Posts

Showing posts with the label Speed Booster

Use Medium Format Lenses with Sony A7 Cameras

Image
Sony A7 ii with a Mamiya 645 80mm f/1.9 lens via Kipon Baveyes Focal Reducer.


Here is a review of the Kipon Baveyes medium format lens focal reducer adapter for Sony A7 cameras.  This adapter has a lens element that concentrates the medium format image circle down to the size of a 24x36mm sensor of the Sony A7 cameras with a 0.7x factor.  The 80mm lens above has an equivalent focal length of 56mm.  The concentrated light also gives us one stop of extra light.  The f/1.9 is an equivalent f/1.36, a very fast medium format lens. This a manual focus lens adapter.


Kipon Baveyes Medium Format Lens Focal Reducer Review by @mattiasburling

Read the complete review at gunpowdervideo.com.

Thanks @mattiasburling !

Check out Kipon for all available medium format focal lens reducer adapters.


Let's go a step further by adding the TECHART LM-EA7 Autofocus Lens Adapter with the Kipon Baveyes we can have a medium format lens autofocus system.

from Mathieu Gasquet







Low Light with the Speed Booster and Contax 50mm Planar

Image
Songstress.

Here are some photos from a wedding we invited. All we were equipped with was our trusty Sony NEX-7, a Metabones Speed Booster, and the Contax 50mm Planar - a gem. The Speed booster gave us an effective 55mm lens at f/1.2, necessary for this low light event.


Double trouble.

The NEX was set to shoot jpeg only in black and white with contrast and sharpness at negative two. This made the post-processing much easier than usual with cropping as the only requirement.


Tequila ice bar.


Holding court.

Red Hook Crit Brooklyn No. 9 with the NEX-7.

Image
We took the subway down to Red Hook - Brooklyn Cruise Terminal, which is definitely a place for bikes since the nearest station is a mile a way. We had a nice compact setup with the Sony NEX-7 and the Contax 50mm Planar via the Metabones Speed Booster. The Speed Booster effectively gave us an f/1.0 lens with a 55mm focal length.



We have some static shots but it takes away from the sensation of speed that the women were achieving on the track. Above is the lead pack during the race. We only had 2 minutes between each lap until we saw them again.









It's always fun to watch the Red Hook Crit even though it was cooler than usual. We did pretty well with a manual focus lens during a sporting event. I wonder what the Sony A6300 with its advanced autofocus tracking can manage.

Canon 6D vs NEX-7 with Speedbooster

Image
Canon 6D vs Sony NEX-7 with Metabones Speedbooster
Tarocoo wanted to see what the NEX-7 with the Canon EF to E-mount Speedbooster can do against his full frame Canon 6D. He had access to a multitude of manual focus lenses which can be used on both E-mount and EF mount (EOS). The Speedbooster's final EFOV on the NEX APS-C sensor is about 1.1x the focal lenght - so the EFOV is close to the Canon 6D with the full frame sensor. The lenses used are:

Sigma 24mm f/2.8Sigma 28mm f/2.8Olympus 35mm f/2.0Sigma 50mm f/1.4
The images will show the whole scene at wide open to an aperture of f/11. It will be followed by center and corner crops at same aperture range. Here we go...

Canon 6D vs NEX-7 Speedbooster Sigma 24mm f/2.8










Canon 6D vs NEX-7 Speedbooster Sigma 28mm f/2.8









Canon 6D vs NEX-7 Speedbooster Olympus 35mm f/2.0












Canon 6D vs NEX-7 Speedbooster Pentax 50mm f/1.4

NEX-7 with Contax 28mm Distagon via Speedbooster

Image
Here are some sample shots from the NEX-7 and the Contax Zeiss 28mm f/2.8 Distagon using the Metabones Speedbooster. It was great shooting the 28mm at close to its natural focal length. The lens was always set wide open at f/2.8 and the NEX-7 was at ISO 100. We are very pleased with the Speed Booster.