John, very happy indeed. The 5T and 6T individually have gotten me the results I've wanted without the need to stack them yet. Image quality is fantastic though they can add a bit of CA sometimes, particularly at f/1.8 or f/2. Luckily the 105mm f/1.8 is practically CA free, though not LoCA, so it works out great. I can't say I would use the closeup lenses with a lens that already exhibits CA, the 105mm f/2.5 would not take kindly to these. The 105mm f/1.8's lack of CA combined with it's lack of color cast makes it perfect for capturing delicate tones without needing a lot of PP to correct the colors. The slow and precise focus ring really helps here!
Gary, yes. Yes I did and it was well worth it! Though it was no challenging task. It was a beautiful warm day and I had nowhere better to be. ☺
