Disappointed in GM lenses?
What an absurd thought - well perhaps...
I'm an owner of Sony a7r3 and Fujifilm GFX 50r, both very fine cameras. I tested GM (G Master) lenses and I wasn't getting the quality that I have seen in professional photographer's pages. Something was off.
The sharpness and the colors were amazing but the feeling in the image was a bit artificial or plastic even. I wanted to photograph images into wallpapers and artistic paintings, not social media posts or videos. I wanted to have high end natural feel into my photos. Absolutely no chromatic aberration and realistic sharpness.
I was driven to find out where to get lenses that Phase One or Hasselblad uses. Those cameras that costs about 100keur or so. Soon I was searching large format stuff from Schneider-Kreuznach and Rodenstock. HR glasses made for the best cameras in the world. Now we're talking! The quality was pure and straight away in the fine art level. The superior image quality that you can find perhaps only from the top end art magazines.
Only real issue with these lenses is that they are made for large format 4x5 film cameras that are extremely bulky, expensive and pain to use.
I tested 6x9 folding camera and large format lenses with my digital GFX 50r back. I loved the quality that was receiving, but the camera setup was functional only in my studio, not exactly made for outdoors.
Then I found the solution... I bought an old but functional macro camera body for my lenses. I sawed some parts away and crafted bellows with super black fabric inside. There it was. Functional, light weight digital camera that you can easilly take with your hikes and shoot some amazing photos with it.
If you are interested to have one of these cameras, made for your own camera back. Canon, Nikon, Sony or Fujifilm, just ask me to save your time and effort with the reasonable pricing. I have studied every lenses and there is only few that are good enough to use like this. Others might be too wide for the cause or for your camera's sensor.