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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

B4 HD 2/3 lens test

OK, in broadcast they use the same over all diameter in 4:3 and 16:9 so
your lens covers both.
The quality of broadcast lenses has been good for S16 for let say the last
10 years. Before that it would be prudent to have the lens tested for the
required resolution and contrast. Of course this is a general statement as
each individual lens may have suffered some degradation due to
environmental exposure or mechanical stress. That being said we have
probably converted more than one hundred lenses over the years and many
clients are still using them with perfectly good results.
One important consideration about this converter is that I do not have a
source for cable to power the lens from the film camera. The lens has to be
used in a strictly manual mode.

Best regards,

Guy Genin
ZGC Inc.
264 Morris Ave
Mountain Lakes NJ 07046
 
koffi said:
The quality of broadcast lenses has been good for S16 for let say the last
10 years.
Best regards,

Guy Genin
ZGC Inc.
264 Morris Ave
Mountain Lakes NJ 07046
Click to expand...

Hi Guy,

Interesting point of view, personally I think the quality of all S16 zooms available today are rather poor relative to modern 35mm Zooms.

Stephen
 
koffi said:
If it's good for S16,it's good for 2K....
Click to expand...

Hi,

It's just the definition & use of the word 'good' we don't agree on. IMO Get away with, would be better.

The best 35mm Zooms are razor sharp & inter-cut perfectly with the latest primes.

If you were saying a 'good' amount of breathing, rather than good breathing characteristics I could agree with you.

Stephen generally likes any lens made by Cooke Williams
 
Your solution for shooting 2K: Cooke for 35 ?
A 15X8 SD zoom (8-120mm) is a more realistic solution;some tests can help to open\close eyes.
 
koffi said:
Your solution for shooting 2K: Cooke for 35 ?
A 15X8 SD zoom (8-120mm) is a more realistic solution;some tests can help to open\close eyes.
Click to expand...

Hi,

I have no solution for Shooting 2K with a Zoom to inter-cut with 4k shot with a Cooke S4 / Zeiss Ultra Prime. That is my whole point, my eyes are open & I regularly perform tests. As Laura from Cooke will confirm I am one of the few users of the Cooke 65sf attachment, my eyes are working.

Supply me with a 15 x 8 SD zoom in a PL mount & I will give you my opinion.

My best

Stephen
 
Koffi re 15x8

Koffi re 15x8

koffi said:
Your solution for shooting 2K: Cooke for 35 ?
A 15X8 SD zoom (8-120mm) is a more realistic solution;some tests can help to open\close eyes.
Click to expand...

Koffi:

I have 3 Canon J15ax8 lenses, which were pretty high quality SD from late 90s early 2000s and was quite popular. I would offer one up for experimentation if it is needed.

These lenses were probably close to 15K when new, now go for about $2K on the used market. The 8mm is nice as it is a little wider than than most of the SD zooms that typically started at 9mm.
 
I would be very interested in feedback of how the 2K images look with a 2/3" HD zoom on the B4 mount.
 
Stephen Williams said:
Hi,

I have no solution for Shooting 2K with a Zoom to inter-cut with 4k shot with a Cooke S4 / Zeiss Ultra Prime.

Stephen
Click to expand...

Hi Guy,

Been thinking a bit more about this, The Carl Zeiss Digi Zoom 6-24mm & 17-112mm are possibly going to be the best zooms out there for a windowed sensor, I did not say the cheapest.

Stephen
 
Converting B4 lens?

Converting B4 lens?

koffi said:
And a 15X8 SD Canon or Fujinon zoom is certainly the cheapest solution today but i can't try it until spring....
Click to expand...

I thought you were talking about converting the lens to a pl mount - i.e. that you do these conversions?

Basically I was offering to donate one to the cause to be converted and tested. I have been working with Gibby and number 8 for the underwater housing and I am sure he would test the converted lens on his camera whenever it was done.
 
I have the HD AIF SSDE
angenieux 7.8-208 F2.2
angenieux 5.3-53 F2
and we shot many many fullfeatures, docs and commercials with them. extremly good in 1920*1080, but also pretty expensive.

I am somewhat sceptical regarding this whole B4/PL prisms adapter thing, simply as i have no experience with those devices yet. Anyone tried them?
 
Abakus 132 Converter Product Code 120

This is for the direct optical conversion of 2/3" video lenses into super-16 format. The stainless steel B4 mount at the front of the unit fits onto the rear of B4 mount video lenses. The rear of the unit interfaces with super-16 cameras using an Arri PL mount. Between the mounts is a system of high quality optics, so there is no loss of quality. The unit maximises the use of video lenses for cine super-16.

PRICE:1350£ from abakus-scientific.com
 
B4 Lens tests

B4 Lens tests

Arthur Levy said:
I would be very interested in feedback of how the 2K images look with a 2/3" HD zoom on the B4 mount.
Click to expand...

Gibby and I should have some valuable feedback on this question next week since it is a possible major player in our upcoming Nat History television series work. We are planning on working with Canon and Fuji at Jackson Hole to shoot 2K with RED #8 in Yosemite at various 2K frame rates with the latest and greatest B4 HD lenses.

Apple is there with all the hardware and software to "bake" the footage. Now if only "Old Faithful" lives up to her name.
 
Hi guys,
There is a mistake;i am not a reseller but a future red user looking for an affordable,simple,lightweight configuration for shooting 2K hand held.Thanks for the offer Aqua ,I hope someone will test this adapter with HD and SD lenses.The urgency is to wait....
 
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