MINOLTA AF 50 mm f/3.5 Macro Lens Service Manual

■ The built-in flash and vignetting

• The built-in flash cannot be used over distances of 

less than 0.6 m (2.0 ft.).

• To prevent vignetting, do not use the lens hood.
* Vignetting is the darkening of the corners around the 

image that occurs when light emitted by the flash is 
obstructed by the lens hood, or by the lens barrel 
depending upon the focal length or shooting 
distance.

The built-in flash on the D100 has an angle of coverage 
suited to focal lengths of 20mm and greater. 
Vignetting occurs at a focal length of 18mm.

■ Using the lens hood

The lens hood blocks light rays that have harmful 
effects on pictures. It also helps to protect the glass 
surface of the lens.

• To facilitate attachment or removal of the hood, hold 

it by the lens hood attachment index (

A

) rather 

than its outer edge.

• If the lens hood is not correctly attached, vignetting 

may occur.

• The lens can be stored with the lens hood attached in 

the reverse position.

D300-series/
D200/D100

• 18mm/1 m (3.3 ft.) or greater
• 24mm or longer/No restriction

D90/D80

• 24mm and 35mm/1 m (3.3 ft.) or greater
• 50mm or longer/No restriction

D70-series/
D5000/D3000/
D60/D50/
D40-series 

• 24mm/1 m (3.3 ft.) or greater
• 35mm or longer/No restriction

• Be sure that the lens 

hood mounting 
index (

C

) is aligned 

with the lens hood 
setting index (

B

) 

3.