Filmer des documentaires en S-35 : une nouvelle tendance ?

Avec la toute nouvelle AMIRA, chez ARRI, c'est peut-être un tournant que nous voyons se dessiner dans la production cinématographique. Alors que le Super-16 est bel et bien enterré, c'est vers le D-Cinéma que les regards se tournent maintenant, et il semble bien que les constructeurs, désormais à l'écoute de leurs clients potentiels, se posent la question de l'ergonomie des caméras à grand capteur.
Et, dès lors, quoi de mieux que la vieille recette ENG de la caméra portée sur l'épaule, le viseur à hauteur de l’œil du cadreur ?  C'est un peu ce que l'on voit désormais avec cette caméra, chez ARRI, et last but not least, voici Sony qui annonce des adaptateurs B4 2/3'' pour ses caméras F5 et F55 (à vrai dire on se demande pourquoi ils n'ont pas prévu ça aussi pour la F3).
Voici un bref FAQ, que l'on doit à Peter Crithary, qui fait le point sur ces nouveautés :

First adapter : LA-FZB1

Second adapter, LA - FZB2

Enables the use of existing HD lenses for 4K production with PMW-F55

The LA-FZB2 lens mount adaptor increases the lens options for the PMW-F55 camcorder shooting 4K productions. The small and lightweight lens mount adaptor converts the lens mount format from B4 to FZ.

It enables the use existing HD lens including HD BOX lens for Sports shooting, while maintaining good operational weight balance.

Integrates motorised ND and CC filters - With the LA-FZB2, you are able to change ND and CC filters remotely. The system incorporates the same RCP/MSU operation system as current HDC Series cameras.

 

Q1：How is LA-FZB1 different from LA-FZB2?

1. LA-FZB2 has servo-controlled optical filter disk unit (FDU) including ND and CC (Color Correction filters) while the LA-FZB1 does not.

2. LA-FZB2 includes a pair of support rods (φ15x70mm), while the LA-FZB1 does not.

Q2：What is the weight?

FZB1 is approx. 670g (1lb8oz) body only, 760g (1lb11oz) with detachable support rod bracket.
FZB2 is approx. 840g (1lb14oz) body only, 960g (2lb2oz) with detachable support rod bracket and a pair of support rods.

Q3：What is the magnification ratio of LA-FZB1?

About 2.6x

Q4：How many F stop will be dropped?

About 2.6 stops.

Q5：What’s the maximum supported lens weight LA-FZB1?

Approx. 3 kg without support rods
Approx. 10kg with support rods

※  Recommended for using the supplied support rods for stable operation. When using a BOX lens, please use the lens support provided from the lens manufacturer.

Q6：What are the adapters made of?

Magnesium die-casting.



Q7：Does LA-FZB1 work with any B4 lenses in the market?

Yes, it works with any B4 lenses in the market.

Chromatic aberration compensation is available with the lenses supporting chromatic aberration compensation data communication. (F55/F5 firm ware Ver2.0 or later)

Check your lens regarding compatibility of a chromatic aberration compensation data.


Q8：When they will be available in the market?

Estimated in October, 2013.

Q9：What’s the difference between Sony’s adapters and others?

1 - Sony’s adapters are FZ mount while others are PL mount.

2 - The advantage of Sony’s adapters is they make good use of bright lenses than the other adapters on the market, in addition our adapters minimize the light falloff at the edges. (Because max. Input F Number of Sony’s is 1.4 while other products average F number is 1.7 to 1.8)

3 - Sony’s adapters have 12-pin lens interface.

Q10：What functions are available with 12-pin lens interface?

Available with PMW-F55/F5 Ver. 2.0 (ex Ver1.3)

• Rec start/stop control from zoom lens
• Control from RM-B remote (Iris/Zoom/Focus)
• Lens Information display
• Control from CBK-DCB01 (Zoom)
• Chromatic aberration compensation

Available with PMW-F55/F5 Ver. 3.0 (December/2013)

• Auto iris
• RET (Rec review) button from lens

 Q11：Is it made by Sony?

Yes, it is

Q12：Isn’t there any optical performance drop?

No, there isn’t.

Q13：Does the angle of view change?

Almost the same angle of view as that using with a 2/3 camera.

Q14：Does the focal length change?

It will be magnified about 2.6x.