Technology

What is the difference between AVCHD and MP4 iframe?

What is the difference between the AVCHD format and the MP4 format? The Advanced Video Codec High Definition (AVCHD) format is suitable for creating AVCHD or Blu-ray Disc® recordings and watching on an HDTV. Whereas, MP4 is much easier to move, copy and upload to web sites or for playing back on portable devices. Thereof,

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Is 24-70mm good for portraits?

Especially useful when shooting full-length and environmental portraits, a 24-70mm or 28-105mm lens that maintains the f/2.8 maximum aperture throughout the zoom range provides a good balance between low-light performance and zoom flexibility. In both cases, such lenses are designed for use on APS or full-frame DSLRs. Thereof, What is the 85mm lens best for?

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