Jim1938 wrote:
I got my first 35mm camera in 1960 and every shot was manually exposed, except for the ASA (now ISO). After a while, I bought and used a light meter and my pictures became a lot better and much more interesting.
Lately I've seen quite a few questions regarding manual shooting and wonder why one would ever want to shoot entirely in manual mode, except in some very rare circumstances? At best, manual mode is a guess about the proper exposure settings, although some photographers can probably do a passable job. Certainly, I can see setting two variables manually and letting the camera set the remaining variable automatically, but totally manual exposure, I don't see.
What am I missing? Does "manual" mean setting two variables manually or does it mean setting all variables manually? Are manually exposed shots better in some way? Is it just a guessing game and the one who gets the closest to a great exposure wins the game? Help...
I got my first 35mm camera in 1960 and every shot ... (
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First of all, there are various manual modes:
FULL MANUAL EXPOSURE mode means YOU set the ISO, Aperture, and Shutter Speed. The camera does not set any of them. The exposure is FIXED. It is not controlled by the camera. It remains the same until the user changes one of the variables, or until the scene lighting changes, whichever comes first.
FULL MANUAL FOCUS mode means that YOU focus the lens — by hand — on the point of interest you wish to be sharp and clear. You can use whatever aid the camera has to display the image, pick a part of it, and get it focused, but YOU are in control.
FULL MANUAL WHITE BALANCE* mode means that YOU set the white balance in reference to some sort of neutral test target or profiling device. The camera reads the target and assumes it is perfectly neutral, then FIXES the white balance in reference to that neutral surface. Panasonic calls this a Manual White Balance. Canon calls this a Custom White Balance. Nikon calls it a Preset White Balance. Your camera brand may well use one of these names, or something else, but it is there.
*Yes, I know you can change white balance of RAW files in post-production. Setting full manual white balance IS most helpful for in-camera JPEG processing. However, it can provide a very accurate starting point for setting a white balance in post-processing.
There are MANY instances where using one or all of these full manual modes is the best way to work. Fluidly changing events (sports, nature, wildlife, kids, drama, weddings and parties, etc.) are NOT good examples of when to use full manual mode.
Full manual exposure and full manual white balance, used together, are most useful when you are:
> Trying to make a series of exposures under fixed, controlled, consistent lighting that should all look the same, except for the main subject in them. Examples would be duplicating slides, working on a copy stand, copying artwork, making 400 school portraits for a yearbook, photographing small parts for a catalog...
> Photographing subjects that are extremely high key (mostly white), or extremely low key (mostly black), or contain a very large area of extremely saturated color. Examples would include:
— a Scandinavian blonde in a white dress, standing against a white wall... (Auto exposure of any type would UNDERexpose this subject.)
— an African American college graduate in a black robe, wearing a black cap, walking across a stage in front of faculty also wearing black, with a black curtain behind them... (Auto exposure of any type would OVERexpose this subject.)
— an Irish red-headed lass in a deep red dress, standing against a lighter red wall (Auto White Balance would dull the reds, and turn her skin an ugly shade of deathly cyan.)
— an Irish red-headed lass in a dark green dress, standing against a lighter green wall... (Auto White Balance would dull the greens, and turn her skin a hideous shade of flaming pink.)
I've encountered all of these scenarios... They are actual examples of problems I had to troubleshoot when I ran the digital side of a photo lab in the early 2000s, and situations I encountered when producing audiovisual and video programs.
A few pointers:
Given a constant light source, and assuming a desire for consistently accurate reproduction, exposure does NOT need to change when the color or reflectivity of the subject changes. As you might guess, auto exposure and white balance can lead to undesirable inconsistencies in output! So referencing manual exposure and manual white balance to a target is EXTREMELY helpful. It will provide the same, correct appearance with all subjects photographed under the same lighting and other environmental conditions. It saves a LOT of time in post-production and produces better consistency.
Custom/Preset/Manual white balance (or a Kelvin setting with a tint offset) is nearly always better than any of the camera's built-in settings (Daylight, Flash, Shade, Cloudy, or AWB). That's because all of those stock settings are assumptions. The last one — AWB — assumes EVERYTHING is perfectly neutral. A manual white balance, referenced to a target, takes into account ALL of the light sources falling on it, whether coming from the main source, or reflected off of walls, carpet, clothing, red clay, grass...
Again, I am not here to say that Manual modes are the be-all, end-all of photography! Far from it... Modern automation has opened up a whole new realm of SPEED in capturing events. Used correctly, auto modes can drastically increase the "keeper rate" of action photography, by making adjustments that manual methods could never handle quickly enough. I use my camera's auto modes — all of them — in their appropriate situations. But I also work in Manual Everything mode for certain types of work, and that makes all the difference in those instances.