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TTArtisan unveils its first autofocus lens for L-Mount – and it’s a cheap portrait prime
The f/2 aperture and longer focal length are geared towards portraits. Despite using a metal ... The L-Mount variant measures 72mm long, making it a more compact choice. The TTArtisan AF 75mm ...
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Depth of field: What do I need to know?
A deeper depth of field is used in this portrait ... rays coming from a long distance converge. The distance between the principal focal point and the lens is the focal length.