
https://www.closeuphotography.com/35mm-lens-test
Lens lineup includes:
Canon Macro Photo 35mm f/2.8 Lens - Extension
Canon MP-E 65mm 1-5x Macro Lens -Normal
Copal 35mm f4 E18C Printing Machine Lens - Stacked
JML 21mm f/3.5 Lens - Extension
Noritsu 32mm f4 Printing Machine Lens - Stacked
Schneider APO-Xenoplan 35mm f1.8 Industrial Lens - Stacked
Schneider Componon 35mm f4 (at f/2.2) Industrial Lens - Stacked
Schneider Xenon 35mm f/2 Industrial Lens - Stacked
Tominon 35mm f/4.5 Copy Lens - Stacked
This test was a follow up to an earlier test at 3.4x from last year: https://www.closeuphotography.com/three ... -lens-test
Camera: Sony A6300, model # ILCE-6300
Sensor size: APS-C. 23.5 × 15.6 mm. 28.21 mm diagonal. 3.92 micron sensor pitch
Flash: Godox TT350s wireless flash x 2 with one Godox X1s 2.4G wireless flash transmitter
Vertical stand: Nikon MM-11 with a Nikon focus block
A series of images was made with each lens in 4 micron steps and the sharpest frame was then chosen using Photoshop at 100% view. Separate images were selected for each crop area as needed. Each image was processed in PS CC with identical settings with all noise reduction and lens correction turned off, all settings were zeroed out (true zero) and the same settings were used for all of the images. All of the crop images shown here are single files. None of the crop images are stacked.
These are the center crop areas at 100%, click on an image to open a full size version, you can also right or two finger click and download.
You can also check out the off-center and corner crop images on my site, link at the top.
3.4X 100% VIEW CENTER CROPS: FOCUS BY EXTENSION
Canon Macro Photo 35mm f/2.8 Lens
Canon MP-E 65mm 1-5x Macro Lens
JML 21mm f/3.5 Lens

Best: Canon MP35
3.4X 100% VIEW CENTER CROPS: STACKED LENSES
Copal 35mm f4 E18C Printing Machine Lens
Noritsu 32mm f4 Printing Machine Lens
Tominon 35mm f/4.5 Copy Lens

Best: Noritsu 32mm
3.4X 100% VIEW CENTER CROPS: FAST STACKED LENSES
Schneider APO-Xenoplan 35mm f1.8 Industrial Lens
Schneider Componon 35mm f4 (f/2.2) Industrial Lens
Schneider Xenon 35mm f/2 Industrial Lens

Best: SK Componon and Xenon.
Standouts of the test?
The Noritsu 32mm, the sleeper lens of the test, slow at f/4 but very consistent and zero CAs, and the Componon / Xenon were crisp clean and sharp edge to edge even at f/2.2!
2500px size image with the SK Xenon:

Any questions or comments welcome.
Best,
Robert