Thing should have gone a bit smoother if only I took a bit more time preparing.
Since last time, I have changed my file system to APFS which allows normal software update via Apple.
As such I just needed to download and restart to install. Or so I thought.
I was basically taking a chance as I didn't put back the stock GPU.
So when it reboot, nothing kind of happened. I tried holding Alt, or Command R to get under the hood. I tried a few times. I am using bluetooth keyboard and touchpad so they can be a bit iffy when doing the bootup and holding down keys kind of operation. But apparently it can be done. I suppose the bluetooth connection is pretty low level and is connected right away without the OS fully loaded so you can work on it right away.
Since I couldn't boot up so actually got my old macOS USB drive and boot with Alt down and boot to base macOS. I used Time Machine to go back to 10.14.5.
I got everything running and I made sure I removed the non native GPU and put the stock GPU back before I started my download, install and reboot route.
It seems like I need to remove the USB drive, or I am not sure as I thought unless you hold down Alt otherwise it doesn't matter.
In any event I was able to boot back into the user login screen. And the patch program automatically asked to update the patches. Then reboot.
After everything works like I am sure it's the latest 10.14.6, then I powered down, removed the stock GPU card and put back the newer more powerful but not natively supported GPU.
It was on my third trial that everything worked.
Tuesday, July 30, 2019
Friday, July 19, 2019
AF DC-NIKKOR 135mm f/2D
This lens is a mystery. You can find information online from third parties as to how to use it but you can't find anything from Nikon. Nikon Imaging does provide a pdf here http://download.nikonimglib.com/archive2/YcrVZ00oXSZ102eGHPE061XWFw47/AFDC135_2D_(27_DL)02.pdf
However it makes no mention of the effect of using the combinations of lens f/stop and defocus image control f/stop. For that it only provides three pictures with defocus at neutral, R and F. There are lots of mid-wife tales on how to use it but they are hardly definitive. And to add to the cacophony of half truths here is some more ...
For the longest time I thought you twist the defocus image control ring to the R numbers to "enhance" blur behind the focused subject, the R(ear) as in rear; and enhance the blur in the foreground if you twist the defocus image control ring towards the F(oreground or front). If you set your aperture to f/2, then you may set the defocus ring at 2 F or R, so on and so forth. Of course you can leave the defocus ring at the neutral position rendering no defocus effect. Notice that, there is an additional click beyond the 5.6 on both sides of F and R, it's not marked but I guess it could be an 8 but who knows.
My question is if I set my f/stop at f/4, must I only set the defocus at 4 either F or R direction or I can set it at 5.6 or even the unmarked 8? Or I can set it only from 4 or below only, meaning 4, 2.8 or 2 in either directions. I understand mechanically I can set whatever what I am trying to find out is what is supposed to according to NIKON, the engineers behind the lens. I think Matt Gringer's videos provide the answer, i.e. if you shoot at f/2, you should only stay at f/2 R or F. However if you shoot at f/5.6, you can choose all the defocus points in between the 5.6 F or R, i.e 4, 2.8 or 2. (Gringer was on a trip in HK and he visited a Nikon center there and some guy explained to him how it's supposed to work he didn't know what he was doing with the defocus ... Granger also repeated this (what the guy told him) on another of his video, I just couldn't find the video now, back then he called himself the Nikon guy).
Again, I never find anything direct from Nikon.
Or never mind.
From shooting with this lens for more than a year, all I could say is given some shooting conditions, it has the most offensively ghastly chromatic aberrations ever, period.
(the effect of the defocus is subtle so I don't bother to test it or use it myself .... I know it's ridiculous)
However it makes no mention of the effect of using the combinations of lens f/stop and defocus image control f/stop. For that it only provides three pictures with defocus at neutral, R and F. There are lots of mid-wife tales on how to use it but they are hardly definitive. And to add to the cacophony of half truths here is some more ...
For the longest time I thought you twist the defocus image control ring to the R numbers to "enhance" blur behind the focused subject, the R(ear) as in rear; and enhance the blur in the foreground if you twist the defocus image control ring towards the F(oreground or front). If you set your aperture to f/2, then you may set the defocus ring at 2 F or R, so on and so forth. Of course you can leave the defocus ring at the neutral position rendering no defocus effect. Notice that, there is an additional click beyond the 5.6 on both sides of F and R, it's not marked but I guess it could be an 8 but who knows.
My question is if I set my f/stop at f/4, must I only set the defocus at 4 either F or R direction or I can set it at 5.6 or even the unmarked 8? Or I can set it only from 4 or below only, meaning 4, 2.8 or 2 in either directions. I understand mechanically I can set whatever what I am trying to find out is what is supposed to according to NIKON, the engineers behind the lens. I think Matt Gringer's videos provide the answer, i.e. if you shoot at f/2, you should only stay at f/2 R or F. However if you shoot at f/5.6, you can choose all the defocus points in between the 5.6 F or R, i.e 4, 2.8 or 2. (Gringer was on a trip in HK and he visited a Nikon center there and some guy explained to him how it's supposed to work he didn't know what he was doing with the defocus ... Granger also repeated this (what the guy told him) on another of his video, I just couldn't find the video now, back then he called himself the Nikon guy).
Again, I never find anything direct from Nikon.
Or never mind.
From shooting with this lens for more than a year, all I could say is given some shooting conditions, it has the most offensively ghastly chromatic aberrations ever, period.
(the effect of the defocus is subtle so I don't bother to test it or use it myself .... I know it's ridiculous)
Subscribe to:
Posts (Atom)
-
LG just up the ante by introducing its own touch screen cellphone a week after Apple made the iPhone announcement. The PRADA phone is a col...
-
New York City is falling apart .... Buildings are collapsing , the financial market is in a tailspin and the dollar is not the dollar it us...
