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Technique for quickly framing subject at high mag.

 
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cube-tube



Joined: 10 Oct 2017
Posts: 30
Location: Durham, NC

PostPosted: Tue Nov 14, 2017 6:42 pm    Post subject: Technique for quickly framing subject at high mag. Reply with quote

I came up with a very useful technique for framing a subject that I thought I should share.

If you are using a DSLR, you can shine a laser pointer through the viewfinder. The laser will appear as a dot on the subject in the exact center of the frame. When the subject is in focus, the laser will be focused to a sharp dot on the subject. When out of focus, the dot grows in diameter.

It is a very quick and easy way to approximate framing and focus before making fine adjustments with live-view. It is much quicker and less cumbersome than guessing and checking by adjusting the subject and then checking live view, especially when there is a specific location on the subject that you want to photograph.

I encourage you to try it!
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Chris S.
Site Admin


Joined: 05 Apr 2009
Posts: 2850
Location: Ohio, USA

PostPosted: Tue Nov 14, 2017 8:54 pm    Post subject: Reply with quote

A sighting laser is a big convenience in my workflow as well. Very Happy

Demonstration and instructions can be found in this post: Laser aiming and focus in photomacrography.
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cube-tube



Joined: 10 Oct 2017
Posts: 30
Location: Durham, NC

PostPosted: Wed Nov 15, 2017 12:14 pm    Post subject: Reply with quote

That is so cool!
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JW



Joined: 23 Feb 2011
Posts: 140
Location: New Haven, CT, USA

PostPosted: Wed Nov 15, 2017 3:16 pm    Post subject: Reply with quote

I've been doing this for years, but with a pin-point LED designed to illuminate gems and cut stones in display cases - works like a charm. But for me, I need to turn down the room lights to see the spot.
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