How can I calculate depth of field for an Olympus OM-D EM10-Mark 11 camera without having a cellphone app downloaded? Is there a setting built into the camera? If so, what is it called, where is it?

It is possible that there are other factors affecting the depth of field in your photos, even when changing the aperture priority setting. The aperture value determines the size of the opening in the lens through which light enters the camera body and onto the camera sensor. A larger aperture (smaller f-number) results in a shallower depth of field, while a smaller aperture (larger f-number) results in a deeper depth of field. However, other factors such as the focal length of the lens, the distance between the camera and the subject, and the size of the camera sensor also play a role in determining the depth of field.
It is important to understand that aperture priority mode does not guarantee a specific depth of field, as the camera will still automatically adjust other settings such as shutter speed to achieve a balanced exposure. If you want to control the depth of field more precisely, you can switch to manual mode and adjust both the aperture and shutter speed until you achieve the desired effect.
In conclusion, if you're not getting the desired depth of field despite changing the aperture priority setting, it's best to examine other factors that could be affecting your photos and adjust accordingly.

The Olympus OM-D E-M10 Mark III is a high-performance mirrorless camera that offers advanced features and manual controls for experienced photographers. Here are a few tips for using your camera:

1. Get to know the buttons and controls: Take some time to familiarize yourself with the camera's buttons and controls. This will make it easier to adjust settings and take photos quickly.
2. Use manual mode: The OM-D E-M10 Mark III offers manual controls for aperture, shutter speed, and ISO. By using manual mode, you'll have more control over the final image and be able to create more creative shots.
3. Experiment with different lenses: The OM-D E-M10 Mark III is compatible with a wide range of lenses, so experiment with different lenses to find the ones that work best for the type of photography you're interested in.
4. Use the built-in Wi-Fi and the OI.Share App: The camera has built-in Wi-Fi that allows you to connect to your smartphone or tablet and easily share your images or control the camera remotely with the Olympus OI.Share app.
5. Take advantage of the advanced features: The OM-D E-M10 Mark III offers advanced features such as live composite and focus stacking, take some time to explore these features and see how they can enhance your photography.
6. Use the electronic viewfinder: The camera has an electronic viewfinder that allows you to compose your shots even in bright sunlight or other challenging lighting conditions.
7. Learn how to use the different shooting modes: The camera has different shooting modes like P, A, S, M, Auto, Scene, and Art filters. Learn how to use these modes to take better photos in different situations.

Remember that the best way to get the most out of your camera is to practice and experiment with different settings and techniques.

Is the memory card either full or write-protected ?

Not much. The D-540 is designed as a point-and-shoot camera, which means you're supposed to just point and shoot, without bothering about such minor details as the shutter speed and the aperture.

You have some control. For example, the Portrait mode will attempt to use a wide aperture to reduce the depth of field, which will result in a faster shutter speed, while the Landscape mode will attempt to use a smaller aperture to increase the depth of field, which will result in a slower shutter speed.

More sophisticated (and heavier, and more expensive) cameras will give you more control, but this is about all you're going to get with most point-and-shoot cameras.

Not much. The D-540 is designed as a point-and-shoot camera, which means you're supposed to just point and shoot, without bothering about such minor details as the shutter speed and the aperture.

You have some control. For example, the Portrait mode will attempt to use a wide aperture to reduce the depth of field, which will result in a faster shutter speed, while the Landscape mode will attempt to use a smaller aperture to increase the depth of field, which will result in a slower shutter speed.

More sophisticated (and heavier, and more expensive) cameras will give you more control, but this is about all you're going to get with most point-and-shoot cameras.

Other than consulting a depth of field chart or calculator, no, unfortunately.

Olympus did not make adapter for OM lenses to be used on Canon XL1 but, if you are looking for the lens adapter, Novoflex XL-OM Lens Mount Adapter Olympus Lens to Canon XL-1, is the lens adapter that suppose to work.
B & H has this adapter for sale.

OM-20 was basically a upgraded OM-10 with the manual adapter built in and a number of other refinements.

The viewfinder has LED's to show the shutter speed recommended by the camera's lightmeter for the ISO and aperture selected. It also has an exposure compensation indicator (the +/- symbol) and an indicator for flash ready which doubles up as a post-exposure flash confirmation. There is also the indicator lamp to show manual mode has been selected. OM-10 lacks the manual mode lamp and the +/- indicator.

Like the OM-10, the OM-20 is primarily an aperture priority automatic camera. In this mode you set the ISO film speed, choose which aperture you wish to use (with the ability to use the lens depth of field preview button) and then the camera selects the correct shutter speed. The +/- exposure compensation control allows the user to tell the camera to modify the recommended shutter speed by up to two stops either way.

In manual mode, there is no manual metering. The light meter behaves exactly as it does in aperture priority mode and the viewfinder shows the recommended shutter speed and not the manually selected one. Correct metering is therefore a case of adjusting the aperture first, and then choosing the correct shutter speed indicated in the viewfinder. If the user then decides to select a different shutter speed, then the aperture ring must be adjusted to maintain the correct exposure. For example the aperture is set to f8 and the camera recommends 1/60th of a second. The user decides that a faster shutter speed is required and chooses 1/250th, but the viewfinder remains showing 1/60th. In order to keep the same exposure value the user must open the aperture by two full stops to f4. The camera's light meter will detect the new aperture setting and providing the light on the object is unchanged the viewfinder shutter speed display should now show 1/250th as well to confirm the correct adjustment. Alternatively, the user can choose the shutter speed first by looking at what has been set on the control ring (or by turning the ring to the end of its travel and then counting the clicks from there as all experienced OM users do) and then turning the aperture ring until the shutter speed shown in the viewfinder matches what's been manually set.

It all sounds clumsy and complex but is done far more quickly than I've taken to type this and becomes second nature.

Aperture priority metering is selected on the camera by choosing AUTO on the mode selecter. In this mode the shutter speed ring has no effect and the viewfinder always displays the automatically selected shutter speed.

Hey _tj_,
The reason you’re not finding a download of your cameras manual is because the Olympus OM F is actually the Olympus OM 30, and was only called the F in limited markets. To get a download of your camera manual Google search "Olympus om 30 camera manual download" and the first link should bring up your camera's specs, and down at the bottom of the page there is a link that says OM manual. This link should bring up a PDF file of your camera's manual.

Sincerely,
Allan
Go Ahead. Use Us.