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Two 28mm lenses compared.
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PostPosted: Mon Mar 21, 2011 8:03 pm    Post subject: Two 28mm lenses compared. Reply with quote
I recently obtained a Sears 28/2.8,1:4 macro on eBay. My first shot with it was @ 1:4 of a flower in the house @ f11 & I thought it looked decent.






However, when I shot outdoors I found the images from f2.8 up to f5.6 to be from very soft to soft. Quite disappointing! I decided to test it against my Vivitar 28/2.8, (Bauer made) with a test chart shot from a distance of 0.7M. Here are the results:


Sears @ f4




Vivitar @ f4




Sears @f8




Vivitar @f8




The two lenses get closer in IQ @ f8. Here is a side-by-side top right crop @ f8 with the Sears on the left.

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