Using the Histogram for Better Exposure: Exploring Photography with Mark Wallace
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- เผยแพร่เมื่อ 12 มิ.ย. 2024
- www.adorama.com
The histogram is a tool that will help you get better exposures. In this episode Mark Wallace gives an overview of the histogram and then demonstrates how it can be used to check your exposures and avoid issues with over and under exposed images.
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Photos by Mark Wallace
www.markonabike.com/
www.markwallacephotography.com/
Thanks to Salim Chauhan
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One of the best histrogram explanations I've seen. Nice job.
The comparison of the histogram to grade distribution is BRILLIANT, Mark!! I've always shunned using the histogram because, though I sort of understood it, I didn't REALLY understand it! Now I believe I do. Thank you!
Yeah. It's important to understand that the term "histogram" isn't specific to photography. A histogram is a generic term for any graph that shows you the _distribution_ of measured values i.e. the count/frequency of them. So the classroom bar graph example he gave IS a histogram of the students' grades, just as the bar graph shown by your camera is a histogram of the pixel values in a given frame.
Of all the histogram tutorial videos I have seen, this one is the best! I am less than 2 mins into the video and your classroom example gave me the aha moment. Thanks!
I've seen a few histogram explanations, but this one was was definitely the most helpful and well-explained. Thanks, Mark!
Thanks, finally understood how to interpret histograms
Brilliantly explained. Clearly the best to get started with histogram
A great explanation of this subject. I have seen too many videos on this subject that do not include examples of histograms in various situations.
Thank you.
Thanks Mark. Always find your videos informative. Been watching them since 2011!
Thanks for doing this video. I'm always learning something new by watching. This will help me out a lot.
Excellent explanation! Now I understand much better how to improve my exposure.
Thanks
This was awesome, always learning and always shooting! Thanks Mark!
Omgoodness....thanks so much for such a brilliant explanation.
mark is the man!
thanks for that helpful explanation.
Great explanation! Very helpful.
Really great explanation thank you so much Mark!
Thanks for education, a great help!
great explanation!!
Nice explanation!
Easy to underdstand.. thanks!
Great video
Nicely explained pal 👍
Very helpful! Thank you!
Great teacher!
Thank you!
thank you so much.
Great explanation Mark. Thank F**k theres someone sensible and coherent on TH-cam
"Climbing the wall" :D What a descriptive way to put it.
thank you so much!
Great Great video!!
That's all well and good Regardless of what the histogram says you're either going to like the shot or not like the shot just by looking at the shot.
You talked about this in Digital Photography 1 on 1 as well... the example with the M&Ms was way sweeter I guess.
Thank you
Helpful Video
Awesome, love it, im a noob here so question, at 4:33 before and after the far right graph is clipped of the highlights? if the middle part of the graph is now exposed correctly, what happens to the overexposed highlights to the right? Or doesn't this matter?
Actually, regarding your video thumbnail, outdoor portrait is not the best example... If you are going after a nice histogram for the whole picture, person and background, you endup not knowing if the person is on the best exposure or if it ends up too much on the left or the right of the histogram... I prefer a thousand times to edit bright or dark backgrounds than to edit skin... So on Outdoor Photography I make sure to use spot meetering on the person's face and deal with whatever background shows or move to a different background, and that may not produce an even fine histogram but skin rules for me, but these are just my 2 cents... Landscape, yes, histogram rules... This said, congrats on the video, great explanation...
Nice explained. Did you take this video in Frankfurt Germany?
I try to do as your explaination...thanks
Ehi Mark, in situations like the second one when you have room on the left and on the right of the histogram, what would you suggest to do? Technically if i overexpose (without clipping) i am gathering more information, so what i could do is overexpose and then bring back the shadows to their values in lightroom later. In this way i should have more details. Am i correct?
Best
Gianni
I would do exactly as you say, because you also get less noise that way. Just be careful to not to clip the highlights.
Hi, Mark, I'm a big fan of yours. This morning, I was reading the manual of Canon 5D Mark IV and came across this AF focus system. would like to know why different types of AF point have different f number.
Htet Han Hello. Some AF points are only sensitive to F8 for example. I think it comes down to light dispersion and placement of the AF sensor.
Hello. I liked your video. However, I have watched many instructional videos on the use of the histogram and what no presentation seems to touch on is what if there are many darks, mids and lights in the photo and it would be correct by theory that the histogram shows a mess of pixels in all ranges. Does pixel spiking on the histogram indicate error in any one of the main functions such as exposure? Does a pixel spike that goes beyond the upper barrier of the histogram show complete loss of information? If so, can that issue be resolved by shooting in RAW only, in hopes that the information might be recovered through an editing program?
Lastly, wouldn't the histogram readout depend on the image being taken, whether there are information spikes or not, as long as the values of the camera are set to suit the proper look and exposure of the photo?
Thank you for taking the time to produce and present this video.
The histogram really just needs to represent tge tones in the image. What he didn't say is you would expect tones all the way to the right with a white background or back lit shot & tones all the way to the left in a black background or night shot. This 'tones in the middle' isn't for every shot. If he was wearing a white shirt in that portrait shot you would expect some tones very close to the right. This video isn't a great explanation of a histogram...like many others on youtube.
How to expose black with detail and black without detail? For example what will be reading for hair with detail and hair without detail?
Hey Mark , are you back from South America ?
aral2dmax I
If you are photographing a white carnation against blurred out dark greenery would it be better to expose the right hand lump showing the flower as far to the right as you can go to get white detail? Then would the dark lump on the left probably not worth being concerned about because it is serving simply as contrasting negative space? Is that logic correct?
I would do that. Practice it and check the results.
Is it true that the histogram only looks at data from the JPEG and not the RAW file? Is this camera specific?
dvdragon very true.....histogram is for jpegs essentially
Yes, each camera will vary a tiny bit in how it will interpret the histogram from the jpg. If you take lots of shots with the camera and process the photos in time you will learn its quirks and reading the histogram will become second nature.
At 04:30, how do you know how far you should go to the highlight?
And how much to the left and right it should be ? On tiles it was big hole on right side and it was not ok, then you adjusted and it was a smaller hole on right side of histogram and it was ok and then on other photos it was even smaller hole on right side ??
I would do it in the middle if both black and white are present.
Where did you film this?
So, apart from giving up on a shot, what would you have done to correct just black, or just white?
As for me, I would go close to the left for JUST BLACK, and close to the right to JUST WHITE photos.
Well that was clear as mud.
Haha. Just keep watching other videos and practice. Someday you will get it right. From what I understand, get it somewhere in the middle, but if you want the dark to be more prominent, get it close to the left; if you want the white to be prominent, get it to the right. But don't touch the left or right edges.
What camera strap are you using please?
Chris Bailey it's a custom strap handmade by arte di mano in Korea. www.artedimano.com
Does histogram generated based on the jpeg image generated by the camera rather than the original data which is use to generate in RAW files?
From what I have watched in other videos, it is JPEG.
we done
So basically when it comes to digital photos, you have to take two photos of everything that you photograph to make sure that you have proper exposure. In that case, I will go back to using 35mm film.
From the thumbnail, i thought that guy was Binging with babish
Great explanation, although it does seem that the bright students with A's should be on the right side of the histogram!
"I'll adjust my exposure to compensate"
Did you adjust your apeture? Shutter speed? Exposure compensation? Always leaving information out.
You can adjust either one of the three. Or even adjust your ISO.
No E's in class? 😂
Histograms are an abstraction. Their whole concept is abstract. I can see the exposure throw the view finder. No need to add an extra layer of thought into all this.
This is all assuming that as a photographer, we don't want absolute blacks or absolute whites. Only YOU can make that decision. Not the histogram or camera meter.
I guess I will go back to my hand-held light meter to meter reflected, or incident light readings of my subject, rather than relying on the camera meter or histogram when it comes to digital cameras.