Tamron AF272NII700 ABOUT MACRO PHOTOGRAPHY Ref. Fig, EXPOSURE RATE Ref. Fig, Infrared Photography

ABOUT MACRO PHOTOGRAPHY (Ref. Fig. 12)

From infinity to the macro zone, you can use AF or MF operation. Since the distance scale and the magnification scale are imprinted side by side, you can get a general idea of the magnification when shooting a picture.

	272E
Minimum Focus Distance	0.29m
Maximum Magnification Ratio	1:1
Magnification Scale	1:10 - 1:1

*For the correlation between the photographic distance and photographic magnification, please refer to table 12.

EXPOSURE RATE (Ref. Fig. 12)

When the lens is moved outwards to increase the magnifications ratio for shooting close- ups, the actual brightness on the film decreases, and the effective F number changes. For auto exposure photographing, using an external exposure meter, or when using and exter- nal light-adjusting flash however, the exposure must be corrected for this decrease in brightness according to the magnification ratio. For the amount of the correction, refer to table 12.

DEPTH-OF-FIELD (Ref. Fig. 13)

With a camera equipped with a depth-of-field preview button or an aperture-stop-down mechanism, the depth of field can be directly observed through the viewfinder screen of your camera. For the operational details, read the instruction manual of your camera.

INFRARED PHOTOGRAPHY

Please be aware that there is no infrared index line on any models listed in this owner's manual. Therefore practically no black-and-white infrared film can be used with these lens- es.