Question which of my two manual 28/2.8s do I want to carry? I have both a M28/2.8 version 1, and a Vivitar 28/2.8 Close Focus SMS k06 variety considered to be one of the good Vivitar 28s. As I have not seen these two directly compared I decided to test them. I did not have liberty to go out and shot in a controlled fashion so I set up an indoor controlled shot. My test methodology; I chose to shoot both lenses at f2.8, f5.6 and f11 @ iso 80, all from same tripod focusing on same subject (the sign letters) using live view at 10x. I shot with the mirror locked up using a wireless remote, the flash used same settings for both lenses, and no post processing was done. I was surprised at how equally the two lenses actually performed when viewed at 100%. In fact I found only two issues and one preference that I used in order to make a choice. So come on and see.
M28/2.8 target @f5.6 (I uploaded TIFFs but they were converted to JPG by photobucket)
Vivitar 28/2.8 target @f5.6 (I uploaded TIFFs but they were converted to JPG by photobucket)
The Lesser of Two Evils:
M28/2.8 @2.8 purple fringe example
Vivitar 28/2.8 @2.8 purple fringe example
Corner Sharpness Comparison:
M28/2.8 @f11 upper right corner sharpness of barcode number
Vivitar 28/2.8 @f11 upper right corner sharpness of barcode number
I Love a Good Star Burst:
M28/2.8 @f11 star burst
Vivitar 28/2.8 @f11 star burst
Drum Roll:
I picked the M28/2.8, but your milage may vary.
Last edited by Schmidlapper; 01-07-2013 at 06:11 PM.
Reason: 100% crop examples added