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T-Rex for Macro fishtank work


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#1 Benjamin Pritchard

Benjamin Pritchard

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Posted 28 October 2014 - 03:33 AM

Hi All

I'm going to be shooting ECU macro shots of ink swirling around in a fishtank. I will be shooting in a studio with as much light as I need and want to be able to get below the tank as well as shooting from the side. I am thinking of using the T-Rex system and shooting on Zeiss Ultra Primes. I have assisted on the T-Rex many years ago so know that it is incredibly flexible and i think once mounted on a dolly this system will enable me to move around the fishtank with ease. My question is regarding the lenses. What is the magnification factor when using the T-Rex? How close will I be able to focus and which of Ultraprimes will best allow me to shoot ECU details of ink swirling within a 1' cubed tank?

regards

Ben


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#2 Dom Jaeger

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Posted 30 October 2014 - 02:22 AM

Hi Ben,

 

I don't think the T-Rex takes PL mount lenses like Ultra Primes (unless P&S have done something new I'm not aware of). It uses its own custom lenses (derived from Contax lenses mainly I think), or there are adapters available for still photography mounts like Canon EF and AF, Nikon, Leica M and R and Contax. 

 

With the T-Rex lenses you can get down to around 1:1 magnification, mostly that means the lens needs to be just about touching the subject. The custom macro doesn't focus that close, it approaches 1:1 at about 6 inches.

 

Be sure to test and decide whether you really need an advanced probe/periscope system for this sort of job. 


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