Have you focus fine tuned camera body/lenses?

5 years 5 days ago #639872 by Chris Briggs
I seem to recall one of the photo boards that I belong to chatting about this a few months ago.  I was flying and just scanned the thread without responding.  But just started to think about this and the need for doing this.  

I mean how can you test to see if your gear needs such focus tuning?  

If it turns out that there is something off, is this an app, or ??? that is used for doing the tune?


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5 years 5 days ago #639876 by Nikon Shooter
I use 16 lenses and 4 bodies. All lenses have been fine tuned
to all 4 bodies… THIS IS A MUST in my book.

I see you got the D800 which is very capable to fine tune any
lens you want to mount to and work with… no app necessary.

Light is free… capturing it is not!
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5 years 5 days ago - 5 years 5 days ago #639898 by Troponin

Nikon Shooter wrote: I use 16 lenses and 4 bodies. All lenses have been fine tuned
to all 4 bodies… THIS IS A MUST in my book.

I see you got the D800 which is very capable to fine tune any
lens you want to mount to and work with… no app necessary.


I just discovered how important this is. It's on my list of projects to work on while it's raining. 

Is there a good chart to use for doing this? 


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5 years 5 days ago #639900 by Nikon Shooter
I do have a tool for my 16x4= 64 fine tunes but you can use
a simple ruler at 45°.

Light is free… capturing it is not!
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5 years 5 days ago #639910 by Troponin

Nikon Shooter wrote: I do have a tool for my 16x4= 64 fine tunes but you can use
a simple ruler at 45°.


Is there a significant difference between macro and non-macro in terms of how accurate it needs to be? I use my AF-C for butterflies and I use a pretty shallow DoF. I am wondering if investing in a tool would be worth it for the accuracy. Is this reasonable, or just stick to the ruler? 


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5 years 5 days ago - 5 years 5 days ago #639912 by Nikon Shooter

Troponin wrote: Is there a significant difference between macro and non-macro in terms of how accurate it needs to be?

For me, it MUST be critically focused what ever the tools.

Troponin wrote: I use my AF-C for butterflies and I use a pretty shallow DoF. I am wondering if investing in a tool would be worth it for the accuracy. Is this reasonable, or just stick to the ruler? 

DoF and critical sharpness are two different things. You
don't need, for just a few lenses, to buy anything.


I use the Datacolor Spyder LENSCAL

Light is free… capturing it is not!
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The following user(s) said Thank You: Troponin
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5 years 5 days ago #639914 by Troponin

Nikon Shooter wrote:

Troponin wrote: Is there a significant difference between macro and non-macro in terms of how accurate it needs to be?

For me, it MUST be critically focused what ever the tools.

Troponin wrote: I use my AF-C for butterflies and I use a pretty shallow DoF. I am wondering if investing in a tool would be worth it for the accuracy. Is this reasonable, or just stick to the ruler? 

DoF and critical sharpness are two different things. You
don't need, for just a few lenses, to buy anything.


I use the Datacolor Spyder LENSCAL


I only accept perfection! :rofl:

Thanks again. More food for thought. 


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5 years 5 days ago #639915 by Ozzie_Traveller
G'day all

As NS says - try a ruler
Better still - blu-tak a sheet of newspaper to one of your walls, draw a texta [felt-pen] line vertically down the sheet then set tripod & camera at 45deg and varying distances away. Shoot the texta line using different zoom & F-stop settings and compare results

Ezy-pezy ~ image below shot at 420mm x 9~10ft from subject
Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/

Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/

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The following user(s) said Thank You: Troponin
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5 years 5 days ago #639916 by Nikon Shooter
A flat surface will tell if in focus or not but won'treveal by how much.

Light is free… capturing it is not!
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