tashley
Subscriber Member
Really, don't shoot me. This is not science, this was not a lab. This was done more in the spirit of idle curiosity and a bit of fun since I had both systems with me. I made best but not extreme efforts to make a level playing field.
Shooting method:
IQ 180 on Alpa TC with Rodenstock 40HR, no movements, LCC, F8 for lobster pots and F11 for seascape. Tripod. Focus using Disto and HPF ring.
X1D with 30mm, same F stops as above, handheld, lobster pots focussed with MF magnified, Seascape focussed using a guess at hyperfocal.
Processing:
IQ180 import in C1 10 and given lens corrections but no sharpening. Export to 16 bit tiff. Import to LR and given a touch of clarity and vibrance (+12 +10) and then exported to Photoshop for resize to same pixel width as the X1D files. Back to LR, sharpening of 60/0.7/70/20.
X1D import in Phocus and given lens corrections but no sharpening. Export to 16 bit tiff. Import to LR and given a touch of clarity and vibrance (+12 +10) and sharpening of 60/0.7/70/20.
Minor efforts to make exposure and WB ballpark.
My takeaway is as I suspected: the quality of the two after the IQ has been re-sized is so similar that though some parts of the frame look a tiny bit better, others look a tiny bit worse - all so much within the possibility of small differences in exposure and focus. Effectively for my purposes they are as useful as each other unless I want to print larger than about 46" long edge.
If I had to guess, I'd say that tonal gradations might be very slightly more subtle on the Phase back but nowhere near enough to matter to me or any print purchaser I will ever have. I'd also say that the IQ has a DR which is closer to that of the X1D than I thought: theoretically it is worse but I see no evidence of that.
Fields of view are slightly different as is DOF.
Don't shoot me. I make these claims for my own use and am happy to share but will not defend other than out of friendly interest! If it gets to be a less than fun discussion, I will just delete it, and make the gallery private! Also, I won't share the RAWS because I have clogged up my large file sharing space by doing so with too many other files.
These are the scenes and the gallery link is here
Shooting method:
IQ 180 on Alpa TC with Rodenstock 40HR, no movements, LCC, F8 for lobster pots and F11 for seascape. Tripod. Focus using Disto and HPF ring.
X1D with 30mm, same F stops as above, handheld, lobster pots focussed with MF magnified, Seascape focussed using a guess at hyperfocal.
Processing:
IQ180 import in C1 10 and given lens corrections but no sharpening. Export to 16 bit tiff. Import to LR and given a touch of clarity and vibrance (+12 +10) and then exported to Photoshop for resize to same pixel width as the X1D files. Back to LR, sharpening of 60/0.7/70/20.
X1D import in Phocus and given lens corrections but no sharpening. Export to 16 bit tiff. Import to LR and given a touch of clarity and vibrance (+12 +10) and sharpening of 60/0.7/70/20.
Minor efforts to make exposure and WB ballpark.
My takeaway is as I suspected: the quality of the two after the IQ has been re-sized is so similar that though some parts of the frame look a tiny bit better, others look a tiny bit worse - all so much within the possibility of small differences in exposure and focus. Effectively for my purposes they are as useful as each other unless I want to print larger than about 46" long edge.
If I had to guess, I'd say that tonal gradations might be very slightly more subtle on the Phase back but nowhere near enough to matter to me or any print purchaser I will ever have. I'd also say that the IQ has a DR which is closer to that of the X1D than I thought: theoretically it is worse but I see no evidence of that.
Fields of view are slightly different as is DOF.
Don't shoot me. I make these claims for my own use and am happy to share but will not defend other than out of friendly interest! If it gets to be a less than fun discussion, I will just delete it, and make the gallery private! Also, I won't share the RAWS because I have clogged up my large file sharing space by doing so with too many other files.
These are the scenes and the gallery link is here
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