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Advice on PL mount extenders

darren@...
 

Hi all,

Am new to using PL mount extenders and was wondering if anybody has any advice on using them. Will be using them on the new Atlas Orion Anamorphics. Main question i guess would be, can I use extenders like the Century Optics 1.4x extenders with anamorphics? Second question would be, is it worth the extra dough for the Duclos extenders over something like the Century optics or TLS extenders? Thanks! 

Thanks!
Darren Tan, DP
Singapore

Richard Bradbury
 

Theoretically you can use any extender on any lens. In reality though it depends on the design of the extender, particularly whether the front optic of the extender collides with the rear optic of the lens. Take extreme care when testing if you don’t know about compatibility.

I run an optics workshop where we project loads of lenses, including through extenders. They all introduce a certain amount of spherical aberration, some much more than others. We tend to use them on longer focal lengths where soft backgrounds hide optical deficiencies. As always test before using.

Richard Bradbury
Focus Puller
London


On 22 Aug 2018, at 09:55, darren@... wrote:

can I use extenders like the Century Optics 1.4x extenders with anamorphics? Second question would be, is it worth the extra dough for the Duclos extenders

Michael Sippel
 

The Duclos extenders have a built-in backfocus adjustment, which is nice, and have some of the deepest inside clearance of any extender I’ve tested (meaning they’re more likely to be compatible with lenses with deep protrusion of the rear element).  Optical performance is also quite good – in my opinion better than a Century - though I’ve never seen the TLS Optics extenders for comparison.

 

Mike Sippel

Senior Field Technician

Arri Rental, Atlanta, USA

All opinions my own &c.

No relationship to any companies discussed

Matthew Duclos
 

I won't go into too much detail since I'm not here to advertise... But Michael nailed the most relevant points. 
I'm extremely proud of the optical and mechanical design of our 1.4x, 2x, and 1.7x. Happy to provide samples to anyone interested. 

--
- Matthew Duclos
Lens Tech/Geek

Paolo Gobbi
 

Are you guys sure about they works with anamorphic 2x lenses?

Paolo Gobbi IT


Il giorno 22 ago 2018, alle ore 16:41, Matthew Duclos <Matthew@...> ha scritto:

I won't go into too much detail since I'm not here to advertise... But Michael nailed the most relevant points. 
I'm extremely proud of the optical and mechanical design of our 1.4x, 2x, and 1.7x. Happy to provide samples to anyone interested. 

--
- Matthew Duclos
Lens Tech/Geek

Matthew Duclos
 

Haven't tried with the Atlas Lenses specifically. 
I'll give Dan a call and see what we can arrange. 
Unless someone here has the lenses already and would be interested in testing. Like I said, I'm always happy to support lens tests!

--
- Matthew Duclos
Lens Tech/Geek

Thomas Fletcher
 

Although this is not testing the anamorphic capability of the Duclos 1.7 Expander, here is a link to a video Phil Holland produced for Fujinon testing the performance the Duclos 1.7x Expander with a Fujinon Premier 18-85 (T2.0) and Cabrio 19-90 (T2.9).  Phil used a Red Monstro 8K VV camera in Super 35 and VistaVision modes. Shots were framed to match approximate Field of View between formats.



Thomas Flecher
Director of Marketing Fujifilm/Fujinon 
Lake Forest, IL 


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