High Mag - _TNY_2412
This here is a juvenile raft spider (Dolomedes fimbriatus) photographed at 3.9:1 magnification and not cropped at all.
So how close is 3.9:1? Well, with a sensor that is 36 mm wide, this means that from the left to the right side of the photo (in the focus plane) is 36 / 3.9 = 9.2 mm (.36")
This is about as close as I can go with the MP-E65mm with the 5Ds camera since it has such high resolution. The high res doesn't cause more diffraction - but the one that is there is more visible so by going all the way in to 5:1 which is the maximum of the lens, I really don't see any extra detail compared to if I were to stay at 4:1 and then upscale it in post in Photoshop.
High Mag - _TNY_2412
This here is a juvenile raft spider (Dolomedes fimbriatus) photographed at 3.9:1 magnification and not cropped at all.
So how close is 3.9:1? Well, with a sensor that is 36 mm wide, this means that from the left to the right side of the photo (in the focus plane) is 36 / 3.9 = 9.2 mm (.36")
This is about as close as I can go with the MP-E65mm with the 5Ds camera since it has such high resolution. The high res doesn't cause more diffraction - but the one that is there is more visible so by going all the way in to 5:1 which is the maximum of the lens, I really don't see any extra detail compared to if I were to stay at 4:1 and then upscale it in post in Photoshop.