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Archive 2015 · Interesting Reference Data on Dynamic Range - 5dsr

  
 
mttran
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p.5 #1 · Interesting Reference Data on Dynamic Range - 5dsr


mttran wrote:
DR is the only variable that senses the base noise and the only indicator to show how well the sensor and underneath IC can swallow one BIG data without choking. The lesser the noise the silky image will be. When we talk about image quality, that is the ONLY best measurement for your wallet. Of course everything else matter as well but all depend on your requirements.

Wider DR cam yields huge saving time for both handheld and tripod shooters to collect BIG data, period. We can run around the circle to debate whatever to make our image better but
...Show more

+1, I can't use the like button for myself so I repost it again



Aug 17, 2015 at 12:20 PM
alundeb
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p.5 #2 · Interesting Reference Data on Dynamic Range - 5dsr


mttran wrote:
+1, canon hard core does not like sony period even sony cam can mate canon lenses


There is a correlation, but isn't it obvious that the causation is the other way around than you seem to imply?
Why would anyone preferring large grips, rock steady AF, huge batteries, high ISO DR priority and professional service, like Sony E mount cameras and not Canon DSLRs?



Aug 17, 2015 at 12:27 PM
RustyBug
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p.5 #3 · Interesting Reference Data on Dynamic Range - 5dsr


There's a difference between being Canon "hard core" and understanding the differences and tradeoffs that are inherent to be paid for the additional DR. I find it prudent for someone to know what those tradeoff's might be.

In that regard ... the prospect of the new Sony sensor going into a Full Frame Pentax body has caught my eye. So, guess what ... I start striving to understand the differences that might exist between the Pentax platform and the Canon platform. It is not a "Sony bashing party" ... it is a deep understanding of the pro's / con's as they pertain to an individual's wants / needs / desires.

Personally, I dig the Pentax approach to no AA filter. No filter, then use sensor movement to induce AA on an as needed, variable basis. I dig their build. I dig their weather seal, etc. Not sure I dig their glass enough to move me off Canon, though. Point being ... that's not bashing Pentax, and we aren't bashing Sony. We are striving to be objectively understanding of the differences and the impact that the different pieces of the collective puzzle (DR is but ONE of those pieces) make for our beloved craft.



Aug 17, 2015 at 12:37 PM
gdanmitchell
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p.5 #4 · Interesting Reference Data on Dynamic Range - 5dsr


One of the oldest and most baseless, transparent distractions from addressing the validity of a person's point in a photography forum is to demean their photography. One tired old technique is to ask where their photographs are.

On the other hand, some of us make a lot of photographs using various kinds of gear and regularly share, exhibit, sell, license, and even write about the photographs. It is logically inconsistent to demean the arguments of a person who has not shared photographs here and then discount the same points of view when they come from people who have and who do. Even more ironically, such photographers' posts may be discounted because they share photos and are thus distract from the important technical facts, occasionally with a reminder that this forum is for "technical" discussions and not aesthetics, subjects which are apparently regarded as unrelated.

On the subject of inconsistencies, we regularly see the point that "Person X doesn't even use Camera A," both offered up by folks as a reason to discount Person X's point of view and "liked" by those who share that opinion. Yet the very people raising/liking the "you don't own one!" argument often don't own the other gear that is being compared! Do they not see the irony?

As to the purposes of sharing "test" images in the forum, I see two patterns:

  1. Some select and share images purportedly taken to "test one camera against another or one technology against another," but with the obvious goal of demonstrating that the gear that others use sucks badly.
  2. Some of us share examples from our own photographs and equipment instead to demonstrate how the gear we use works and what it is capable of, with no interest in making other gear look awful.

Taking an obviously ironic and sardonic post here and there, among a much larger body of writing that attempts to be rational and objective, and then trying to mischaracterize a person on the basis of a willful misinterpretation of that carefully selected quote is a far different thing than seeing the general and obvious pattern in the positions and posts of another person. It is particularly odd coming from people who regularly/frequently use the same sort technique in their own posts. Kettle? Pot calling.

I occasionally use irony in a post, especially when it may be the fastest and most incisive way of pointing something out. In general, for the irony impaired and because I'm chuckling to myself as I write it, I may include a smiley. Like this one --> ;-)

Inventing a point of view for a person you dislike and then arguing with the fantasy you invented (for example, the fiction that I and others here "hate Sony") is also an old, transparent, and odd tactic. It suggests that personalizing and arguing are more important than exploring facts and viewpoints for their validity. It also suggests an odd conflation of disagreeing and hating.

As to the "problems" on this forum, most of these discussions are usually reasonably civilized, as this one was in places, until a certain group shows up. Take a look at this thread to see if you can spot the pattern. Take a look at a lot of threads on the Canon boards. While you are at it — especially those who imagine that Canon-prefering folks hate Sony — take a look at the Sony board and see how that pattern differs, even when Canon using FM members visit those threads.

About the Canon folks who supposedly hate Sony, the truth is that many of us think that Sony gear is fine and even excellent. We even recommend it to some folks for whom it might be the best choice. I regularly read the Sony forum so that I can understand it better. We are not denigrating Sony, its equipment, or people who choose to use it, some of whom are good friends and colleagues. Some here even use Sony themselves, or use and like very similar camera systems.

Regarding the notion that some people are here to "fight a DR battle" here, I can only marvel and puzzle at the idea of such a strange and bizarre thing. A "DR battle?" Really!? Over dynamic range of camera brands? To use the old expression, "that does not compute."

In the past week I have blundered in a few of my posts on more than one occasion. I misunderstood what someone else wrote and/or I replied without carefully reading the message to which I replied. When I saw my mistake — and God knows I make my share of them — I engaged in a bit of reflection. In a couple of cases I apologized for my error in the thread where I made it. And these were not my first blunders or errors. I made my own share of personalizations early on in FM posts, some of which I still regret. For me, one lesson learned (eventually and imperfectly) was to mostly "not go there" with the folks who set me off or whose posts are too often simply angry and argumentative. Yes, in this post I am "going there" — I'm trying to say it all in one post and then go back to not interacting with them.

A bit of self-reflection and even an occasional apology can be a good and healthy thing, especially for the person doing the reflecting and making the apology. It acknowledges your recognition that there is a real person on the receiving end of your posts. It can be a powerful way to reduce the conflict and re-start on fresh ground.

Dan

Edited on Aug 17, 2015 at 09:10 PM · View previous versions



Aug 17, 2015 at 12:45 PM
KKFung
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p.5 #5 · Interesting Reference Data on Dynamic Range - 5dsr


I said I will take comparison of DR shots between 5DsR and 1Dx, here you go:

No luck on the magic this morning so I put the 2 camera framing the same, 1Dx + 24-70/2.8II 2 24mm and 5DsR + 24LII

Both have the same exposure, I use 5DsR for metering in Av mode and 1Dx follow it by M mode, shoot in Live view

無標題 by KK Fung, 於 Flickr

1Dx original file
1Dx ori by KK Fung, 於 Flickr

5DsR original file
5DsR ori by KK Fung, 於 Flickr

Then I push the "auto tone" button on the left and have the software to make auto adjustment or say "flat out" both pictures

1Dx after auto tone
1Dx auto tone by KK Fung, 於 Flickr

5DsR after auto tone
5DsR auto tone by KK Fung, 於 Flickr

Here are the 100% crop of lower left corner

1Dx
1Dx crop by KK Fung, 於 Flickr

5DsR
5DsR crop by KK Fung, 於 Flickr



Aug 21, 2015 at 09:04 PM
gdanmitchell
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p.5 #6 · Interesting Reference Data on Dynamic Range - 5dsr


Thanks for doing that. Of course, the 100% crops do encounter that familiar bugaboo of comparing 10% crops — and Y x Y dimension section of the 18MP file is a much larger area of the image than a Y x Y section of a 50MP file. (This explains the much larger grass blades in the 5DsR example.)

In any case, there seems to be sufficient image data in the shadows in both examples.

Dan



Aug 21, 2015 at 09:18 PM
KKFung
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p.5 #7 · Interesting Reference Data on Dynamic Range - 5dsr


The shadow of both cameras are good enough in this kind of situation and easy for post. However you can see 5DsR's is cleaner than 1Dx's.

The mid low tone of 1Dx is brighter that can let you more easy for adjustment in post

What surprise me is that the TSE24LII have no flare, 24-70/2.8LII have obvious flare, I know a prime lens is a prime lens but I never think the different is that big



Aug 21, 2015 at 09:20 PM
KKFung
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p.5 #8 · Interesting Reference Data on Dynamic Range - 5dsr


gdanmitchell wrote:
Thanks for doing that. Of course, the 100% crops do encounter that familiar bugaboo of comparing 10% crops — and Y x Y dimension section of the 18MP file is a much larger area of the image than a Y x Y section of a 50MP file. (This explains the much larger grass blades in the 5DsR example.)

In any case, there seems to be sufficient image data in the shadows in both examples.

Dan


Yes, both camera are good in shadow in real life, the elder 1Dx never give me trouble in landscape shoot. The 5DsR for sure more easy.



Aug 21, 2015 at 09:26 PM
Monito
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p.5 #9 · Interesting Reference Data on Dynamic Range - 5dsr


Thanks for the shots, KKFung. It seems both have been shot at ISO 100.

It is possible the AutoTone is applying different curves. The shadows look noticeably brighter in the 1D-X photo after AutoTone.

Even so, it seems the noise is similar in quantity but the 1D-X noise is lumpier though somehow finer grained and the 5DsR is smoother though somehow coarser grained, though it is hard to tell. One wonders what uprezzing and downrezzing (to make same sized swatches) would do, but I wouldn't want to put you to the trouble.

I've never used AutoTone in LR and I'm unlikely to (it's on the right is it not?). The most auto of anything I use is Auto White Balance, and even that is only a starting point. I would have been inclined to move the Black and Shadow sliders by the same numerical amount for each camera.

The cameras were aligned for the horizon detail so there is parallax in the foreground (as is to be expected) further complicating the comparison.



Aug 21, 2015 at 10:51 PM
KKFung
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p.5 #10 · Interesting Reference Data on Dynamic Range - 5dsr


Thanks for comments Monito.

Regarding the AutoTone my initial consideration is since 2 camera already have different tone in raw, I thought applying an identical push or pull on shadow, exposure, highlight ... etc will make something similar result as in the original pictures, I also don't want to use my "art sense" (if I have) to make individual adjustment like what I did normally (in this case I will lift the 1Dx shadow lesser than in 5DsR) so tried to use "AutoTone" (it is on the left - Lightroom General Presets) and have the computer to adjust with the same artificial art sense

In my normal PP I always use this "AutoTone" function to check my photos in the first place, when your photo is close to the ideal exposure the change will be close to zero when you press this button, then I can see what is applied by the computer and reset the photo or just base on the computer setting to start adjustment.



Aug 22, 2015 at 03:29 AM
MayaTlab
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p.5 #11 · Interesting Reference Data on Dynamic Range - 5dsr


KKFung wrote:
The mid low tone of 1Dx is brighter that can let you more easy for adjustment in post


That's Adobe's fault . For some obscure reason they decided to give to all 5DS(r) profiles a tonal curve with more contrast. Even weirder is the fact that, so far, the 5DS(r) is the ONLY camera that has, with Adobe Standard, a different curve from the "camera raw default" curve.



Aug 22, 2015 at 05:27 AM
KKFung
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p.5 #12 · Interesting Reference Data on Dynamic Range - 5dsr


MayaTlab wrote:
That's Adobe's fault . For some obscure reason they decided to give to all 5DS(r) profiles a tonal curve with more contrast. Even weirder is the fact that, so far, the 5DS(r) is the ONLY camera that has, with Adobe Standard, a different curve from the "camera raw default" curve.


True, I also tried to make the 5DsR back to 1Dx tone in Lightroom, I can do it close but can't be identical, see below post.




Aug 22, 2015 at 06:06 AM
KKFung
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p.5 #13 · Interesting Reference Data on Dynamic Range - 5dsr


1Dx after touch up in LR
KK__1957 by KK Fung, 於 Flickr

I copy the setting from the above 1Dx photo to the 5DsR file, come out like this
1G5A0930 by KK Fung, 於 Flickr

And then I try to adjust the 5DsR photo to look as close as the 1Dx's
1G5A0930-2 by KK Fung, 於 Flickr

Add a remark: I used another set of file to avoid the flare in the 1Dx photo I posted in the begining



Aug 22, 2015 at 06:10 AM
MayaTlab
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p.5 #14 · Interesting Reference Data on Dynamic Range - 5dsr


KKFung wrote:
True, I also tried to make the 5DsR back to 1Dx tone in Lightroom, I can do it close but can't be identical, see below post.



If you use Adobe Standard you can very easily get back to the 1DX curve (or somewhere very close) by using DNG Profile Editor, loading the 5DS(r) Adobe Standard profile, and just changing the tone curve from "Base profile" to "camera raw default". Why Adobe decided to use a different curve just for the 5DS(r) is anyone's guess and I still haven't received an answer from them.

If you're using other Canon-specific profiles, you can't use the same trick as these don't usually use the camera raw default curve but a specific one you can't access in the tonality curve drop-down menu. But as far as I'm concerned I prefer to change all profiles to the camera default curve anyway as it has a smoother transition in the highlights than Canon-specific profiles.



Aug 22, 2015 at 06:58 AM
KKFung
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p.5 #15 · Interesting Reference Data on Dynamic Range - 5dsr


MayaTlab wrote:
If you use Adobe Standard you can very easily get back to the 1DX curve (or somewhere very close) by using DNG Profile Editor, loading the 5DS(r) Adobe Standard profile, and just changing the tone curve from "Base profile" to "camera raw default". Why Adobe decided to use a different curve just for the 5DS(r) is anyone's guess and I still haven't received an answer from them.

If you're using other Canon-specific profiles, you can't use the same trick as these don't usually use the camera raw default curve but a specific one you can't access in the tonality curve drop-down
...Show more

Thanks! This one

5DsR camera default by KK Fung, 於 Flickr

original
5DsR ori by KK Fung, 於 Flickr



Aug 22, 2015 at 10:24 AM
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