Lenses that support changes in the AF speed ... EF 400mm f /4 DO ... 11-24 mm f/4L USM EF 50mm f /1. ... STM EF 35 mm f /1.4 L II USM EF ... S 18- 135mm f /3. ... -105mm f/4L IS II USM ... mm f / 4 -5. ... ... 16-35 mm f /2.8 L III USM EF ... 18-55 mm f / 4 -5. ...
Macro Flash (Sold Separately) The Canon Macro Ring Lite MR-14EX or the Macro Twin Lite MT-24EX enable fully automatic macro flash photography from life-size to 5x magnification in E-TTL autoflash mode. Flash Range with Macro Ring Lite MR-14EX and MP- E 65 mm Lens
When attached to the EF-S60 mm f /2.8 Macro lens, the 250D, 500 and 500D close-up lenses enables close-up photography. The magnification will be as follows
Specifications for the EF 180 f /3.5 L Macro USM Marketed April 1996 Lens Construction (group) 12 Lens Construction (element) 14 No. of Diaphragm Blades 8 Minimum Aperture 32 Closest Focusing Distance (m) 0.48 Maximum Magnifcation (x) 1.0 Filter Diameter (mm) 72 Maximum Diameter x Length (mm) 82.5 x 186.6 Weight (g) 1,090
The actual aperture (effective f-number) results in a darker image (f-number increases) as the subject's distance becomes shorter (magnification increases). This does not cause exposure problems for normal picture taking (the exposure problems for normal picture-taking (the MP-E 65mm f/2.8 1-5x lens cannot take normal pictures). However, for macro photograph, you cannot ignore the effect f -number.
Setting the Exposure Since there will be a slight exposure error , using AE metering is not recommended. Take test shots first or use a handheld meter to determine the proper exposure based on the effective f-number. If you use the f-number displayed by the camera, use the exposure factor in the table below to convert it.
