Three weeks ago I got a new desktop computer to replace my “old” one. Both were custom built machines, both made by Primisys, a small IT company in Oregon. My “old” computer was built just over five years back and at the time was pretty much state of the art. 32 GB RAM, a one TB solid state drive for programs, and two 2 TB internal spinning drives for data. All my images were kept on an external JBOD (Just a Bunch Of Drives) connected by via an eSATA card. Of course, all the images were backed up — two copies — on other standalone drives.
But…it was getting a bit slow when faced with stitched Nikon D850 files, the graphics card needed to be undated, and the JBOD concept was giving me some worries about future compatibility. Well, OK, to be brutally honest I just wanted to indulge myself with a new computer.
A few facts: I’m not a gamer and I don’t do video and have no plans to indulge in either. Consequently I wanted a computer primarily for running Lightroom and Photoshop, and one that would easily handle very large files. I wanted a graphics card with enough VRAM for some of the newer third party software based on AI (such as Topaz’s DeNoise AI), and discrete drives for (a) programs, (b) the Lightroom catalog and its ever-growing lr.data file, (c) data (stuff from Office 365, my downloads folder, teaching programs, etc., etc., etc.), and (d) recent images. And I wanted a quiet machine, since I would be sitting close to it in my office.
After a good bit of discussion with Aaron Welliver at Primisys we agreed on the specs. I said “do it,” went off on a shoot for two weeks, and got home to the new box. OK, for the other computer nerds out there — notice that I count myself in that group — here is a list of what I got.
Gigabyte Z390 Aorus motherboard
64 GB Corsair Dominator Platinum RAM
Intel Core i7-9700k processor
OS drive: 1 TB M. NvMe solid state drive
Lightroom drive: 2 TB NvMe solid state drive
Three 6 TB Western Digital Black 7200 RPM drives (one for data, two for images)
Nvidia Quadro 4000 Pro graphics card with 8 GB RAM
Seasonic Prime Titanium 650 watt power supply
All of this in a Fractals Design Define R6 case
Windows 10 Pro
I have the same wireless keyboard and monitors connected (two NEC PA 27-inch displays), just as before.
I’m extremely pleased with my new computer. It’s exactly what I wanted; it’s fast, powerful, and very quiet. The only hassle was reinstalling programs and transferring data, which took a couple of days.
I rarely need to open any of my older digital images, so these are now on a couple of standalone USB3 drives. If I would need access to one of those files, my Lightroom catalog would tell me the image was off-line and all I would have to do is plug in the correct drive. No big deal for the few times I might need to do so. I file all my images in a year/month/shoot organization, and the standalone drives are labeled. After cleaning out my old “data” drives, I realized that I really had less than three TB of “data” that I needed to keep. Consequently, my new 6 TB “data” drive is now subdivided into two folders, one for “data” one with about two TB of “images.” I ended up with roughly eight TB of images copied onto the new computer, with the third 6 TB drive totally clean to start 2020. And, it goes without saying, it’s all backed up (and before you ask, I use ViceVersa Pro, a Windows-only program, for file comparison and backup).
Primisys Computers & Network, www.primisys.com.
NIKON D850 LENS PROFILE PROBLEM?
Recently I was doing some night sky photos using my D850 and the Nikon 20mm f/1.8. When I looked at the shots in Lightroom I noticed something odd: in the darker areas, especially toward the corners of the frame, a series of faint concentric rings were visible, apparently emanating from the center of the image. I did not have any sort of filter on the lens, so this could not be some sort of interference pattern. What was happening?
I started doing a lot of testing. I finally discovered that these “rings” would disappear if I unchecked the “lens profile correction” in the Lens Corrections tab in Lightroom’s Develop module.
Was this a bad lens profile or what? I considered some options:
What on earth was going on here? Was this a problem specific to the D850?
Now totally frustrated, I looked at my Develop settings in Lightroom. If sure would be great to be able to use those lens profile corrections to solve the distortion and vignetting problems that all wide angle lenses have. I discovered that if I set the sharpening Amount slider to zero the rings disappeared, but in my normal RAW file workflow I generally do want to apply some sharpening. Back at the Lens Profile tab, I left the “profile correction” on, but pulled the sliders for Distortion and Vignetting at the bottom of that tab to zero, effectively negating the profile. Sure enough, the rings disappeared. But wait…how about separating those two sliders, adjusting one but not the other? The culprit seemed to be the Distortion slider. I could have the Vignetting slider all the way to the right, as high as possible, but the moment I moved the Distortion slider from the zero position the rings started to show.
As I stated earlier, I’ve only seen this in very low light shots, and haven’t tried any tests with longer focal lengths. Has anyone else shooting with a D850 seen similar results? Right now I’m thinking that when I’m processing images taken with the D850 in very low light I will leave lens profile correction turned on, but pull that Distortion slider to the far left before slowly moving it to the right.