90Recording and Playing Back MoviesB Maximum Movie LengthIndividual movie files cannot exceed 4 GB in size or 29 minutes in length, even whenthere is sufficient free space on the memory card for longer recording.• The maximum movie length for a single movie is displayed on the shooting screen.• Recording may end before either limit is reached if camera temperature becomeselevated.• The actual movie length may vary depending on the movie content, subjectmovement, or type of memory card.B Notes About Saving Images and Recording MoviesThe indicator showing the number of exposures remaining or the indicator showingthe maximum movie length flashes while images are being saved or while a movie isbeing recorded. Do not open the battery-chamber/memory card slot cover orremove the battery or memory card while an indicator is flashing. Doing this couldresult in loss of data, or in damage to the camera or the memory card.B Notes About Movie Recording• Memory cards with an SD Speed Class rating of 6 or faster are recommended whenrecording movies (A25). Movie recording may stop unexpectedly when a memorycard with a lower Speed Class rating is used.• When using the camera's internal memory, saving movies may take some time.• Depending on the file size of a movie, it may not be possible to save the movie in theinternal memory or copy it from a memory card to the internal memory.• The sounds of zoom control operation, zoom, autofocus lens drive movement, vibrationreduction, and aperture operation when brightness changes may be recorded.• The following phenomena may be seen in the monitor while recording movies.These phenomena are saved in the recorded movies.- Banding may occur in images under fluorescent, mercury-vapor, or sodium-vaporlighting.- Subjects that move quickly from one side of the frame to the other, such as amoving train or car, may appear skewed.- The entire movie image may be skewed when the camera is panned.- Lighting or other bright areas may leave residual images when the camera ismoved.• Depending on the distance to the subject or the amount of zoom applied, subjectswith repeating patterns (fabrics, lattice windows, etc.) may have colored stripes(interference patterns, moire, etc.) in them during movie recording and playback.This occurs when the pattern in the subject and the layout of the image sensorinterfere with each other; it is not a malfunction.