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Apr 3, 2015 21:33:55   #
georgevedwards wrote:
As for Flicker, I have tried it several times but am generally confused by it, it seems like too much is there for me to find my around. Sort of like Light Room. I got it with the Cloud subscription but can't make heads or tails out of it. I know it works well for some people. I love Photoshop and its Browser, and so far nothing else really does more for me. I am interested in working with the image, not cataloging.


I find Flickr and Google Web Albums/Photos indispensable when researching any camera/lens purchases because you can easily search photos for specific cameras and or lenses.

Start by clicking here:
http://www.flickr.com/search/?q=tokina%2011%20-%2016 (which is set up to show pics taken with Tokina 11 - 16 lenses), select any photo - when it loads you can scroll down to see EXIF data.

Then just enter any other search term in the search field in the upper right corner - like - Nikon 10 - 24.

Like i said above - indispensable when researching cameras and lenses.
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Apr 2, 2015 22:12:25   #
minniev wrote:
Here's a link to an article that helped me finally "get it" with ETTR and UniWB. It is technical but presented where us "real" people can follow it (if we try). http://www.dpreview.com/articles/6641165460/ettr-exposed

I have not done much with UniWB which seems like too much sugar for a dime (as the old folk say), but I do use ETTR.


Thanks for the link. It and Dave's "What's with this "ERADR" and "EBTR" stuff?" UHH thread cleared up the questions I asked.
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Apr 2, 2015 21:55:24   #
Uuglypher wrote:
Pic piper asks:
"Or am I just overthinking the whole thing - maybe just routinely bump up everything by +2/3 or +1?

That approach to counting on a given amount of so-called "headroom"...or, more accurately"extra raw-accessible dynamic range" (ERADR) is problematic without knowing your camera's allotment of ERADR; it varies among cameras...even among cameras of the same model. If your camera has only 2/3 stop ERADR and you count on one full stop...blown highlights!
If you use 2/3 stop and your camera has two and 2/3 stops of ERADR, you've left two full stop laying on the table, unused!
Test your camera. it's not rocket science!

Best regards,
Dave
Pic piper asks: br "Or am I just overthinking... (show quote)


Thanks Dave - After posting the above I found your "What's with this "ERADR" and "EBTR" stuff?" UHH thread (for some reason your link was getting me to a UHH 404 page). I'll do the tests.
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Apr 2, 2015 16:14:35   #
Apaflo wrote:
By using UniWB white balance the histogram becomes extremely accurate. The preview image becomes a sick looking green color and is no longer useful for preview though. That could easily be changed by the camera manufacturers to provide useful results in both ways at the same time.

Absent the effort it takes to get an histogram that is within 1/10 of an fstop, it isn't hard at all to easily be within 1/3rd of an fstop. The typical 1/2 to 1-1/2 fstop variation between the JPEG and RAW headroom values need not be tolerated if people will configure the on camera JPEG engine to produce a better histogram and not worry about getting a useful JPEG image. It just requires lower contrast, less brightness, and most of all backing off on saturation.

Judging when highlights clip is the only significant characteristic. Displaying the entire available dynamic range is not useful.
By using UniWB white balance the histogram become... (show quote)


I'm trying to parse out what appears to be some pretty good information in your paragraphs. Questions:

What is UniWB? My Nikon D5300 only has the standard ones plus Pre (custom from photo or measurement). Does histogram track left/right with WB?

"It just requires lower contrast..." Are you saying that if you conform your jpg-oriented camera's static settings for less contrast, brightness and saturation you will skew the histogram to the right for a better RAW capture?

I understand (I think) the contrast and brightness connection, but "...most of all backing off on saturation." How does saturation impact histogram? Is the saturation reduction to avoid masked channel-clipping?

A little background - I've been bracketing RAW shots for HDR PP through several generations of Canon Powershots with CHDK. CHDK allowed the Powershots to save RAW (dng) files, bracket as many shots as desired, full color live histograms, etc. Because I generally had 5 to 7 bracketed shots to work with the whole ETTR-thing was merely academic.

Thanks to Chuck's thread and "that other one", I learned the difference between jpg "proper exposure" and RAW "proper exposure".

The reason for the above clarifying questions is I have been limited to 3-shot RAW+jpg brackets with my D5100 and D5300. I'm trying digest these revelations to set up my Nikon to ETTR the whole RAW bracket set.

Or am I just overthinking the whole thing - maybe just routinely bump up everything by +2/3 or +1?
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Apr 1, 2015 17:32:36   #
jenny wrote:
* * *
Sensible reply. The Op admitted he had been careless, this was totally overlooked by those who thought they had a morsel to chew on endlessly. Chuck perhaps tried to appear to be open-minded about the matter but should have realized, considering the past feedback on this subject, that it would only degenerate to the usual sort of inane monotony with a few disparaging remarks to anyone who seemed to question their supposed superior ideas.

Good try Chuck! Unfortunate choice of discussion material!
Hard to believe you wouldn't know what would happen when you had so much material to identify the problems from even the one previous thread which you say prompted you to to tackle the subject again. Time to put this to rest.

Blenheim Orange wrote:
This thread is informative and valuable for many of us. Please respect that. If it is not informative and valuable for you, no one is forcing you to participate.

There is no basis for argument here. No one is telling you what you should or should not do, and no one is arguing that one method is "wrong" and another one "right."

Mike
* * * br Sensible reply. The Op admitted he had be... (show quote)



:thumbup: :thumbup: :thumbup:
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Apr 1, 2015 17:12:42   #
georgevedwards wrote:
I have my eye on the Nikkor 10-24mm, but even refurbished it is $700. I see a Sigma 10-20mm for around $400 and a similar Tamron, anyone have any personal experience with the other brands and what are your preferences and comparisons? Dpreview seems to show the Tamron has the softer focus on the corners than the Sigma. I assume the Nikkor is better at the corners but does not have a review on Dpreview.


I engaged in the same search for an UWA lens about a year ago for a European river trip. Bought the Tokina 11-16 DX II (has AF). Tokina 11-16 vs Nikon 10-24 Google searches turn up many good hits like:

http://www.dpreview.com/forums/post/38187654
http://www.flickr.com/groups/nikondigital/discuss/72157618461773425/

I bought it for the fixed f2.8, the excellent photos you can search for on Flickr, and because of the claims that it was mechanically robust.

I can certainly attest to the robustness. Being a neck strap AND wrist strap type of guy I was horrified when I stood up from a seat on a London train and my D5100 with the Tokina lens fell from my lap to the floor. I saw it going down, grabbed at the neck strap, but didn't break the fall. It landed lens first and I immediately thought, "Well, there's $522 down the drain". Turns out the lens was fine, but the D5100 was dead - mirror was stuck because the pin was knocked out of it's socket.

I appreciate reviews and forum discussions, but find the best way to judge a lens and cameras is to search directly on Flickr (or Google Photos/WebAlbums.)
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Apr 1, 2015 16:11:24   #
Delderby wrote:
After much discussion - most of it hooraying the original post - I would like to point out that the original pics were purposefully wrongfully exposed. If those pics had been correctly exposed - would the discussion have been on the same lines? The discussion has been about the advantages of PP in sorting out a bad exposure. But if the exposure had been correct I contend that there would not have been so much to talk about. So has this discussion been about sorting wrong exposures - and is this the norm? If so it ain't for me!
After much discussion - most of it hooraying the o... (show quote)


Please see photo at http://www.uglyhedgehog.com/t-296470-3.html#4997541 for my initial reaction to your question.

Chuck clearly stated he purposely started with problem exposures for purposes of his tests. Most of the discussion has focused on the many advantages of working with RAW files in general. If you bothered to read any of the article links or even glanced at the pie chart at the top of page 11 of this thread you could see the advantages of RAW.

Working with RAW files and Chuck's thread has been far, far more than "...about the advantages of PP in sorting out a bad exposure."

Delderby wrote:
So has this discussion been about sorting wrong exposures...


ABSOLUTELY NOT!!
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Mar 31, 2015 18:46:22   #
Chuck_893 wrote:
You're right, I really wasn't as interested in that sort-of-"correctly" exposed jpeg. To have been fair I should have really worked it as I usually do, "expose for the highlight...." But all I really wanted to do was get an overexposed raw file. Now it happens that everything I shot, I shot jpeg+raw, so I have a raw "negative" for each picture. Given what I think I have already learned from this exercise, I bet I could get a really bang-up final jpeg from the raw file that was (at least) close to correctly exposed. I was being really careless. I almost didn't get what I'd set out to get until we wandered past the trolls--um trollies. :mrgreen: I have a bunch of other stuff to play with. I just wanted to get into print as soon as possible with this before we all forgot about the 57-page saga. :lol:
You're right, I really wasn't as interested in tha... (show quote)


Chuck - very glad to see a SOOC JPGer actually diving in and seeing the benefits first hand. You are well on your way down the slippery slope :) .

Your next step is to get your head around the fact that "correct exposure" for a RAW file may be quite different and at times counter-intuitive (based on film experience) from "correct exposure" for a .jpg.

To dive into this you can search UHH for "expose to the right" and find the usual mix of sound advice and ignorant bloviation. However, before you do that I suggest you read this https://luminous-landscape.com/optimizing-exposure and pay particular attention to the black and white cats.

If you can get your head around the information in that article it will make your transition to the RAW-side easier and lead to even better photos than you are getting a peek at now.
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Mar 25, 2015 21:52:03   #
lsimpkins wrote:
Monty Python Argument Clinic anyone?
http://www.youtube.com/watch?v=kQFKtI6gn9Y


:thumbup: :thumbup: :thumbup:
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Mar 25, 2015 21:29:25   #
Davethehiker wrote:
I'm not sure how to respond to your request but I'll try. I'm going to upload two images. One is the JPG provided by the camera. The second one is a JPG that was made from the RAW file and corrected and optimized to the limits of my skills. I hope this helps.


Dave - regardless of whether OP Jim Bob is a troll or just likes stirring things up, I must thank him for provoking you to share your spectacular hummingbird photo. They just don't get much better (and certainly not if you'd only had a jpg to start with. :lol: )
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Mar 25, 2015 21:01:20   #
neilds37 wrote:
After I posted this I realized I had not tried to PP the JPG, and was hoping someone would do that. You did a very good job of it. Now, would you, or anyone else, try to come close to the RAW development with the JPG on this one I just shot?


There's no way to get the same detail because of all the missing data points, but here's what a few minutes in PS can do with the dark jpg.

(BTW - I'm fully in the RAW+jpg camp too ;>)


(Download)
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Mar 25, 2015 20:03:03   #
robertjerl wrote:
Dave I think he is like a guy at a sports bar who yells out random insults to one team or another when no one can see who did it, then enjoys the free entertainment that results. Mini-riots as a spectator sport. And to keep it going he injects comments. Just like someone egging on two kids fighting so he can watch.


Robert - After wading through this muck you beat me to a good analogy. I was thinking more along the lines of people walking down the street - two people in a doorway having a normal, rational discussion - nobody gives them a second glance. However, if that same discussion is a debate with raised voices and a few cast aspersions, suddenly passersby begin to huddle around, start taking sides, throwing in their own remarks... and on to your mini-riot.

Actually, I've been amazed by civilized responses to the chum thrown out by the OP.
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Mar 25, 2015 19:47:56   #
Don Fischer wrote:
Picasa is what I use for photo's I'm gonna print, love it. One problem though it seem's that I can't put a Picasa file into my picture's and get it downloaded with the change. I suspect it is doable but I haven't figured it out!


Don - your question seems a little off-topic in this RAW vs jpg brouhaha and is a bit vague. The important feature about Picasa is that it doesn't do destructive editing. The changes and edits you make in Picasa don't change the original photo and are only visible in Picasa. If you want to "lock in" the edits you have to either export the photo - which creates a new photo in the folder of your choice, or you have to save the photo within Picasa which actually creates a new photo containing the edits in the photo's home folder AND moves the original, unedited folder into a hidden folder named .picasaoriginals.

What is relevant to this thread regarding Picasa is that it is pretty useless to compare jpg vs RAW in Picasa because Picasa reads the camera settings out of the file and uses those settings to process and display the RAW data and is nowhere near as good as the in-camera processing of the jpg. RAW files in Picasa never look as good as the jpgs.
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Jan 25, 2015 03:01:49   #
Jana-TAS wrote:
If you really are interested in photography the newest version of Photoshop would probably be the best for you to look into getting. Yes there are the ones like Picasa that you can use online but what if you were to want to do something straight on your computer if the computer is a laptop while power was out and you did not have internet connection. Best that you get the Photoshop so you have the software yourself.


Picasa is NOT software that "you can use online". It is installed on your local computer just like Lightroom, Photoshop, GIMP or any other software. It is used to catalog, edit and manage photos stored on your local machine and is in no way impaired if you have no internet connection. In addition to these features it also allows you to easily upload to and manage photos in your Google Web Albums galleries.
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Jan 22, 2015 22:12:06   #
Billyspad wrote:
Save target as just saves a link to the website in a place you choose. Similar to adding it to your favorites in your web browser.


No - "Save target as" saves the target the link points to, not the link.
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