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Note: this camera was first sold in Jun 2006. There may be newer versions available.

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Sony Alpha a100

HQ Grade: B-

A	is outstanding and exceptional, rated in the top 10% of digital cameras.
B	means they are good, with some standout features.
C	means they are mediocre, and probably more trouble than they are worth.
D & F	mean they are absolutely awful or old. Avoid at all costs.

4 out of 5

"sony a100"

4 out of 5

"Excellent Introductory to DSLR Cameras"

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This camera is ranked

36th of 51 in SLR/Professional
70th of 102 in 9 and 10 Megapixels
15th of 41 in Sony
47th of 107 in $200 - $300

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Possibly Answered (20 points for the best answer)

Frenk (Frenkneedshelp) 0 pts

August 4, 2008 2:25 PM

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Hi, I've got a 100-500 MD lens with a convertor on my Sony A100. I have tried everything but I can not make a sharp picture? Any sugestions. ;-)

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by James DeRuvo (byjamesderuvo) 58443 pts

August 5, 2008 4:45 PM

Sure, sell the MD lens and converter and use the money towards a native Sony lens. It's the converter that's causing your sharpness issues.

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bukit97 (bukit97) 12611 pts

August 22, 2008 11:58 PM

The main problem is the converter is not made by Sony, or Minolta for the matter.

Converters effectively increase the distance between the lens and the sensor. This throws the image out of focus and the distance markers on the MD lens will be completely out.
You probably need another lens on the converter to refocus the image to fall on the sensor. This brings in another issue of lens quality to match the originals.
Unless the converter is manufactured by Sony, I would not expect to get a good picture out of it.

If at all there is any suggestion, it is to strip the mounting ring of the adapter to replace the mounting ring of the MD lens so that the lens can mount directly on the camera without a ' middle man '.

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by James DeRuvo (byjamesderuvo) 58443 pts

August 25, 2008 1:23 PM

Not to mention making everything slower light wise. You lose 1-2 stops that way.

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Hi, I've got a 100-500 MD lens with a convertor on my Sony A100. I have tried everything but I can not make a sharp picture? Any sugestions. ;-)

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