Note that I white balanced on sunlight, in the previous recorded images the blue gain was quite high - I guess those fluorescent lights in the room are low on blue.

The light levels varied left to right and top to bottom. Could not help that much, again, we need a more controlled environment if we are going to be serious about this.

Shot 1&2 - Canon only target at MOD (300mm from first vertex), focus MOD zoom wide.

Shot 3 same with camera light blanketed.

Shot 4 ruler at 300mm, focus MOD, zoom wide. Camera light blanketed.

Shot 5 same as 4 with Adapter in place except distance from vertex approx. 295mm. Camera light blanketed. Note image sticker says Canon only - wrong.

Shot 5&6, adapter in place, target at approx. 295mm, zoom wide, focus at best focus which was infinity! No light blanket.

Shot 7 same as above with light blanket.