marc aurel
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I bought the TS-E 90mm L Macro yesterday. Put it through some tests. Expecially I wanted to know if the image circle is large enough for the GFX. Test done frome a solid tripod using the Techart adapter. Results: amazing.
The first two images are 100% crops, taken at f/8. Full shift up (12mm). Focus point was in the middle of the shifted image. That is about midway between the optical centre of the unshifted lens and the shifted corner. I do that with all my TS-E lenses because none of them is free of field curvature. It usually gives me the best results.
The results are better than any other shift lens I have used. I can detect no distortion. Sharpness is excellent across the whole frame (at f/8) - right into the corners with full vertical shift (which is more demanding than a horizontal shift would be). No visible vignetting. Keep in mind that the image circle was not designed for a medium format chip.
Is it free from field curvature? No it is not. The third image shows 100% crops of the same scene at f/2.8. Crops on the left side are from an image where I focused on the shifted corner, crops on the right side are from an image where I focused on the entrance door. At f/2.8 you can not get both parts sharp in the same image. So field curvature is relevant for architecture photography. But from f8 on I see no problems with a flat target like this church.
Regards - Marc
The first two images are 100% crops, taken at f/8. Full shift up (12mm). Focus point was in the middle of the shifted image. That is about midway between the optical centre of the unshifted lens and the shifted corner. I do that with all my TS-E lenses because none of them is free of field curvature. It usually gives me the best results.
The results are better than any other shift lens I have used. I can detect no distortion. Sharpness is excellent across the whole frame (at f/8) - right into the corners with full vertical shift (which is more demanding than a horizontal shift would be). No visible vignetting. Keep in mind that the image circle was not designed for a medium format chip.
Is it free from field curvature? No it is not. The third image shows 100% crops of the same scene at f/2.8. Crops on the left side are from an image where I focused on the shifted corner, crops on the right side are from an image where I focused on the entrance door. At f/2.8 you can not get both parts sharp in the same image. So field curvature is relevant for architecture photography. But from f8 on I see no problems with a flat target like this church.
Regards - Marc
