07.04.2020

Nikon Z7 Auto Fine Tune

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May 16, 2016  A guide explaining how to calibrate your lenses on the Nikon D500. Easy to follow instructions. To use the D500’s automatic AF Fine Tune feature. Jul 14, 2012  Nikon D810 Nikon Z7 Nikon D500 Nikon D850 Nikon AF Micro-Nikkor 60mm f/2.8D +26 more. So DEFAULT, which is my question, changes the AF point from the AF Fine Tune Off position for all lenses which I did NOT set a SAVED VALUE, but does not affect those that do have a saved value, is that right? D800 AF Fine Tune - what is 'Default'? D (Natural light auto) may not produce the desired results under artificial light. Choose 4 (Auto) or an option that matches the light source. Studio Flash Lighting. 4 (Auto) may not produce the desired results with large studio flash units. Use preset white balance or set white balance to 5 (Flash) and use fine-tuning to adjust white balance.

Input/output with files C provides the following classes to perform output and input of characters to/from files: ofstream: Stream class to write on files; ifstream: Stream class to read from files; fstream: Stream class to both read and write from/to files. These classes are derived directly or indirectly from the classes istream and ostream. Intro to File Input/Output in C. One way to get input into a program or to display output from a program is to use standard input and standard output, respectively. All that means is that to read in data, we use cin (or a few other functions) and to write out data, we use cout. Input/Output with files C provides the following classes to perform output and input of characters to/from files: ofstream: Stream class to write on files; ifstream: Stream class to read from files; fstream: Stream class to both read and write from/to files. These classes are derived directly or indirectly from the classes istream, and ostream. As has been discussed in many other threads here, 'cin ' doesn't remove the end-of-line from the stream after you read in the zero or one. So I'm thinking the getline at line 21 gets the now-empty line and writes it to the file, rather than waiting for a new line of input. You are attempting to redirect the contents of a file to program.exe using file.txt. This is not a command line argument. It simply redirects the contents of the file to the standard input of your program. To get those contents you will need to extract from std::cin. File input output in dev c++.

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this is me
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p.1 #1 · p.1 #1 · Z7 AF fine tune

Why is this feature even on the camera?
Apr 10, 2019 at 04:12 PM
Gary Irwin
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p.1 #2 · p.1 #2 · Z7 AF fine tune

At first glance it probably isn't really needed, but it would allow you force a correction if desired. For example if you have a decentered lens where and the corner is soft, you could force a correction that represents a best average focus for the lens. Another example might be when using a super-fast f1.2/1.4 lens with paper-thin DOF and you don't quite like where the camera is focusing, you could dial-in a small offset. I'm sure there are other uses too.
Apr 10, 2019 at 04:44 PM
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p.1 #3 · p.1 #3 · Z7 AF fine tune

I'm not sure if your lens is soft in the corners, changing the focus plane will help..
Focus on the sensor should be the most accurate as is.

Apr 10, 2019 at 05:00 PM
Gary Irwin
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p.1 #4 · p.1 #4 · Z7 AF fine tune

this is me wrote:
I'm not sure if your lens is soft in the corners, changing the focus plane will help..
Focus on the sensor should be the most accurate as is.

Well, adjusting the focal point might provide a better 'average focus' depending on the circumstances, but obviously the best option in this scenario is to get the lens fixed.

Apr 10, 2019 at 05:13 PM

Nikon Z7 Review 2019

Jay968
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p.1 #5 · p.1 #5 · Z7 AF fine tune

I was once told by a Nikon tech rep that if you have to use AF fine tune, there is something wrong and the camera and/or lens really should be checked and adjusted if need be by Nikon. I then asked why the feature was included in cameras and his response was that it was there as a stopgap measure and more so just to appease those who wanted it. I can't speak as to whether or not he was being serious with me, but what he said made an awful lot of sense.
The only camera that I ever owned that seemed to benefit from it was the D800 which in my opinion had a about the worst focusing of any camera I ever owned. I drove myself crazy with the AF fine tune on that camera due to the fact that when I did adjust it, I would then just find out sooner or later that I made things worse in other areas such as different light sources and zoom length. I finally gave up and got rid of those cameras. I have since owned a D810, D750, several non Nikons and now a Z7. I have never once seen any need whatsoever to adjust AF fine tune

Apr 10, 2019 at 05:57 PM
Steve Spencer
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p.1 #6 · p.1 #6 · Z7 AF fine tune

I will venture a guess and say that it might be nice at times to use only Phase detect AF with F mount lenses and without a touch up with Contrast detect AF, then fine tuning might help AF with such F mount lenses.
Apr 10, 2019 at 06:24 PM
chambeshi
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p.1 #7 · p.1 #7 · Z7 AF fine tune

Jay968 wrote:
I was once told by a Nikon tech rep that if you have to use AF fine tune, there is something wrong and the camera and/or lens really should be checked and adjusted if need be by Nikon. I then asked why the feature was included in cameras and his response was that it was there as a stopgap measure and more so just to appease those who wanted it. I can't speak as to whether or not he was being serious with me, but what he said made an awful lot of sense.
The only camera that I ever owned
..Show more
On a DSLR AF fine tune is usually essential when coupling any of the 3 Teleconverters approved to work a telephoto (ie on the list). Unless Nikon twinned the dedicated TC to the lens prime: as in the 800 FL, or built it in bespoke - 180-400 f4E TC
I also found my 58 f1.4G benefitted from fine tuning on my D850.
The other scenario is if a camera/lens takes a heavy bang on a trip AF would then be a possible stop gap to salvage something workable out of an accident

Apr 10, 2019 at 07:06 PM
MSantiago
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p.1 #8 · p.1 #8 · Z7 AF fine tune

Jay968 wrote:
The only camera that I ever owned that seemed to benefit from it was the D800 which in my opinion had a about the worst focusing of any camera I ever owned. I drove myself crazy with the AF fine tune on that camera due to the fact that when I did adjust it, I would then just find out sooner or later that I made things worse in other areas such as different light sources and zoom length. I finally gave up and got rid of those cameras. I have since owned a D810, D750, several non Nikons and
..Show more
I can't stress enough how terrible my D800 is. My camera suffers from the infamous left focus issue where no level of fine tuning would ever put the left and right AF points on the same plane as the sensor. I sent the camera to Nikon for repair and the only net effect seemed to be that they recalibrated the camera so that the focusing is accurate at medium distances. Focusing at close distances actually seems to be worse than before the repair.
I reluctantly decided to keep my D800 as a high resolution landscape camera where the focus issue would be minimized. In retrospect I should have gotten rid of this thing a long time ago before their prices rightfully plummeted.

Apr 10, 2019 at 07:09 PM
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p.1 #9 · p.1 #9 · Z7 AF fine tune

I guess my question is why AF tuning is even feature on a mirrorless when the focus is done right on the sensor. Regardless if it's Z mount lens, F mount, B, E whatever, the camera will activate the AF motor on the lens until the sensor acquire the focus.
DSLR is where AF fine tuning is often needed.

Apr 10, 2019 at 07:45 PM
Ripolini
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p.1 #10 · p.1 #10 · Z7 AF fine tune

this is me wrote:
Why is this feature even on the camera?

https://blog.reikanfocal.com/2018/10/the-new-nikon-z7-investigating-with-reikan-focal/

Apr 10, 2019 at 08:27 PM
Steve Spencer
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p.1 #11 · p.1 #11 · Z7 AF fine tune

this is me wrote:
I guess my question is why AF tuning is even feature on a mirrorless when the focus is done right on the sensor. Regardless if it's Z mount lens, F mount, B, E whatever, the camera will activate the AF motor on the lens until the sensor acquire the focus.
DSLR is where AF fine tuning is often needed.

If you are just using the Phase detect, the camera based on the sensor can tell the lens what distance to focus to, but if the lens systematically focusses shorter or longer than this distance it won't be corrected with only phase detect, so AF fine tuning can be useful. Z lenses are designed to finishing focussing by using contrast detect, which will use that phase detect information but fine tune it so that contrast is high (i.e., it can detect best focus and focus finely without adjustment). In this way F mount lenses may need an AF fine tuning adjustment, whereas Z lenses should not.

Apr 10, 2019 at 08:29 PM

Nikon Z7 Auto Fine Tunes

Nikon Z7 Auto Fine Tune
Jay968
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p.1 #12 · p.1 #12 · Z7 AF fine tune

MSantiago wrote:
I can't stress enough how terrible my D800 is. My camera suffers from the infamous left focus issue where no level of fine tuning would ever put the left and right AF points on the same plane as the sensor. I sent the camera to Nikon for repair and the only net effect seemed to be that they recalibrated the camera so that the focusing is accurate at medium distances. Focusing at close distances actually seems to be worse than before the repair.
I reluctantly decided to keep my D800 as a high resolution landscape camera where the focus issue would
..Show more
The D800 was honestly the only camera that I ever owned that I considered throwing into a dumpster. I ended up just trading it in to a camera store for something else.

Apr 10, 2019 at 11:12 PM

Nikon Z7 Reviews

Jay968
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p.1 #13 · p.1 #13 · Z7 AF fine tune

MSantiago wrote:
I can't stress enough how terrible my D800 is. My camera suffers from the infamous left focus issue where no level of fine tuning would ever put the left and right AF points on the same plane as the sensor. I sent the camera to Nikon for repair and the only net effect seemed to be that they recalibrated the camera so that the focusing is accurate at medium distances. Focusing at close distances actually seems to be worse than before the repair.
I reluctantly decided to keep my D800 as a high resolution landscape camera where the focus issue would
..Show more
The D800 was honestly the only camera that I ever owned that I considered throwing into a dumpster. I ended up just trading it in to a camera store for something else.

Apr 10, 2019 at 11:12 PM
pwschladen
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p.1 #14 · p.1 #14 · Z7 AF fine tune

Ripolini wrote:
https://blog.reikanfocal.com/2018/10/the-new-nikon-z7-investigating-with-reikan-focal/

The need for AF fine tune on mirrorless is clearly much less than on a DSLR, however this article (and others out there) explains why it is not completely redundant. It would appear that in most cases AF fine tune won’t be needed on a Z body, and when it is it will likely be for subtle adjustments. There is no need to touch it if you don’t need it but it is available if you do - so what is the complaint?

Apr 14, 2019 at 01:28 PM


Nikon Z7 Auto Fine Tuner