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User experience from using in-camera focus bracketing
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zzffnn



Joined: 22 May 2014
Posts: 1455
Location: Texas USA

PostPosted: Tue Nov 14, 2017 1:48 pm    Post subject: Reply with quote

JL wrote:
I can not answer your questions, but probably you can ask Mark Berkery at https://beingmark.com/macro-illustrated/ . My understanding is that he uses a M43 camera coupled with a 60 mm Olympus macro and Raynox lenses, as you can see in his blog, he does get spectacular results.


Thank you very much, JL.

Mark Berkery got amazing field macro images, using his M4/3 and superzoom bridge camera, diffused flash and Raynox DCR-150/250/150+250 stack.

His measured working distance of Raynox 150 is almost the same as my WD (about 8 inches).

I also learned how Mark uses a stick as one "tripod leg" and his own legs/knees as the other two, when he shoot field macro.

Member Johan's very helpful web site offers a calculator for Raynox lenses, whose results confirmed Mark's WD for Raynox 250 (at around 4.5 inches) http://extreme-macro.co.uk/raynox-adapter-techniques/

It also tells me that Raynox 250 offers about 1.55x magnification on my 150mm Oly zoom lens. Raynox 150 offers 1x and 150 stacked on 250 offers 2.4x. With that stacked 2.4x magnification, I can still get about 7.5 cm of WD and 7.2mm field of view, which is good enough for small ants.

I am convinced and will buy a Raynox DCR-250, even though my Schneider Componon S 50mm F/2.8 can provide similar magnification (but with less working distance, 6.5 cm vs 11.7 cm and without autofocus). Different horses for different courses, I guess (Schneider is likely better for studio macro and stacking).
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jojm



Joined: 08 Jul 2007
Posts: 27
Location: France

PostPosted: Tue Nov 14, 2017 2:56 pm    Post subject: Reply with quote

A quick test tonight

Olympus M.Zuiko 60mm Macro+DCR 150, manually focused for 1:1
FOV: 12.5 mm which means x 1.38 on the sensor
WD:48mm

Olympus M.ZUIKO 60mm Macro+DCR 250, manually focused for 1:1
FOV: 10.5 mm which means x1.65 on the sensor
WD: 41.5 mm
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Lou Jost



Joined: 04 Sep 2015
Posts: 1761
Location: Ecuador

PostPosted: Tue Nov 14, 2017 5:02 pm    Post subject: Reply with quote

I use the Raynox lenses all the time on my bridge camera in the field, as do many of my friends, and they are wonderful.
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Lou Jost
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zzffnn



Joined: 22 May 2014
Posts: 1455
Location: Texas USA

PostPosted: Tue Nov 14, 2017 5:22 pm    Post subject: Reply with quote

Thank you very much, Jean-Marc, for your test results.

And thank you Lou for your comment.

I am sure the Raynox lenses will work well for my educational purpose, mainly owing to their long working distance, compactness and low cost.
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Lou Jost



Joined: 04 Sep 2015
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Location: Ecuador

PostPosted: Tue Nov 14, 2017 5:44 pm    Post subject: Reply with quote

By the way my bridge camera, an FZ300, has a very long zoom lens, and this allows high magnifications with a Raynox.
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