Not trying to turn this into a pi55ing contest, but LenScore has the 400E as having more resolving power than the 800E, scoring 1466 to 1323, but I would suggest for wll intents and purposes they are very close. The 400G gets a score of 1290, again very close.
The 400E also gets the highest overall score from LenScore at 1427, compared to the 800E at 1356 and the 400G at 1344. The 400E is the sharpest extreme tele lens they have tested and is only bettered by the Zeiss 85 f1.4 Otus at 1647, the Leica APO-Summicron 50 f2 at 1622, the Zeiss 55 f1.4 Otus at 1532 and the Leica Summilex 50 f1.4 at 1578. However, for overall score, the 400E is still second best of all the lenses at 1427 only behind the Zeiss 85 f1.4 Otus at 1459.
What does all this mean? Well, the testing was done on a 200Mp specially designed sensor, ie it takes a 200Mp sensor to see these minor differences in socre between the top performing lenses. They also take resolution measurements at different camera to subject distances, also across the lens frame and at different apertures, so quite a comprehensive set of readings to come to an overall result, not just at one camera to subject distance like just about every other testing site.
I think you\'ll find that your comment about the 400E and the 400G being a dead heat in real world shooting is probably similar to the 400E and 800E in real world shooting, ie very close if you were twice the distance away as the 400 when using the 800. What you are probably seeing is that the 800 has more reach and therefore gets closer to the subject and thus not needing to go as far as to pixel peep, whereas the 400E and 400G are the same focal length and therefore you pixel peep at the same size. To test the 800 against the 400 correctly, you would need to be twice as far from the subject as the 400.
Not trying to trun this into a pi55ing contest, but LenScore has the 400E as having more resolving power than the 800E, scoring 1466 to 1323, but I would suggest for wll intents and purposes they are very close. The 400G gets a score of 1290, again very close.
The 400E also gets the highest overall score from LenScore at 1427, compared to the 800E at 1356 and the 400G at 1344. The 400E is the sharpest extreme tele lens they have tested and is only bettered by the Zeiss 85 f1.4 Otus at 1647, the Leica APO-Summicron 50 f2 at 1622, the Zeiss 55 f1.4 Otus at 1532 and the Leica Summilex 50 f1.4 at 1578. However, for overall score, the 400E is still second best of all the lenses at 1427 only behind the Zeiss 85 f1.4 Otus at 1459.
What does all this mean? Well, the testing was done on a 200Mp specially designed sensor, ie it takes a 200Mp sensor to see these minor differences in socre between the top performing lenses. They also take resolution measurements at different camera to subject distances, also across the lens frame and at different apertures, so quite a comprehensive set of readings to come to an overall result, not just at one camera to subject distance like just about every other testing site.
I think you\'ll find that your comment about the 400E and the 400G being a dead heat in real world shooting is probably similar to the 400E and 800E in real world shooting, ie very close if you were twice the distance away as the 400 when using the 800. What you are probably seeing is that the 800 has more reach and therefore gets closer to the subject and thus not needing to go as far as to pixel peep, whereas the 400E and 400G are the same focal length and therefore you pixel peep at the same size. To test the 800 against the 400 correctly, you would need to be twice as far from the subject as the 400.
