Ugly Hedgehog® - Photography Forum
Posts for: stangro
Jan 23, 2019 20:59:38   #
Here's mine, from Central New Jersey. Nikon D500 with 200-500mm lens, set at 500mm. Exposure: 1.0 sec, f5.6, ISO 400, manual focus. Heavily cropped.

Jan 6, 2019 15:49:29   #
I have an Epson Artisan 810 printer that remains on all the time.

Based on your question, I just metered it, and it consumes 9 watts of power in this standby mode. Based on this waste of energy, I will turn it off and only turn it on from now on when I use it, which is very seldom.

P.S. I have this kill-a-watt device that measures power usage (in watts).
Nov 30, 2018 22:03:05   #
The D850 is one fantastic camera.
Nov 30, 2018 20:00:44   #
Definitely the Godox system (or Flashpoint - it's the same flash/system).
Nov 30, 2018 17:28:56   #
Nikon ONLY allows calibration at one focal length on a zoom lens. Unless all your intermediate focal lengths are front or back focusing the same, the recommendations I have read are to leave it be (unless you shoot primarily at one focal length - like primarily at 200mm, for instance, then calibrate it for that zoom length.

I have the same lens as you, and I have resisted a calibration attempt on it, or my other zooms for that matter. I only calibrated my primes (the ones that needed it).
Oct 31, 2018 22:42:39   #
I've seen Steve Perry's utube on this and have his book that further discusses this issue (thanks Steve). I will follow his suggested methodology. I just don't understand why manually defocusing in one direction from the other produces different results.
Oct 31, 2018 22:21:32   #
Yup, I'm on single point autofocus, and selected the narrow focus area option.
Oct 31, 2018 22:18:35   #
Yes, I found a link that describes the process and button sequence to push to have the camera auto correct the auto focus. It doesn't work 100% - you have to check the results and perhaps manually adjust the calibration number.

The url I found on this is:
Oct 31, 2018 17:01:42   #
I'm trying to calibrate my prime lens on my Nikon D850. A couple of my primes have the following issue:

If I de-focus my lens by rotating my focus ring to the left and then autofocus I get an in focus reading of -1 to +4 on my target scale. If I then de-focus my lens by rotating my focus ring to the right, I then get an autofocus reading of -4 to +2.

This has happened with two of the four lens I have attempted to calibrate, so far (numbers of course change between lens).

Has anyone else had this problem? Am I doing something incorrectly?

My cam is on a tripod, I'm using AF-S, no vibration reduction, in aperture priority, with widest f stop an a well lite subject.

BTW - this does not happen in Liveview.

Apr 19, 2018 15:00:59   #
Upgraded to the D850 3 months ago - absolutely love it.

Apr 18, 2018 20:35:09   #
Just a note: the original Nikon 70-200mm f2.8 G AF-S FX VR1 was introduced in 2003. Serial numbers 200001 thru 470705 (Feb '03 - Jul '09). So at most, this lens is 15 years old - not 25. - Forum
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