Seven 135mm tube lenses tested at 3.85x with the Componon 2.8/35 in a stacked setup.
Follow this link for the full test:
Rodenstock Scitex S-3 5.0/110 Scanner Lens Test Online
The Scitex lens S-3 110 lens, originally used for duty inside a professional grade Smart 340 flatbed scanner, was extracted and originally repurposed for use for photomacrography, but my latest testing shows the lens is really performs best as a tube lens with fantastic results.
Check out the unreal performance of the S-3 110 in the full test here on Closeuphotography.com:
Schneider Componon 100mm f/5.6 Tube Lens Test Online
The Componon-S 5.6/100 test is now online. The 5.6/100 is an excellent cost vs performance value tube lens available in 4 versions.
See the full test here on Closeuphotography.com:
https://www.closeuphotography.com/componon-s-100mm-lens-test
Schneider Componon 35mm f/4 Macro Lens Test Online
The Componon 35mm f4 is not very well known lens but nonetheless is one of the better macro lenses from 2-5x and as far as performance vs cost, it’s almost an impossible lens to beat.
Just posted the full test here on Closeuphotography.com:
https://www.closeuphotography.com/schneider-componon-35mm-f4-lens-test
Check out the test and let me know if you have any questions or comments.
Olympus 41.17mm f/4.82 Industrial Lens Test
Olympus 41.17mm f/4.82 Industrial Lens
This industrial lens is available now eBay now for $20 of so, is the performance worth the cost?
QUICK LENS SPECS
Olympus 41.17mm f/4.82 Industrial Lens
Lens type: microfilm reader lens
Aperture: f/4.87
Iris: fixed
Focal length: 41.17mm
Mounting Threads: none
Filter Mounting Threads: none
Forward or Reverse Mount: Reverse, small diameter forwards
Country of origin: Japan
Used Market Price: new condition, $20. USD on eBay.
QUICK LENS REVIEW
What I like about the lens
-Price
-Chromatic aberration correction
Things that I dislike about the lens
-Small image circle
-Sharpness could be better
-Slow maximum aperture
Performance at 2.1x on APS-C
The test setup was stacked with a Mejiro 5.6/90 scan lens, one of my standard tube lenses. Due to the slow aperture I would not use this lens focused at 2x on extension only. Mounting was easy, the lens slips inside of a Thorlabs SM1 lens tube which is easy to install in my studio setup with adapters.
100% view Olympus 41.17mm f/4.82 at 2.1x
The sharpness out of this lens at this magnification is decent, the chromatic aberration suppression was very good, much better than an enlarger lens, even better than APO labeled enlarger lenses like an APO-Rodagons.
Even with the great chromatic aberration control I would not recommend this lens due to poor coverage unfortunately. See the image above , the areas outside the rectangle are not sharp, even with image stacking.
For $20 the lens performance is okay and the coverage is no worse than most of the Nikon microscope objectives that I own, but I would not recommend the Olympus 41.17mm lens for macro photography. The Tominon 35mm f/4.5 has similar CA correction with much better coverage for just a few dollars more. See the Tominon test here on Closeuphotography.com: https://www.closeuphotography.com/tominon-35mm