Tamron di意思

"Tamron Di" is a designation used by Tamron for some of their lenses. The acronym "Di" stands for "Digital" or "Diagonal", indicating that these lenses are designed specifically for digital cameras. Tamron Di lenses are optimized for the smaller image sensors found in digital cameras, which is different from traditional SLR lenses that were designed for larger film sensors.

Tamron Di lenses are designed to provide the best image quality when used with digital cameras. They often have a smaller image circle compared to lenses designed for film cameras, which reduces the amount of glass needed and can result in lenses that are more compact and lightweight.

Tamron has used several variations of the Di designation over the years:

• Di: These lenses are designed for digital SLR cameras and provide the best image quality when used with digital sensors.
• Di II: These lenses are designed specifically for APS-C sized digital SLR cameras. They will not cover the image circle of full-frame cameras.
• Di III: These lenses are designed for mirrorless cameras with APS-C or smaller sensors.
• Di VC: These lenses feature Vibration Compensation (VC), Tamron's image stabilization technology.

When choosing a Tamron Di lens, it's important to match the lens to the correct type of camera body. For example, a Tamron Di II lens will not be compatible with a full-frame digital SLR or a film SLR camera because it is not designed to cover the larger image circle required by those cameras.