I have a question. In the "How to see it" section of the article it seems to imply that if one takes a photo --- converts it to a B&W image --- then converts it back to color, the resulting image "will showcase a large variety of tones of each color."

First, if one does this, does it mean that the resulting color image will show a marked improvement over the original?

Second, if that is the case, since I have zero experience changing my images to B&W, how specifically would I make these 2 conversions? If there a "software of choice" that does this best?
Probably too early in the morning for me to get im... (show quote)


I believe step #5 is for observation (I don't believe it meant that you had to convert to B&W, and then back to color to get the best image), this is to help you "see" it.

Reply
Jan 16, 2021 08:01:06   #
R.G. Loc: Scotland
 
selmslie wrote:
.....the remaining differences will be difficult to quantify - a host of very elusive qualities that are mostly subjective.


I think we'd have to admit that the original premise of the original thread was anything but scientifically based. My guess is it'll probably stay that way for the foreseeable future and we'll carry on referring to indefinable somethings and elusive qualities .

Having said that, improved contrast does seem to be a recurring theme where the optics, the cameras and post processing are concerned.

There may be others........

Reply
 
 
Jan 16, 2021 08:09:38   #
selmslie Loc: Fernandina Beach, FL, USA
 
R.G. wrote:
I think we'd have to admit that the original premise of the original thread was anything but scientifically based. My guess is it'll probably stay that way for the foreseeable future and we'll carry on referring to indefinable somethings and elusive qualities .

Some are not so elusive - price, weight, ergonomics, available lenses and accessories, reliability ...

Reply
Jan 16, 2021 08:12:44   #
R.G. Loc: Scotland
 
selmslie wrote:
Some are not so elusive - price, weight, ergonomics, available lenses and accessories, reliability ...


The original thread referred specifically to the indefinable qualities of the images that those cameras produced. The OP of that thread claimed to have done a bit of research and noticed differences as a recurring theme, and those differences were apparently independent of the lenses that were used.

Reply
Jan 16, 2021 08:56:17   #
Orphoto Loc: Oregon
 
I'm thinking the above link and its related articles need to be considered with a large quantity of salt. Just because someone's opinions are put down in writing does not make them accurate or compelling.

Reply
Jan 16, 2021 08:57:39   #
bleirer
 
cameraf4 wrote:
Probably too early in the morning for me to get immersed in such technical threads (this one and the one it eludes to), but I read the article cmc linked us to and I have a question. In the "How to see it" section of the article it seems to imply that if one takes a photo --- converts it to a B&W image --- then converts it back to color, the resulting image "will showcase a large variety of tones of each color."

First, if one does this, does it mean that the resulting color image will show a marked improvement over the original?

Second, if that is the case, since I have zero experience changing my images to B&W, how specifically would I make these 2 conversions? If there a "software of choice" that does this best?
Probably too early in the morning for me to get im... (show quote)


I guess that depends on what one means by 'conversion' but no, no improvement in the resulting color. If you convert by dropping down a picture style menu to choose monochrome then go back and choose standard, there is no magic there. Same if you slide saturation to zero. When you slide it back it is the same as when you started.

Reply
 
 
Jan 16, 2021 09:05:41   #
bleirer
 
User ID wrote:
Right. Only “as discussed so far”.

Thus far, your opening post is the dominant body of thought. I take no exception to any part of it, and acoarst you posted it to attract more input beyond your own. (So let’s do that !)

I find your parts 1 and 2 (of 3) could combine under “dynamic range”. Part 3 is about the quality of the image while it’s still strictly optical, before the sensor does what sensors do (not ignoring all the electronics beyond the sensor).

So, it seems we hafta form a really good image and give it a great reception (digitize it optimally). With anything less, the special something cannot happen. Yet the conditions that allow the special something only *allow* it. They don’t creat it, don’t guarantee that it will be evident in every image.

It seems to me that there are many intangibles involved. And I do NOT mean the variables of camera use or user’s technical know-how. Optimal camera handling and user technical skill are already assumed. I mean situational intangibles, not controllable variables.

I strongly suspect that the special something derives from a nontechnical user input or influence. The finest sports gear will not make a duffer into a great athlete. But such gear has a great enabling role. It “gets out of the way” of those athletes who bring a special something to their sport.

Many observers associate the classic M-Leicas with “The Special Something”. Yet they use the same film as any other box, and the lenses on them are not always outstanding. But the classic Leica is really great at “getting out of the way”. Acoarst that same Leica is totally “in the way”, a real major obstacle to success, in the hands of the wrong user.
Right. Only “as discussed so far”. br br Thus far... (show quote)


If you looked at the linked article, is 'micro contrast' actually a thing in optics? Or was it this bloggers attempt at defining other measurable optical characteristics? It was a new term for me.

Personally I read the link and the follow up article, and I honestly didn't see the difference the author said was so prominent. You?

Made me think. Aren't all the 'presence' sliders in lightroom frequency separated 'micro' contrast?

Reply
Jan 16, 2021 09:10:18   #
Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)
 
R.G. wrote:
In a recent thread (HERE) we were discussing the possibility that flagship cameras produce images that have a special, elusive quality to them. However, in that thread there wasn't much discussion about what that elusive "something" might be. Perhaps the followers of that thread were wary of suggesting specifics. That's understandable, given the elusive nature of what was being discussed. In this thread I'm willing to offer my own suggestions and I invite further discussion and specific suggestions.

Some of the possible ingredients of that special "something" might be:-

Clean blacks and shadows. By "clean" I mean smooth and noise-free. Noise is present throughout the whole range of brightness but it's more noticeable in the darks. Noise is added by the camera and it doesn't have anything to do with the reality that was captured, so its presence is a reminder of the un-reality of the photo.

Robust highlights. By "robust" I don't just mean bright, I mean vivid in the sense of being contrasty and having strong colours. A lack of contrast affects all levels of brightness but the wishy-washy look that it causes is more noticeable in the brights. The same can be said for a lack of colour strength. A wishy-washy look may in some cases be desired, but when it's not specifically wanted it's a negative as far as image quality is concerned, and it's another reminder of the un-reality of the photo. Another factor may be that since the bright areas of a photo tend to draw the eye, weak colours or a lack of contrast will be more noticeable in those areas.

Sharpness where it's needed. Most photos don't need to be pin sharp from front to back but the simple fact is that a lack of sharpness where it's expected is a negative as far as image quality is concerned. Sharpness is another factor that draws the eye, so if there's a specific subject in a shot it's important for that subject to be sufficiently sharp. Usually that means making the subject the sharpest part of the photo. That will usually be true even in cases where the intention is for the shot to have an overall softness. If maximum sharpness is to be found somewhere other than on the main subject it will be a negative as far as drawing the viewer's eye is concerned, and in most cases it will make it harder to discern the photographer's intent.

Contrast, saturation, sharpness and noise can all be worked on in post processing. However, the simple fact is that in most cases it would have been better if the contrast, saturation, sharpness and smoothness had not been lost in the first place. There's always a limit to how convincing repair jobs can be, even if you have expert level PP skills.

So there you have it . IMO the ideal camera/lens combo is one that gives good contrast and saturation (particularly in the brights), doesn't introduce noise (particularly in the darks) and provides a sufficient level of sharpness.

Some might also want to include colour accuracy. However, I would say that the eye is fairly tolerant of errant colours and unwanted colour casts so in general terms it's not a critical factor unless the colour errors are extreme. For that reason I would say that while colour accuracy is often an important factor for professional photographers, it's not part of that special "something" that flagship cameras have, especially since colour accuracy is not exclusive to flagship cameras. (To that I could add that if anybody wants to discuss colour science, perhaps they should start their own thread).
In a recent thread url=https://www.uglyhedgehog.c... (show quote)



Reply
Jan 16, 2021 09:42:43   #
R.G. Loc: Scotland
 
bleirer wrote:
If you looked at the linked article, is 'micro contrast' actually a thing in optics?.....


I got the impression it's what contrast and colour strength look like before they get diluted in a multi-element lens.

That leaves you with the job of having to recover them somehow. In-camera processing or post processing can restore some things to a certain extent, but it's usually better if you didn't lose them in the first place. The colour gradations referred to in the article would fall into that category - the recovered, post processed version will not be as good or as convincing as the original. To my mind that doesn't point to some magical property of a lens - it's just a way of describing what some other lenses lose in the quest for sharpness at ultra-high levels of resolution.

It would be interesting to see where the expression "micro contrast" comes from. Micro contrast is what I would expect the Structure or Texture slider to give you, but that's not what that article describes. However, I have seen more than one article use that expression.

Reply
Jan 16, 2021 09:43:01   #
R.G. Loc: Scotland
 
Gene51 wrote:


Thanks.

Reply
Page <prev 2 of 7 next> last>>
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.
Main Photography Discussion
UglyHedgehog.com - Forum
Copyright 2011-2024 Ugly Hedgehog, Inc.