Blackmagic Forum

Simple enough.

If you could only choose one lens to shoot low light on the MFT, which one would it be?

Sigma 18-35mm F1.8 for Nikon mount (not available 'till October?) with Nikon G to MFT Speed Booster (technically two lenses I guess).

Jules

Probably a zeiss cp.2 t1.6

17.5mm Voigtlander f0.95 or Nikkor AIs 50mm f1.2 w/ speedbooster

I would choose SLRmagic Noktor 25mm T0.95. Sharp wide open.

How about buying lights for the same amount of money, and never shoot low-light again?

Jason Bourke-Velji wrote:17.5mm Voigtlander f0.95 or Nikkor AIs 50mm f1.2 w/ speedbooster

I think the Metabones Speed Booster requires a minimum f/1.4 lens which would take you to f/1.0. Starting with f/1.2 won't function properly.

Rick Lang
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rick.lang wrote:

Jason Bourke-Velji wrote:17.5mm Voigtlander f0.95 or Nikkor AIs 50mm f1.2 w/ speedbooster

I think the Metabones Speed Booster requires a minimum f/1.4 lens which would take you to f/1.0. Starting with f/1.2 won't function properly.

Rick Lang
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Hi Rick:
The Metabones Speed Booster is fully compatible with f/1.2 lenses. However, "f/1.2" is actually f/(cuberoot(2)) = f/1.2599 ~f/1.26. So what you get is f/(1.26 x 0.71) = f/0.90 .

Brian

Nikolay Smirnov wrote:How about buying lights for the same amount of money, and never shoot low-light again?

Utterly brilliant...

Max Normandin wrote:

Nikolay Smirnov wrote:How about buying lights for the same amount of money, and never shoot low-light again?

Utterly brilliant...

And this is what I did. Instead of buying a new lens, put the money into a portable light.

Jules

Nikolay Smirnov wrote:How about buying lights for the same amount of money, and never shoot low-light again?

Won't work for many types of live performance.

brianc1959 wrote:

rick.lang wrote:

Jason Bourke-Velji wrote:17.5mm Voigtlander f0.95 or Nikkor AIs 50mm f1.2 w/ speedbooster

I think the Metabones Speed Booster requires a minimum f/1.4 lens which would take you to f/1.0. Starting with f/1.2 won't function properly.

Rick Lang
Sent from my iPad using Tapatalk HD

Hi Rick:
The Metabones Speed Booster is fully compatible with f/1.2 lenses. However, "f/1.2" is actually f/(cuberoot(2)) = f/1.2599 ~f/1.26. So what you get is f/(1.26 x 0.71) = f/0.90 .

Brian

Thanks, Brian. You are correct. I think when the white paper came out ages ago, they mentioned the f/1.4 limit, but obviously with the actual product released, it does work with faster lenses. From Metabones website:

"Petersburg, VA, USA, January 14, 2013 - Metabones[REGISTERED SIGN] and Caldwell Photographic jointly announce a revolutionary accessory called Speed Booster[TRADE MARK SIGN], which mounts between a mirrorless camera and a SLR lens. It increases maximum aperture by 1 stop (hence its name), increases MTF and has a focal length multiplier of 0.71x. For example, the Canon EF 85mm f/1.2L II lens becomes a 59mm f/0.9 lens on a Sony NEX camera, with increased sharpness."

Rick Lang
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