Fine tuning your lenses. Also anyone use FoCal and FoCal Pro?

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Capturingtheunseen.com

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I use the highly scientific method of taking a picture of an object in grass and seeing where the area of focus is. lol Here is an image of a squirrel taken from approximately 100 feet away, cropped a bit, using my wife's Nikon D5500 and Sigma 15-600. Tell me what you think.
KAM_5293-Edit.jpg
 
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Capturingtheunseen.com

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I also check the focus point plug-in in Lightroom to make sure I was on target. This time I actually missed it a bit which affected depth of field a little.
squirrel focus point.JPG
 

Abinoone

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Steve's book, Secrets of the Nikon AF System" goes into considerable depth on this topic, comparing a couple of different products. The book is worth its weight in gold anyway.
 

Ron G

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Sorry Nick, the new FoCal does not support full auto for Nikon a la Canon, you still have to manually input the adjustments. I have been using FoCal for several years and find it easy to use and very accurate. It's well worth the money.

As a registered user I was informed of the new release and downloadd it for free. It is a signifcant improvement.
Does it work with other lenses? That is a Nikon body with a Sigma lens?
 

RichF

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This discussion is making me think going ML is the way to go. No fine tuning issues
 

Ron G

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I found the answer - if a lens works on a Nikon or Canon body, it will work with 3rd party lens.
 

Ron G

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I just purchased FoCal Pro. I'll calibrate all of my lenses and post the results.
 

MartyD

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I just purchased FoCal Pro. I'll calibrate all of my lenses and post the results.
It is very important to have a sound testing environment when using FoCal to get consistent results. It calculates a "Focus Quality" of images it takes so if the lighting is changing, inconsistent, or flickering your results will not be consistent. I have not had luck using it outdoors because any change in lighting level could change the image. If you are testing indoors you will need space to test at the appropriate distance for long lenses.
 

RichF

Well-known member
Supporting Member
It is very important to have a sound testing environment when using FoCal to get consistent results. It calculates a "Focus Quality" of images it takes so if the lighting is changing, inconsistent, or flickering your results will not be consistent. I have not had luck using it outdoors because any change in lighting level could change the image. If you are testing indoors you will need space to test at the appropriate distance for long lenses.
I have had some "issues" with my 600 and 600 + 1.4. I tried to test outdoors with focal and found variable results. Tuning inside is challenge, we need a very long, well lit hall way.
 

Ron G

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I planned to calibrate my lenses today, but I don't have the special USB connector that Nikon uses. I organize my equipment carefully. I have no fewer than 43 USB data cables of all types. Not one of them fits my Z-6. I found a data cable online that is made for the Z-6 and ordered it. I'll let you know on Monday how things work out.
 

DRwyoming

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I planned to calibrate my lenses today, but I don't have the special USB connector that Nikon uses.
It's a standard USB C cable, nothing Nikon special about it. I use the same cable to plug into my USB C portable drives and my MacBook Pro Thunderbolt ports.

It's the top port on the Nikon Z6 or Z6 II. The middle one is HDMI and the bottom one is the unusual port that's used for the remote release.
 

Ron G

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I use the bottom port for my remote trigger. I didn't even try the top port since it was marked for Bluetooth. I'll try the bottom port. Thanks for the correction.
 
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