A few days ago Trevor Allen from Trevor Allen Photography and myself were testing some lighting for an upcoming shoot, when Trevor had the idea to micro adjust our lenses. With Trevor recently switching over from Canon to Nikon and me also being a Nikon guy I seen the opportunity to compare and see from our different gear how it would shape up. Having the Sigma 50mm 1.4 Art lens (named the sharpest lens on the market) we thought it would be a good contender for this comparison, and man were we surprised. Having the Datacolor SpyderLensCal target already on hand, we went to work testing the Sigma and also the rest of our lenses.
The first thing we noticed when Trevor set up the Sigma 50mm 1.4 Art Lens on his Nikon D750 was it was WAY OF OF FOCUS. In fact, it was so out of focus that the AF fine tune menu of the Nikon D750 had to be adjusted 18 points in the plus direction to bring it to perfect focus! The results were very shocking as you can see in the photos below... Before and after images show at 1.6 how much of a difference it makes to have your lenses adjusted to your specific camera!
CLICK ON THE IMAGES TO SEE THEM IN FULL
Because of this testing we were able to adjust all of our lenses to our specific camera bodies and it really paid off, for me I was shooting a portrait project the next day for a important Medical center in the city, and Trevor is going to Cuba to start off his Destination wedding season with 2 weddings in a row. Whew!
As for the Sigma 50mm 1.4 Art lens,? it's a contender for me as one of the sharpest lenses I have used on my Nikon D810 and it voted very well for my portrait session. Check out this image from the project:
There is a video in the making:)
In conclusion I have to say that this lens does perform well at shallow depths and is extremely sharp at f 1.6 from all the lenses I have tested in the past, and makes case against to the Nikon 85mm 1.4 D , 135mm f2 lenses which are some of my favorite and sharpest lenses to date.