The new Nikon mirrorless system

[Akira]

not sure if I am missing something but I notice that most adapters focus past infinity

is there something that I dont know about!?

Is it a good idea to shim my adapters so they stop at infinity?

Rick, as you may have sensed, we are not talking about the adpters leaving some room for the inconsistency of the infinity stop of the attatched lenses.  It is about how to focus further than the usual F-mount adapters allows.

[richardHaw]

i think i got confused

time for caffeine and nicotine

[Akira]

i think i got confused

time for caffeine and nicotine

I need some sleep.　

[chambeshi]

Good to see Nikon has published pdfs of the Z7 manuals - finally on the Download Center

https://downloadcenter.nikonimglib.com/en/products/492/Z_7.html

also several new firmware updates - see here on NR
https://nikonrumors.com/2018/09/26/nikon-releases-several-firmware-and-software-updates-180-400mm-p1000-wt-7-sb-5000-and-more.aspx/#more-127634

[Eddie Draaisma]

A quick scan through the reference manual, I remain skeptical about the AF fine-tune option. If it means that  S-line lenses may have to be calibrated for proper AF in default AF modes, then IMHO something went wrong very wrong...

[gryphon1911]

A quick scan through the reference manual, I remain skeptical about the AF fine-tune option. If it means that  S-line lenses may have to be calibrated for proper AF in default AF modes, then IMHO something went wrong very wrong...

Just going off the other mirrorless cameras that use that feature, it should not be the case for the S-line lenses.  It usually id needed for legacy/adapted glass.  In the case of Olympus 4/3 glass adapted to micro four thirds, the legacy 4/3 lenses may need AF fine tune, so the feature is there.  It is needed because not all 4/3 lenses are optimized for contrast detect AF and only use the PDAF on sensor feature.

My guess is that the FTZ adapted lenses may need a little help from time to time with being calibrated.

[Ilkka Nissilä]

The adapter manufacturers cannot control the tolerances of the camera or lenses. So in order to make an adapter that can be attached to any camera or lens and is guaranteed to focus on infinity, it should probably be a bit on the short side.

[chambeshi]

Just going off the other mirrorless cameras that use that feature, it should not be the case for the S-line lenses.  It usually id needed for legacy/adapted glass.  In the case of Olympus 4/3 glass adapted to micro four thirds, the legacy 4/3 lenses may need AF fine tune, so the feature is there.  It is needed because not all 4/3 lenses are optimized for contrast detect AF and only use the PDAF on sensor feature.

My guess is that the FTZ adapted lenses may need a little help from time to time with being calibrated.

AF fine-tune in the Z7  can store settings for up to 30 lenses... pg 295. With all the TC combinations the memory fills up fast :-)

[chambeshi]

Another new function buried in the Z7 Focus-Stacking settings is the function "Create" that gives a B&W composite image with focus peaking to check focus across the stack after shooting. This should be useful. [pg 228 in Z7 Reference Manual]
This should be useful...

[Eddie Draaisma]

My guess is that the FTZ adapted lenses may need a little help from time to time with being calibrated.

Very plausible, something along these lines is mentioned in the adapter compatibility document.  Nikon could have been more clear about this in the manual, and picturing the S-line 24-70/4 in the AF fine-tune section is not building confidence.

[Ilkka Nissilä]

AF fine-tune in the Z7  can store settings for up to 30 lenses... pg 295. With all the TC combinations the memory fills up fast :-)

Fine tuning shouldn't be needed with on-sensor PDAF. But it may be that when a subject is approaching quickly, the AF may be lagging a bit, so by adjusting the fine tune towards front focus may help. There should not be any need to make lens-specific adjustments in the same way as with a DSLR since the PDAF sensors are in the same plane as the main image photosites. So the number of lenses possible to store seems excessive. Even DSLRs only have 12 to 20 slots (and with DSLR the fine tune is typically needed).

[gryphon1911]

I know in the past, Nikon has mentioned that the SWM motors get a little off and require some fine tune.  It is possible that the pulsing motors (AF-P) suffer the same, so the feature is there.   It will also depend on the AF algorithm. 

Olympus uses their PDAF sensor tech to know which direction to turn the AF, but confirms the final AF using C-AF.  If Nikon implements something similar, then S line lenses should not require any adjustments.   All theoretical and assumption on my part.

[Akira]

I know in the past, Nikon has mentioned that the SWM motors get a little off and require some fine tune. 

That was exactly what the repair person at Nikon service here in Tokyo explained to me.  After the fine adjustment of the motor, I didn't even need to activate the in-camera fine tuning function.

[richardHaw]

I think its the VR

i do remember something like that being explained to me.

[Akira]

I think its the VR

i do remember something like that being explained to me.

No, it's about the SWM for the AF.  I've had a couple of my AF-S primes calibrated in Ginza.