EF50mm f/2.5 Compact Macro: How you set exposure.

Article ID: ART122444 | Date published: 05/12/2015 | Date last updated: 08/17/2015


EF50mm f/2.5 Compact Macro: How you set exposure.


Effect f/numbers and Exposure Compensation

As the lens focuses closer to a subject the amount of light reaching the film decreases. Exposure Compensation is not necessary due to TTL (Through The Lens) exposure metering. When using a separate exposure meter or non-TTL flash, it is necessary to compensate the exposure reading .

Magnification and Exp sure Factors

The exposure factor refers to the amount of exposure compensation necessary for the proper exposure when using a separate meter or non-TTL flash. The tables below show the exposure factors covered into an aperture compensation number for various magnifications

*One exposure degree equals +1f/stop



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