Canon EF 100 mm f/2,8 L macro IS USM

[Bahrd]

Nie jest to cecha tego tylko obiektywu; TDP pisze o tym jasno:

The aperture displayed by the camera assumes an infinity focus distance; however, the effective aperture becomes darker at closer focus distances. The following chart details the amount of light loss incurred at the specified subject magnification.
[...ładna tabelka... - w skrócie -2EV (~f/5.6) przy 1:1]
AE (Auto Exposure) will automatically adjust for this aperture change, but a longer shutter speed is the result.

http://www.the-digital-picture.com/R...ns-Review.aspx

[BeatX]

Nie jest to cecha tego tylko obiektywu; TDP pisze o tym jasno:

http://www.the-digital-picture.com/R...ns-Review.aspx

rzeczywiscie, przeoczylem ten fragment.
dzieki za info!