1 hour ago, jlaity said:

A few more MFO-1 A/B tests. Nothing special, just tried to find a subject where you can see center to corner sharpness. 24, 26, and 28.jpg in full resolution from a Canon R5 mk1, Canon RF 100mm macro, Nauticam housing/port. Let me know if you can tell which have the filter on or off.

https://www.dropbox.com/scl/fi/ttmq2ki1uv07p6lttdgz0/20250628_pv_0024.jpg?rlkey=wqk2ndpe901w2r1pzvynztbvy&st=o6ih8ko0&dl=0

https://www.dropbox.com/scl/fi/7jug2ftd2hp8oukirgj1s/20250628_pv_0026.jpg?rlkey=xwaywsaboern5h48gneq85u4z&st=o55cybn6&dl=0

https://www.dropbox.com/scl/fi/holfbdj9jej0raifpfgho/20250628_pv_0028.jpg?rlkey=hzhg54nq8j7nikff7j8egwhv1&st=ndk47qwz&dl=0

Please include photos, not links.

Scaled to 1600 px wide

Unfortunately the forum software reduces these images to 1200px wide - even if you donwload the image it's 1200 px wide. The best way to compare views seems to be as follows:

• Open link in dropbox

• go to top RH corner and choose magnification I picked 50% gives you a better sense of image sharpness I think

• Scroll around in top LH corner of each image to bring up a polyp that appears to be in focus.

• swap between tabs to compare.

Here's a small crop snipped from each of 24 and 26 images side by side. I just picked an area with polyps that looked in focus. Top LH corner.

To me there's not much to pick between them, maybe an edge to 24, you can make out texture on the polyp arm coming up towards mid frame.. Didn't include 28 as it has a quite different image scale.

To me, 24 (the MFO-1 shot) has a small amount of increased sharpness on the left side, compared to the other two without. But it’s so so slight, it isn’t worth the cost or weight IMO. I plan to go back to my SMC-1 on a flip adapter and possibly sell the MFO-1, if I can. I’m disappointed with this purchase.