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Robin R Probyn

Member Since 25 Jun 2008
Offline Last Active Today, 03:21 AM
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Posts I've Made

In Topic: ENG Lens possibility with an Alexa?

Today, 12:04 AM

Ive been in the same situation when I first got my f5.. I only had some prime s35 lenses.. shoots where a zoom was just going to be vital I used my ENG zoom.. with the  centre crop Abakus adaptor.. the s35mm ones were about $6K .. very heavy and ate light.. non starter for me anyway.. also dearly loved my very trusty Fujinon 4.5 HD zoom lens.. 

 

But my quickly I found it wasn't really cutting it shooting only centre crop and not getting the Shallow DoF "look" when I wanted it.. plus it was never going to pass muster for well paid shoots, turning up with an ENG zoom lens.. I found the 19-90 Cabrio not wide or long enough..  .. for a, at the time close to $40k lens... luckily the Canon CN7 came out as an answer to my prayers .. the draw back being it weights a ton !!.. 

 

Great for your f900.. but if you do actually go over to s35 sensor.. in my opinion .. for general freelance work.. and you want to stay with a servo zoom.. I think there is just no alternative but to get a s35m ENG style zoom..at least now there are more second hand ones around.. first few years ,buyers just didnt sell them at all.. 


In Topic: ENG Lens possibility with an Alexa?

Yesterday, 08:21 PM

Won't an Arri Alexa Mini, using center crop, be less than HD resolution?  Cropping is throwing away a lot of pixels.  I'd go with the full frame two stop loss adapter if I had a choice.

 

Yes after debayer it would be a little less than HD..but then anyway using a B4 zoom on a s35m sensor is never going to be the best optical move.. ,each to their own but personally I think if you want or have to use an B4 ENG zoom.. then using crop with the less than 1 stop and much smaller/lighter adaptor is the better of evils... but centre crop can look ok.. Detroit was shot mini centre crop but with s16 zooms.. admittedly for a "gritty" look .. but it can stand up to the big screen.. TV its pretty much not a problem.. 


In Topic: ENG Lens possibility with an Alexa?

Yesterday, 09:37 AM

Two thoughts on this.

 

For the full expansion to super-35, you lose two stops, but then again those lenses are often f/1.3 anyway. So what, you're stuck at a 2.8? The Fuji MKs, the 19-90, Zeiss 10-100 and the Canon CN7x17 are all slower than that. The result will certainly not have the sharpness of any of those things, but it's no slower.

 

Second, have you ever handled an Alexa? The Amira is (slightly) lighter and in my view is still a bit of a lump to run around with ENG-style. The Alexa is not something you can easily throw on your shoulder and go all day. People who work on upscale feature films will claim often that they can, but they have a rather different idea of "go all day" than the average documentarian. It pulls 85 watts, which greatly limits your independence from mains power and tends to require an assistant to fetch and carry batteries, which will generally go flat more than once an hour.

 

 

Yes I would say the Mini with centre crop adaptor would be the way to go..less than a stop I believe from memory.. agree the Amira is pretty heavy and quite power hungry for a doc camera..which it was sold as..   


In Topic: ENG Lens possibility with an Alexa?

Yesterday, 09:27 AM

Well shooting in the dark could come under lighting .. nes par..?


In Topic: ENG Lens possibility with an Alexa?

Yesterday, 02:37 AM

Don't think you can with Alexa..? since 2016 software the Amira/Mini 16-9 sensors.. have centre crop mode..like the f5/55 have always had.. this makes its easy to use B4 ⅔ and s16mm zooms..  you will need of adaptor B4 -PL there are a few around.they have a small bit of glass in them..so not heavy and only ⅔ stop light loss if memory serves .. I still have a dusty ABAKUS one in a draw.. otherwise there are  a few s35mm ENG zooms now.. the Fujinon Cabrio series and Canon CN7 at the top of the range.. down to the cheaper fly by wire Canon one.. and I think there is a 3rd party servo zoom for the very good value Fujinon MK zooms..

 

There are also a couple of much larger, heavy, expensive.. adaptors that chew more than 2.5 stops .. that you dont need centre crop..but its such a massive heavy thing..and you loose so much light .. I think centre crop is the much better way to go..

 

So maybe you could wangle a mini or Amira..?


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