Would Canon EF-M 28mm f/3.5 Macro IS STM Lens be okay for mirrorless scanning?

Very new to the hobby so please feel free to correct my mistakes.

Currently, I’m using a Vintage 1:4 Macro lens with adapters and extension tubes to do it, and it works, but there’s very aggressive distorsion and ca everywhere along the corners of the image. I don’t need Vlad’s test to confirm that the performance of this setup isn’t okay to get the most out of the full 24MP of my mirrorless camera.

This is technically the only macro lens native to the mounting system, and is widely available even if out of production.

But I already own adapters for the EF mounting system and Contax Yashica too.

Since anything would be an upgrade from my current setup, then, what would be a most conscious choice for me?

Is this for an APS-C format camera or Full Frame?

@TheHooligan95 , the lens you mention seems to be good enough…but investing in gear for a camera series that is out of production is something that I’d not do if I were in your position. EF-M lenses cannot be used on any other mount except if you use the adapter as an extension ring, which is not needed here and might also decrease imaging quality.

As you can take from other posts here, the Venuslens/Laowa (manual) and Sigma macro (Art) lenses have good reputation and many other lenses will be suitable and also keep their value - if you choose the mount wisely.

Ah, my thanks to @Digitizer, I’d missed the significance of the ‘M’ in the lens description. So this is ‘Canon’ APS-C, 22.3 x 14.9mm, very slightly smaller than normal APS-C from other manufacturers. Many, many suggestions for good lenses for 35mm copying on to APS-C on here and other forums and those Sigma and Laowa lenses are front runners but still a little pricy. On a very strict budget the cheapest option would probably be the venerable 55mm f2.8 Micro-Nikkor which is good on APS-C, it would need a very short extension ring, 12mm would be fine. The Canon FD f3.5 50mm macro also has a good reputation.

I’m new member. Target slide look very good with the 28mm 3.5 at 24mp in .raw and Canon M5. Same as my Bowens slide dup with Rodenstock Apo-Rodagon lens and Nikon D610 24mp in .raw.

Welcome @Papy, good to have a recommendation for the Canpn M, I guess it’s this lens:

https://www.canon.co.uk/lenses/ef-m-28mm-f-3-5-macro-is-stm-lens/

Which Apo-Rodagon lens would you be comparing it with?

Interesting also thart you’ve been using a Bowens Illumitran with a Nikon D610, I think this combination, D600 or D610, was used by Dave Green to scan the entire B&W archive of the wonderful English photographer, James Ravilious, as described here.

He used a 60mm f4 Rodenstock Rodagon and that too is a fantastic lens. The Illumitran had been converted to LED, and this was some time ago now (see his blog posts from early 2017). I’d love to know what they did because there wasn’t much choice with LED bulbs in those days, though the fact that it was only black & white helped.

Yes, the 28mm 3.5, at about 3cm of the film surface. The Rodenstock was my 50mm 2.8 enlarger lens. When I sold my Minolta/Beseler enlarger, the men own a Nikkor 50mm.

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My work with the Bowens was in 2013, and I use the flash (filtered) has the light source. Comparaison of slide and color and bw negative of 2013 with today show the resolution is the same, but the 2013 show color crossover and loss of low light detail. I stopped at that time because I was not satisfied of the result.. My error; using Lightroom only. And now, with Negative Pro, the same image are much better.

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