Luminous Landscape Forum

Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: sc_john on October 05, 2017, 12:58:15 pm

Title: D850: Focus tuning UWA lens
Post by: sc_john on October 05, 2017, 12:58:15 pm

Has anyone had success in focus tuning an 18mm/2.8 lens (Zeiss Milvus in this case) on a D850... or D5 or D500 for that matter. I have tried two samples, and could not get either to auto fine tune. I have successfully focus tuned a Nikon 20/1.8 G lens; so I am lost on why process doesn't work on Milvus 18/2.8. I also tried dot-tune method and that wasn't successful, either. TIA for any suggestions or comments.

John

Title: Re: D850: Focus tuning UWA lens
Post by: kers on October 05, 2017, 05:19:00 pm

Because it is a manual focus lens?

Title: Re: D850: Focus tuning UWA lens
Post by: Paul2660 on October 05, 2017, 05:34:24 pm

I would agree, AF fine tuning will only work on a AF lens. You can't really use the system on a MF lens.  Instead Liveview is your only solution, then marking the lens. 

Paul Caldwell

Title: Re: D850: Focus tuning UWA lens
Post by: sc_john on October 05, 2017, 05:57:02 pm

kers and Paul 2660,

Thanks for your responses. It appears you are right... fine tuning for AF lenses only. As they say, RTFMS.

I'll look into "Dot Tune" method, since that supposedly works with MF lenses.

John

Title: Re: D850: Focus tuning UWA lens
Post by: kers on October 06, 2017, 07:36:55 am

As I understand the dot has become more critical ( was not very useful) and you have focus peaking in liveview...
I do not have a d850, but you can try out what works best for you.

(I still do not understand why Nikon does not make a dedicated loop to use with liveview... )