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There is a huge mistake made by many people about “aperture”.

In the video they say they will get the feel of a 85/1 with this adapter and a 85/1.4 on a Nex, and that is totally wrong.
You will get the image a 85/1.4 gives you on a full frame. With a f/1 setting for speed, that’s true, but definitely not a 85/1 image look depth-of-field wise.

Just like putting a 50/1.4 on a 1.5 crop sensor won’t make the photographs look like the ones taken by a full frame 75/1.4, but a 75/2 instead, regarding image looks and depth of field. And a 1.4 lense regarding speed, that’s true.

The aperture that gives you the “quantity of light arriving on sensor per surface units” (and so the speed/iso/aperture combination you need in a specific situation) is NOT the same as the aperture that gives you the depth of field you get on a specific setup, if you change sensor.

A x2 teleconverter does change both apertures, because you keep the same sensor. But here, you try to compare things with different sensors, and that’s why the two apertures aren’t linked any more.

Yes, but for use on photo cameras, the technology was apparently patented by Kodak, who never manufactured the product, nor would allow anyone else to do so.

I’ve argued for Sony to start making them for years, because it would turn their APS-C cameras into full frame cameras, increase lens speed and potentially lens resolution.

Front mounted converters reduce image quality, rear mounted converters may actually improve it.

The speed booster can’t get faster than 0.9 because of the size of the entrance pupil. So 1.2 lenses will be as fast as a 1 or a 0.95

I like the video and love Adams infectious joy of his toys. Good on him. Like the metabones explanation

FF FOV is true. There is obviously a loss in Image Quality due to the sensor still being APS-C, so it is no more sensitive to light, but the second feature of making lenses 1 stop faster actually helps a bit on that too.

Focal reducers have been around astrophotography for a long time. The f/8 SCTs from Meade and Celetron have sold f/6.3 reducers since the 80s.

The m43 guys will mitigate their sensor-size issues, but they won’t get the near-FF behavior that NEX people get.

Because Adam Savage is a somewhat popular TV Show guy that has a rep for matching Science to Wild Expectations.

The metabone speed booster is a great addition to sony gear.
However this is not new and well known from the astrophotographers. This is known as “focal reducer”.

it’s 1.88 in video mode

he seems to be confusing flange distance with sensor crop. the crop doesn’t happen because of shorter flange distance, but because the sensor is smaller. also, what everybody seem to miss all the time: the speed booster boosts the amount of light only, dof will stay the same. the effect is more comparable to better iso performance than to wider aperture actually. the crop difference is impressive though. just imagine what this could mean to video shooters using micro four third cameras. sensor size were their only drawback.

But it does provide almost the same FF FOV, and even gives you 1-stop on APS-C cameras.

I like that he still appreciates good deals even though he’s rich.

Wow, can they make that video scream ‘INFOMERCIAL’ any louder? Why on earth did you post that here Admin?

the dude on the right is so freaking annoying, two ppl talking over each other like shadow puppets. Video could have been better without the younger geek dude talking over the older geek dude…it’s like two wolves fighting over a too small piece of meat. Hello, you;re amking a video, not having a garage styled conversation……amateurs.

Disapointing Video – not showing the AF speed or Image quality only bla bla boa

Wow, looks like I am eerily similar to Adam in my interests! He does have a better budget for his toy purchases though

If you were Sony, you’d be marketing Sony products better than they do.

Adam is confused about aps-c crop, its 1.5 not 1.88