Focus stacking is a technique used to combine multiple images with different focus points to create a single image with a greater depth of field. It is not a type of HDR photography technique.

A tripod is used in HDR photography to keep the camera steady and prevent camera shake, which can cause ghosting or other artifacts in the final image.

Luminance HDR is not a common type of HDR photography software. Adobe Photoshop and Photomatix Pro are both popular choices for HDR photography.

A shutter speed of 1/250th of a second or faster is recommended for handheld HDR photography to minimize camera shake and prevent ghosting.

Polarizing filters are not commonly used in HDR photography. Graduated neutral density filters and neutral density filters are both commonly used to control the exposure of different parts of the scene.

A remote shutter release is used in HDR photography to avoid camera shake when taking multiple exposures. This helps to ensure that the images are perfectly aligned and free of ghosting.

Compact cameras are not commonly used for HDR photography because they typically have limited dynamic range and manual control capabilities.

An aperture of f/11 is recommended for handheld HDR photography because it provides a good balance between depth of field and image sharpness.

Panoramic tripods are not commonly used for HDR photography because they are designed for taking panoramic images, not multiple exposures.

Graduated neutral density filters are used in HDR photography to control the exposure of the sky, which is often brighter than the foreground.

White balance adjustment is not a common feature in HDR photography software. Tone mapping and exposure fusion are both essential features for creating HDR images.

ISO 100 is recommended for handheld HDR photography because it provides the best image quality with the least amount of noise.

JPEG is not a common file format for HDR photography because it does not support the high dynamic range of HDR images.

Neutral density filters are used in HDR photography to control the exposure of both the sky and the foreground, allowing for a more balanced exposure.

Aperture priority is not a common camera setting for HDR photography because it does not allow for full control over the exposure of the image.