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Kipon Baveyes Adapter
Converts Full-Frame lenses to APS-C
Adds one stop of speed

Sample Images   Intro   Specs   

Performance   Recommendations

Kipon Baveyes adapter

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Kipon Baveyes 0.7x Adapter (converts APS-C sensor to full-frame and adds one stop of speed, 5.485 oz./155.5 g, about $310). enlarge. I got mine at Adorama; I'd also get it at Amazon or at B&H.

This ad-free website's biggest source of support is when you use those or any of these links to approved sources when you get anything, regardless of the country in which you live. Buy only from the approved sources I use myself for the best prices, service, return policies and selection. Thanks for helping me help you! Ken.

 

September 2015    Zeiss   Fuji   Sony   LEICA   Nikon   Canon   All Reviews

 

Sample Images         top

Sample Images   Intro   Specs   

Performance   Recommendations

 

With the Canon EF 14mm f/2.8 L full-frame ultra-wide:

Palm RP 25 Sep 2014

Palm, 25 September 2015. Canon EF 14mm f/2.8 L, Kipon Baveyes 0.7x adapter, Sony A6000, f/11 at 1/60. bigger or camera-original © file.

Whoa! A real 14mm-equivalnt lens on APS-C. This converter makes the 14/2.8 into a 10mm f/2.0!

 

With the Canon EF 50mm f/1.2 L full-frame lens:

Palm RP 25 Sep 2014

Palm, 25 September 2015. Canon EF 50mm f/1.2 L, Kipon Baveyes 0.7x adapter, Sony A6000, f/8 at 1/80. bigger or camera-original © file.

This adapter makes the 50/1.2L into a 35mm f/0.85.

 

Palm Trunk, RP 25 Sep 2014

Palm trunk, 25 September 2015. Canon EF 50mm f/1.2 L, Kipon Baveyes 0.7x adapter, Sony A6000, f/1.2 at 1/3,200. bigger or camera-original © file.

 

Grass Growing, RP 25 Sep 2014

Grass growing, 25 September 2015. Canon EF 50mm f/1.2 L, Kipon Baveyes 0.7x adapter, Sony A6000, f/8 at 1/400. bigger or camera-original © file.

 

With the exotic Canon EF 50mm f/1 L:

Canon 50mm f/1, , RP 25 Sep 2014

Palm growing, 25 September 2015. Canon EF 50mm f/1 L, Kipon Baveyes 0.7x adapter, Sony A6000, f/1 at 1/1,250. bigger or camera-original © file.

This adapter makes the 50/1 L into a 35mm f/0.7!

 

Introduction         top

Sample Images   Intro   Specs   

Performance   Recommendations

Adorama pays top dollar for your used gear.

B&H Photo - Video - Pro Audio

This is what astronomers call a telecompressor: it reduces the effective focal length of your lens, and adds one stop of speed in the process.

I call it a wide-converter: it compresses a full-frame image onto an APS-C sensor to show the full-frame complete image on APS-C instead of cropping it!

It lets us use full-frame lenses on APS-C cameras. It really does make APS-C cameras work like full-frame cameras!

It lets APS-C sensors use the entire field of full-frame lenses, and adds one f/stop of effective speed in the process.

To keep this very simple, imagine this as a magnifying glass that makes the sensor look bigger to the lens. This magnifying glass also concentrates the light to become twice as bright in the smaller area in which it's concentrated.

These come in at least 20 versions to adapt just about any kind of lens to Fuji, Sony or micro 4/3.

 

Good

This converter really works, giving us full autofocus, electronic diaphragm control, auto exposure, EXIF data and image stabilization.

For sanities' sake, the EXIF data records the actual focal length and aperture of the lens, not the converted values.

Even the exotic electronic manual focus of the Canon EF 50mm f/1 L really works with this adapter.

It really does let us use full-frame lenses on APS-C, and they retain their full-frame field of view.

Really does gives us an extra stop of speed.

 

Bad

Autofocus is very slower, and hunts or gets lost or stuck a lot.

There may be strong corner falloff on some lenses, but none on others.

Auto White Balance may not work as well.

Exposure may be off by a stop or more.

Resultant optical quality can be poor.

No automatic correction of distortion or lateral color fringes.

 

Extra Features

Kipon Baveyes 0.7x adapter

Tripod socket, Kipon Baveyes. bigger.

Tripod socket on bottom.

 

Specifications         top

Sample Images   Intro   Specs   

Performance   Recommendations

 

Optics

Kipon Baveyes 0.7x adapter

Kipon Baveyes. bigger.

4 elements.

 

Adapts from these lenses:

Canon EF.

Nikon F; works with G lenses.

Sony Alpha (same as Minolta MAXXUM).

Pentax M42.

Olympus OM

Contax & Yashica SLR

LEICA R.

Alpa.

PL cine.

 

To these cameras:

Fuji X.

Sony NEX.

Micro 4/3.

 

Weight

5.485 oz. (155.5 g), Canon EF to Sony NEX version.

 

Price, USA

$310, September 2015.

Kipon Baveyes Box

Kipon Baveyes box. bigger.

 

Performance         top

Sample Images   Intro   Specs   

Performance   Recommendations

 

Optics

Optical quality isn't great, but it really does work. It's worse than if you used an adapter that's just an empty tube.

If you count pixels, this isn't for you, but if you want to use a unique lens that simply doesn't exist for Fuji, Sony or micro 4/3, this is much better than no picture at all.

Resultant quality depends on your source lens; just like with teleconverters, there's no way to tell how well any particular lens works with other than to try it.

Here's the best part: unlike teleconverters that don't really work at fast apertures, I tried this with the exotic Canon EF 50mm f/1 L at f/1, and I kid you not, it really gets all the light to the sensor even at the full f/1 aperture.

 

EXIF Data

It records everything from the lens as if it weren't converted; a 50mm f/2 lens gets recorded as 50mmm f/2, not the effective 35mm f/1.4 to which it's converted.

I'm impressed that I can see f/1.0 and f/1.1 as legitimate settings in the Sony A6000 with used with the Canon EF 50mm f/1 L!

The Canon EF 50mm f/1.2 L is shown as f/1.3.

Sony uses displayed values of f/1.0, 1.1, 1.2, 1.3 and f/1.4 to cover that range unambiguously.

 

Autofocus

AF performance is horrible.

Forget this for sports, but it works for landscapes or things that hold still.

 

Mechanics

Kipon Baveyes 0.7x adapter

Kipon Baveyes. bigger.

Mechanical quality is very nice; it's all very solid metal and feels very precisely made.

 

Recommendations         top

Sample Images   Intro   Specs   

Performance   Recommendations

This is a fun gizmo for people who want to use oddball lenses on APS-C and micro 4/3 cameras.

It can be useful for using ultrawide or ultraspeed full-frame lenses on these formats.

The resulting optical quality is usually pretty bad; don't use this if you're trying to save yourself from buying the correct lenses for your camera.

Use this if you want to use your existing ultra-ultra wides or other exotic lenses on your toy cameras, but seriously folks, if you want good results, just shoot your Nikon, Canon and LEICA lenses on a full-frame Nikon, Canon or LEICA cameras for superior results.

This converter really does convert, but loses a lot of ergonomic and optical quality in the process.

This ad-free website's biggest source of support is when you get yours via these links to it at Adorama, at Amazon or at B&H. When you use those or any of these links to approved sources when you get anything, regardless of the country in which you live, it helps me keep adding to this free website — but I receive nothing for my efforts if you take the chance of buying elsewhere. Unlike a bottle of milk or a CD, Kipon doesn't seal its boxes, so you have no idea if you're getting a used, returned, incomplete or damaged product if you risk buying at retail. Never buy at retail. I use the sources I do because they have the best prices, service, return policies and selection— and they ship from secure remote warehouses where no customers or salesmen can get their sticky hands on your new camera before you do.

Thanks for helping me help you!

Ken.

 

© Ken Rockwell. All rights reserved. Tous droits réservés. Alle Rechte vorbehalten.

 

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September 2015