PRODUCT DESCRIPTION 
The Minolta AF 24mm F/2.8 is a compact lens, about as small as you're going to get.  Externally, it's nearly identical to the Minolta 28mm F/2.8, the only thing different is the larger front element on the 24mm lens.  Build quality is very good.  This model is from the original 1985 design.  It has a satin black finish with white index marks along the focus distance window.  It also has an Infra-red focus index, the red dot on the aperture scale.  The lens says "Japan" so I'm assuming it's made in Japan.  Focusing is quick and accurate, especially with the Sony A700.  Manual focusing is a chore, since the ring is slightly stepped down at the end of the barrel, plus the ring is very narrow and hard to manipulate with your fingers. 

The lens is multi-coated with the mild magenta/green look.  The same as most other Minolta lenses from this era.
Filter size is 55mm.  Sharing this size in the Sony lineup are: 50mm F/1.4, 50mm F/2.8 macro, 55-200mm, 100mm F/2.8 macro, 75-300mm, 35mm F/1.4 and the 18-70 kit lens.
Filter use.   Regular filters cause no additional vignetting on full frame or APS-C cameras.
Lateral color fringing.  I see some red fringing on the sides.  Stopping down doesn't help, but it's not really noticeable unless you look at your pictures at 100%.  Very similar to the 28mm F/2.8 lenses.  Average control here. 
Bokeh.  Depends, close at F/2.8, a little harsh, stopped down to F/4-5.6 it's smoother, without the donuts.  Longer subject to background distances look good.
Color looks nearly the same as other Minolta/Sony lenses. 
Coma.  Strong at F/2.8, better at F/4 and nearly gone at F/5.6.
 
Product ($299)
SN: ****2031/ ****7562
Condition: Excellent (EX)
Warranty: Sold As It Is. No Warranty
 What You Will Get
 - Front/ Rear Cap
 
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Black Market Camera 
Peninsula Shopping Centre (NOT Peninsula Plaza) 
#03-30/31/32 
Opening hours: 12.30pm - 7.45pm daily 
Tel: 6336 6349 
Next to Funan Mall 
Nearest MRT: City Hall MRT