Manual Mode: Misconceptions and Myths

Manual Mode: Misconceptions and Myths

Members of the mysterious and magical craft of photography may have mentioned that mastering manual mode may be the most meandering path to making magnificent masterpieces. There's a shortcut, though.

Mode of the Wizards

For some beginners, the "M" dial stands for "magazine," "master," or simply a mode for hipsters and elitists. Indeed, there are photographers who may tell you that you can't make good photos unless you solder your dial at the M position. While I, personally, have it set there, I'd like to discuss the advantages and disadvantages of using manual mode versus the semi-automated modes.

Back to the Basics

For those that are starting up, there are three basic settings for something called "an exposure." This is a term for capturing an image in camera with the appropriate level of brightness. If the image is brighter than it should be, it is called "overexposed." Otherwise, it's "underexposed." The correct brightness, or correct exposure, is a subjective term. Sometimes, we might want a slightly lighter or darker image.

In order to create a well-exposed image, the camera needs to have the following three settings in the right combination: aperture (measured in f-stops: f/2.8, f/8.0, f/5.6, etc.), shutter speed (measured in seconds: 1/250, 1/800, 1/50, etc.), and ISO (with values like 100, 640, 1,600, etc.).

Large format camera

Remember those old-fashioned cameras with bellows and a cap in front of the lens? Here's how these three parameters fit there: the size of the opening of the lens is the aperture. The bigger the size, the more light enters, and the brighter the image is.

When the photographer removes the cap, light enters through the lens to the back part of the camera where a plate with photosensitive coating resides. The longer the cap stays off, the brighter the image and vice versa; the shorter the duration, the darker the image. This is the shutter speed of the modern camera. On DSLRs, there are two thin lamellae that cover the sensor and block the light. When you photograph something, these open and close for the duration defined by the shutter speed setting.

There are different types of plates and coatings. Some react faster, while others are slower. This is how the ISO setting on the modern cameras work. The higher the setting, the faster the sensor reacts to light and the brighter the image becomes.

That's all the mystery behind these three settings: they are mostly for controlling how dark or bright an image is. There are side effects such as the depth of the focus field (the blurred background and foreground), motion freezing, noise, and others. If we photograph a static object, there are many combinations of values that will give you the same result. It is like having three numbers that when summed must equal 10. You can have 1 + 2 + 7 or 3 + 3 + 4, or 1 + 8 + 1. This is why the statement "correct settings" is the shortest joke in camera clubs.

Semi-Automated Versus Manual Mode

You know what manual mode is. That's when you freely fiddle with the aperture, the shutter speed, and the ISO. Semi-automated modes let you lock some of the settings manually, while the camera calculates the rest of them for you. How does it do it? It has an arbitrary level of exposure called "18% gray" and simply calculates values for the non-locked settings that produce that kind of exposure.

If I have to use the sum-of-numbers-analogue, that's when you say "I lock three and five" and the camera calculates the third value: two. Or you lock "four" and the camera thinks that "one and five" would be suitable for your image. In cases like the last one, the machine may not come up with the best combination of numbers. This is when you might regret using semi-automated modes.

Camera underexposing a scene in a bright snowy day

The photo above is how the camera thinks the image is properly exposed. Because of the huge bright area, it decides to darken the image. The image at the bottom is how it was expected to be exposed.

Advantages and Disadvantages of the Semi-Automated Modes

The obvious advantage is that the camera helps you by figuring out the settings for you. One of the most used semi-automated mode is where you set the aperture. That decision is based upon the focal depth you'd like to have: a smaller value makes for a more blurred background (often used for portraits) and a greater value makes more objects in focus (used by most landscape photographers). Semi-automated modes are very convenient for photographers who have a more photojournalistic approach to their projects, where capturing important moments is the ultimate goal and dialing settings manually may ruin that opportunity.

The drawback from using these is that your exposure may vary from shot to shot, depending on the variety of subjects in frame. If you photograph a wedding and you make a group portrait of groomsmen in black suits, the camera may think that the image needs to be brighter. As a result, those photos will be overexposed. At the same time, if you take photos of white-dressed bridesmaids, the camera may think the subjects are too bright and underexpose the result. In reality, both groups of portraits have to be with the same level of exposure, because they are taken under the same lighting conditions.

Another drawback of semi-automated modes is when using external flash. When the camera guesses the settings, they may vary from shot to shot. The flash power needs to be automatically adjusted as well. This is not a function many flash guns or strobes support, and if they do, they are more expensive. The ability of the light sources to be adjusted automatically is called TTL. The flash "talks" with the camera, firing one or more pre-flashes in order to make better guesses on the power level it has to be adjusted to.

If you want to give your clients or viewers images that have a balanced exposure, but your shots vary, this will cost you more time in front of the computer, which is the price of the convenience of using a semi-automated mode.

Camera light meter indicator

Camera light meter indicator

Advantages and Disadvantages of Manual Mode

There is a misconception that for manual exposure you have to dial in settings every time. That is not the truth. If the lighting conditions are the same, you adjust your camera settings once and then simply focus on your framing and composition. This establishes exposure consistency from shot to shot and gives you the possibility to work with a flash that is not necessarily the most expensive one. Even the cheapest flashes work with manual settings. This also spares you the somewhat cumbersome operation of balancing the exposure of photos in post-production. Imagine you have to shoot a panorama that you need to stich in software, and all your photos were shot with slightly different exposures. This is where manual mode comes in handy.

The disadvantage of manual mode is that you need to dial those settings in manually. One might think it is like finding a needle in a haystack. There's something called "an internal camera meter," which helps you guess the exposure easily. Using that meter, you can nail the settings with the first click almost every time. I have already covered that topic in a previous article. You should know what the side effects of the three basic exposure settings are in order to choose the best combination.

Let's say you want to photograph a portrait with a blurred background. Your aperture has to be a smaller value. Let's say you choose f/4.0. It's a bright, sunny day, so you can keep your ISO at a low value to avoid noise, and the only step that has been left is to set the shutter speed. Point the camera to the subject and dial in the shutter speed until the white dot is around the zero. Remember, you can always check the results on the back of your camera and make further adjustments if necessary.

If you learn the basics of photographing in manual mode, you will be able to make a correctly exposed image with any film camera as well.

Conclusion

Every mode has its supporters, and this is why they exist. At the end of the day, it is the final result that matters, not how you achieve it. If you shoot in semi-automated modes and make your clients and viewers happy, that's what you should care about. However, if you find yourself spending a considerable amount of time in front of the computer tweaking exposure, it may be a good time to consider shooting in manual mode on the next project. Manual mode is not exclusively for professionals. It's for those who want consistency and absolute control of the exposure. I have taught several non-professional photographers how to shoot manual mode, and they admitted it made their photography easier, contrary to the popular belief. Don't be afraid; try it out as well.

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23 Comments

Benoit Pigeon's picture

Removing the cap of an old fashion camera. I had a kick out of it! You are right however, but this is the wrong illustration, in fact, the entire "M", shutter, speed, aperture, sync are right there on the lens. Some had integrated digital meter on the back plane as well.

Tihomir Lazarov's picture

It's the wrong illustration indeed, Benoit. I could not find an image of such a camera in the public domain and decided to put this one, which is, as you have mentioned, quite more advanced (and "modern").

I would love to try such an old fashioned camera some day (the cap-removal one).

Don Althaus's picture

If you are serious that you were unable find images of these cameras, please Google or Bing "daguerreotype cameras". "calotype cameras" or "wet plate cameras". The first search produced photographs of the original camera used by Samuel F.B. Morse, the second had photographs of the cameras used by William Henry Fox Talbot and the final search produced images of both historical and modern wet plate cameras.

Tihomir Lazarov's picture

I didn't say I did not find an image, but I did not find an image with a public domain license. And yes, I probably didn't use the right keywords.

Thanks for the information, though. It's good for people to know that.

Ed Sanford's picture

What do you mean you couldn't fine one.... see this one....

Tihomir Lazarov's picture

Who shot this one and do they give a permission for worldwide commercial use? If no, that's the main reason for "I haven't found one."

Ed Sanford's picture

It was from the website of the Metropolitan Museum of art. It did not have a photo credit. Since I put it out there, it took the weight off of you. Now "students" on this site can see a vintage View Camera. By the way, it was one of Matthew Brady's Cameras and the manufacturer is listed as unknown. You are absolutely correct about getting permissions. Nevertheless, putting out an automatic view camera doesn't make the point that you otherwise made extremely well.....

Tihomir Lazarov's picture

It's a nice and expensive camera though (the automated one). And thanks for taking the blame for posting an image without a permission here :)

Ian Luyten's picture

I like that more than half of the words of your first sentence start with an 'm' :-)

Tihomir Lazarov's picture

I'm glad you've noticed it

Timothy Roper's picture

The best approach is to use the best mode for the situation. I shoot manual with the camera's light meter sometimes, other times with a hand-held incident meter, while other times I put the camera (if it's one of my modern digital ones) on P for professional. And sometimes I just wing it with Sunny 16. No one method is "best" for all situations.

Rohan Gillett's picture

I never understood why I should use manual until I watched Sean Tucker’s YouTube video about protecting highlights. Good article!

Pierre Dasnoy's picture

I believe you can achieve the same result with semi auto + exposition compensation, looking at your histogram. I'll have a look at that video anyway.

Sam Sims's picture

Sean is dead right, I only ever shoot in manual as it gives me full control over exposure. Aperture and shutter priority take away too much of the decision making for my liking.

Rohan Gillett's picture

I agree about aperture and shutter priority. They just don't quite nail it. But having said that, when I go to an event and need to move around quickly, they are first choice.

Justin Sharp's picture

I think I remember Pete Sampras saying that if he were teaching someone to play tennis, he would start them on an old, wooden tennis racket. It would be much more difficult because a wooden racket shows flaws in technique better than a modern racket. It would probably take longer in the beginning and be more frustrating to an impatient student, but in the end their technique would be more solid and they would progress further.
I started with a 4x5 then 8x10 view camera. Those were my “wooden tennis rackets.” Someone starting at the same time with a digital camera would have been taking photos a lot quicker than me but by learning on a camera with nothing but manual mode and many more hurdles, my technique and understanding of exposure feels second nature. I know most are not in the position to learn on large format cameras but taking the time and effort in learning the hard and slow way of manual exposure will pay off in the end.

Matt Williams's picture

You also have the option to use exposure compensation if you're in one of the semi-auto modes and you need to correct what the camera thinks is proper exposure.

Most of the time I'm in aperture priority, auto ISO, and using the histogram and exposure comp to get where I need. Turning a single dial either clockwise or counterclockwise to alter the exposure is much easier for me than messing with SS, aperture, or ISO in manual mode.

Especially useful because I always ETTR and so the histogram is invaluable.

But to each his own.

Rod Kestel's picture

Me too. Aperture priority + compensation, tho' I use Manual mode when shooting with flash.

Matt Williams's picture

Same, I use manual mode for studio product photography.

But otherwise, unless I'm shooting wildlife and I might be using shutter priority, I'll be in A and use expo comp. And I think that's what would work best for most people in a general sense.

Hell, a lot of the time with my Ricoh GRII I'll use P mode and expo comp (if needed) for general/street photography. Program mode works well with smaller sensor compacts too, like 1" and below, since you don't have much depth of field anyway.

Steven Andrews's picture

I stumbled across your explanation of the "internal camera meter" saying that using this nails the exposure almost every single time. If this is indeed true, wouldn't that be exactly the same as using eg aperture priority in first place?

Tihomir Lazarov's picture

The internal camera meter is just a meter. It's the same meter the camera uses for the fully-automated P mode, as well as the aperture-priority mode. The only difference is the number of locked variables.

If we're talking just for 1 exposure, anyone can nail it even in P mode. If one knows better what they are doing they can use some exposure compensation to tell the camera's internal meter which is the right "18% gray."

The question is not "can you make a well-exposed image in A, P, or M mode." The question is: what's your goal and what's the most effective way to achieve it?

My goal is to give images with balanced exposure to my clients and as I'm using artificial lights almost all the time (outside as well), I use the M mode, because
1) my strobes don't work with TTL;
2) even if they did I wouldn't use it, because TTL uses more power and would drain the batteries quicker;
3) will give me unbalanced exposure depending on the subjects in the scene and I have to change settings every now and then which will affect the way the client interacts with me, because I have to constantly change the flow of the photoshoot in order to deal with technical details. With M, I'm simply working with the client and all the technical stuff is locked down.

A wedding photographer who covers the event from all angles will say that the aperture priority is their go-to, because they don't want to lose the moment. This doesn't guarantee them balanced exposure, but they think they better have the moment and tweak the raw files in post than losing it.

I've photographed only 1 wedding in my life and I shot everything in manual mode and I didn't miss anything.

Pierre Dasnoy's picture

(Edit : What I tell is already told, so just skip here ;) )

John Watson's picture

My camera dial has a little green camera on it. So I leave it there since I am using a camera.