Okay, on this drappy grey weekend, I have been looking at my workflows, to see if I could find anything new or if something could be done to optimize the process. Well, I also did my laundry.
Anyways, no more jabbering, let’s get to the point. This is an image shot with 4 different backs at mid day in broad daylight. Something that you would think should be fairly simple task for a $30,000 digital back. The images were taken by Capture Integration and can be downloaded from their website as full resolution tiffs, all developed with default settings in their own native software by Capture Integration.
The files all looked fine, so I thought let’s try and squeeze them a little. I gave them all the same treatment, +4 stop on the exposure slider in Lightroom. I cropped a selection and enlarged each to 100%, and I put them side by side to see if there was any difference.
[attachment=18636:flat_crop.jpg]
I won’t disclose which is which yet.
[attachment=18637:optimized_crop.jpg]
The next step was to try to optimize the “damaged” files back to normal. I’ve adjusted each file individually and used only curves and unsharp mask in Photoshop. No color correction in this round.
I found that the 2 images at the top could not take the same amount of sharpening as the two bottom files. The sharpening would make the image much too noisy.
The backs involved were: Leaf Aptus 10, Phase One P40+, P65+, and Hasselblad H3D II 50MP.
The test also showed the benefit of Phase One’s and Hasselblad’s lens correction software. I found areas where the Leaf Aptus back were showing fringing in the highlight, something that both Hasselblad and Phase One to some degree compensate for in their software.
Equipment: Both the Phase One digital backs were mounted on the Mamiya 645 camera using the 150mm D lens. Both the Hasselblad and the Leaf Aptus10 were used on a Hasselblad H camera with a Hassalblad HC 150mm lens. All images were shot at F.8
Link to Capture Integration's test,
linkI own 2 Leaf backs myself and work daily with both Phase One and Hasselblad digital backs professionally as a digital tech, and have done so for more then 7 years.
Sincerely,
Esben