MACRO/CLOSEUP*Graflex Horseman Linhof Tachihara Sinar Toyo Wista 4x5 8x10 camera

Description

The apertures marked on lenses are correct ONLY when you focus at infinity. For macro & close-up photography, the ACTUAL APERTURE is smaller than what's marked on the lens. To correct this, you need to adjust the exposure settings suggested by your light meter (unless you have thru-the-lens metering).
This handy laminated card gives the exposure adjustments (increased exposure times or larger aperture openings) that you need to use.
For image magnifications from 1/8 to 3 times life size.
Focal lengths covered range from 50mm - 450mm lenses.
The info on this card is applicable for any camera format.
Lens-to-subject focus distances for each lens at each magnification are provided. You simply measure this distance and match it to the card to get the required exposure adjustment.
This listing is for 1 card.
Two cards are used for the photo to show there's different info on each side of the card.
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