Ricoh DW-6 & Nikon WC-E75 Corner Comparison
Sigma DP1 > Wide Angle > Ricoh DW-6 & Nikon WC-E75 Corner Crops > Ricoh DW-6 & Nikon WC-E75 Center Crops |
Here's a closer look at the two best performers in our test, the Ricoh DW-6 & Nikon WC-E75
In the following series, we'll show the difference between mounting these converters with a conventional step ring (46-43 for the Ricoh, and 46-52 for the Nikon) and then using a custom coplanar 52-43 step ring for the Ricoh, and mounting the Nikon directly onto our 52mm adapter
The difference between using the Ricoh DW-6 mounted to the Sigma 46mm lens adapter with a conventional 46-43 step down ring and with our custom coplanar ring (this design places the conversion lens as close the DP1s lens as it would be without a step ring) is only about 3.5 millimeters, but as you can see the results are significantly better. The same applies to the Nikon WC-E75 - mating it directly to our 52mm adapter produces a far better image than using the Sigma adapter with a 46-52 step ring.
All images shot raw and batch converted in SPP 3.2, saved as original full size jpeg. All 200 x 300 crops shown at 100%.
|
|||||||||||
 |
 |
 |
|||||||||
f/5.6 |
||||
 |
 |
 |
 |
|
f/8 |
||||
 |
 |
 |
 |
|
f/10 |
||||
 |
 |
 |
 |
|
Not surprisingly, neither lens is very impressive at f4, though you can see that the lenses mounted on the Lensmate 52mm adapter are already showing less color fringing and the images are a little clearer. By f8-f10, the lenses on the Lensmate 52mm adapter look pretty respectable, and f11shows no improvement. Note also the Ricoh DW-6s lack of color fringing using the 52mm adapter compared to using a 46-43 step ring. The Nikon WC-E75 on the 52mm adapter is very good right to the corner now with almost non-existent color fringing.
So how do the centers look? Click here
