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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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 Posted: Wed May 21, 2014 7:41 pm Post subject: Has anyone tried Speed booster with MF lens on full frame? |
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JohnBar wrote:
I guess this could work with Sony A7 FF camera. With the 1.5x wider aspect from the medium format lens to FF sensor
eg Hasselblad to EOS mount converter to EOS/NEX speed booster, or other combinations possible.
I dont have a SB or an A7 but maybe someone does and can tell.
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15685
Expire: 2014-01-07
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| Posted: Wed May 21, 2014 8:18 pm Post subject: |
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iangreenhalgh1 wrote:
What would be the point?
Big, heavy, slow glass that isn't any better than smaller, lighter, faster 35mm alternatives.
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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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| Posted: Wed May 21, 2014 8:39 pm Post subject: |
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JohnBar wrote:
I Like big heavy glass :LOL
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Gerald
Joined: 25 Mar 2014
Posts: 1196
Location: Brazil
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| Posted: Wed May 21, 2014 8:58 pm Post subject: |
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Gerald wrote:
I am afraid the Speed Booster doesn't cover the FF format...
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Wed May 21, 2014 9:01 pm Post subject: |
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luisalegria wrote:
Well, there are "special cases".
What about a Zeiss Sonnar 180/2.8 ? This could turn it into a 135mm f/2, more or less, and probably a better one than any 135/2 before the modern era.
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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| Posted: Wed May 21, 2014 9:06 pm Post subject: |
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JohnBar wrote:
| Gerald wrote: |
| I am afraid the Speed Booster doesn't cover the FF format... |
Dont forget it is working with a much larger image circle to begin with
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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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| Posted: Wed May 21, 2014 9:07 pm Post subject: |
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JohnBar wrote:
| luisalegria wrote: |
Well, there are "special cases".
What about a Zeiss Sonnar 180/2.8 ? This could turn it into a 135mm f/2, more or less, and probably a better one than any 135/2 before the modern era. |
yes, there are other nice examples too
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Gerald
Joined: 25 Mar 2014
Posts: 1196
Location: Brazil
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| Posted: Wed May 21, 2014 9:19 pm Post subject: |
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Gerald wrote:
| JohnBar wrote: |
| Gerald wrote: |
| I am afraid the Speed Booster doesn't cover the FF format... |
Dont forget it is working with a much larger image circle to begin with |
Then let me put it another way: the Speed Booster was not designed to work with a large image circle as produced by a MF lens. The vignetting and off-axis aberrations will be horrible.
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If raindrops were perfect lenses, the rainbow did not exist. |
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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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| Posted: Wed May 21, 2014 9:31 pm Post subject: |
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JohnBar wrote:
| Gerald wrote: |
| JohnBar wrote: |
| Gerald wrote: |
| I am afraid the Speed Booster doesn't cover the FF format... |
Dont forget it is working with a much larger image circle to begin with |
Then let me put it another way: the Speed Booster was not designed to work with a large image circle as produced by a MF lens. The vignetting and off-axis aberrations will be horrible. |
Show me 
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Gardener
Joined: 22 Sep 2013
Posts: 950
Location: USA
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| Posted: Wed May 21, 2014 9:31 pm Post subject: |
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Gardener wrote:
| luisalegria wrote: |
Well, there are "special cases".
What about a Zeiss Sonnar 180/2.8 ? This could turn it into a 135mm f/2, more or less, and probably a better one than any 135/2 before the modern era. |
Might be cheaper to buy a modern 135/2  |
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Gerald
Joined: 25 Mar 2014
Posts: 1196
Location: Brazil
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| Posted: Wed May 21, 2014 10:01 pm Post subject: |
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Gerald wrote:
| JohnBar wrote: |
| Gerald wrote: |
| JohnBar wrote: |
| Gerald wrote: |
| I am afraid the Speed Booster doesn't cover the FF format... |
Dont forget it is working with a much larger image circle to begin with |
Then let me put it another way: the Speed Booster was not designed to work with a large image circle as produced by a MF lens. The vignetting and off-axis aberrations will be horrible. |
Show me |
Don't believe me! Go ahead. If I'm right you will lose $500 but you will learn something. 
Seriously, Speed Booster barely covers the APS-C format, as can be seen in the corner of the picture by a NEX-6:
http://www.dpreview.com/articles/2667195592/first-impressions-metabones-speed-booster
From there you can imagine how bad the edges and corners of an FF image will be. Remember that the FF format is much larger than APS-C.
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Wed May 21, 2014 10:23 pm Post subject: |
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luisalegria wrote:
Well, they would need a version specific to a FF sensor. Bigger glass.
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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| Posted: Wed May 21, 2014 10:25 pm Post subject: |
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JohnBar wrote:
| Gerald wrote: |
| JohnBar wrote: |
| Gerald wrote: |
| JohnBar wrote: |
| Gerald wrote: |
| I am afraid the Speed Booster doesn't cover the FF format... |
Dont forget it is working with a much larger image circle to begin with |
Then let me put it another way: the Speed Booster was not designed to work with a large image circle as produced by a MF lens. The vignetting and off-axis aberrations will be horrible. |
Show me |
Don't believe me! Go ahead. If I'm right you will lose $500 but you will learn something.
Seriously, Speed Booster barely covers the APS-C format, as can be seen in the corner of the picture by a NEX-6:
http://www.dpreview.com/articles/2667195592/first-impressions-metabones-speed-booster
From there you can imagine how bad the edges and corners of an FF image will be. Remember that the FF format is much larger than APS-C. |
I remain to be convinced that a SB has a fixed image circle.
If someone has the components to test then the truth will out
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Wed May 21, 2014 11:15 pm Post subject: |
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luisalegria wrote:
Well, they would need a version specific to a FF sensor. Bigger glass.
_________________
I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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kenetik
Joined: 02 Mar 2014
Posts: 524
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| Posted: Thu May 22, 2014 2:14 am Post subject: |
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kenetik wrote:
I saw someone try this on another forum with the black one with red writing. They shot video and it vignettes like crazy, and doesn't provide good results.
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Langstrum
Joined: 16 Feb 2014
Posts: 351
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| Posted: Thu May 22, 2014 2:17 am Post subject: |
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Langstrum wrote:
I was wondering the same question, then I found this information on Metabones website:
Speed Booster® is NOT fully compatible with full-frame Sony A7, A7R or NEX-VG900. When Speed Booster® is used with Sony A7 or A7R, the camera will turn on the "APS-C Size Capture" mode automatically.
But I hope they will make other versions for full frame cameras.
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Camera: Sony A7 mark III, A6300
AF Lenses:
Canon EF 50/1.8; EF 200/2.8 L, EF 200/1.8 L, EF 300/4 L Sony E mount SEL 50/1.8 OSS, SEL 16/2.8 Fuji X mount XF 35/1.4 R
MF Lenses: Peleng MC 8/3.5, 17/2.8 Samyang 14/T3.1, 35/T1.5, TS 24/3.5 ED, 85/T1.5, Polar 85/1.4 Auto Revuenon 28/2.8; MC 50/1.4 Vega11U 50/2.8 Carl Zeiss Tessar 50/2.8 (exakta mount) Auto Chinon 50/1.9 Zenitar ME1 50/1.7 Sears Auto Sears 55/1.4; Sears 135/2.8 Auto Yashinon DX 50/1.4; Tomioka 50/1.2 SMC Pentax 50/1.7; 50/1.4 Canon FD 50/1.4 S.S.C; 55/1.2 S.S.C; FD 50/1.2 L; FD 85/1.2 L; 85/1.2 S.S.C Aspherical; FD 80-200/4 L 300/2.8 S.S.C Fluorite FD 300/2.8 L FD 200/1.8 LCosina-S 50/1.2 Helios Helios 44 Chrome f/22, 44-2, 44-3, 44M-4, 44M-7 (58/2), Helios-40 85/1.5 Jupiter Jupiter-9 85/2; Jupiter-37A 135/3.5; Jupiter-21M 200/4 Nikon Ai 105/2.5 Tairs-3S 300/4.5
Voigtlander 15/4.5 Aspherical; Ultron 35/1.7
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kenetik
Joined: 02 Mar 2014
Posts: 524
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| Posted: Thu May 22, 2014 2:27 am Post subject: |
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kenetik wrote:
Of course I was referring to China made lens turbo, poor man's speed booster. I would be interested in seeing a FF version too. Is the thing vivitar made way back when, the Macro focusing teleconvertor, similar to this in concept or is that just an extension tube?
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Mike Deep
Joined: 25 Oct 2008
Posts: 316
Location: Upstate New York
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| Posted: Thu May 22, 2014 3:21 am Post subject: |
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Mike Deep wrote:
| kenetik wrote: |
| Of course I was referring to China made lens turbo, poor man's speed booster. I would be interested in seeing a FF version too. Is the thing vivitar made way back when, the Macro focusing teleconvertor, similar to this in concept or is that just an extension tube? |
The Vivitar is a stationary 2x TC with a helicoid extension tube in front of it.
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Rocket Launch Photography
Olympus: 24/2.8 MC, 28/3.5, 28/2.8 MC, 35/2.8, 50/3.5, 50/1.8, 50/1.4 MC, 35-70/3.6, 75-150/4
Nikon: C 24/2.8, AI-S 28/2.8, K 35/2.8, F 55/3.5, F 105/2.5, F 135/2.8, F 200/4, No. 5T
Pentax: 28/3.5, 35/3.5, 50/1.4 (v1), 50/1.4 (v2), M 50/1.4, SMC 55/1.8, 105/2.8, SMC 135/3.5, 150/4
Tamron: SP 17/3.5 151B, 135/2.8 T-135, SP 300/2.8 60B, SP 35-80/2.8-3.8 01A, 80-210/3.8-4 103A, SP 1.4x TC 140F, SP 2x TC 01F
Vivitar: 24/2 (Kino), 28/2 (Kino), 50/1.4 (Cosina), S1 90/2.5 (Tokina), S1 28-80/2.8-3.5 (Kino), 70-150/3.8 (Kino), S1 70-210/3.5 (Kino), 2x Macro TC
Etc: Yashica 3.5cm/2.8, Fujinon 50/1.4, Yashica ML 50/1.4, Tomioka Yashinon 55/1.2, Mamiya/Sekor 55/1.7, Sigma 90/2.8
That's a lot of 50s. |
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dan_
Joined: 05 Dec 2012
Posts: 1054
Location: Romania
Expire: 2016-12-19
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| Posted: Thu May 22, 2014 7:25 am Post subject: |
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dan_ wrote:
I did some tests with an 114mm Heliar (covering ~ 8x12 cm) with SB on my Linhof. Gerald is right, the Speed Booster doesn't cover FF.
You can see here the image produced by by the Heliar+SB combination (tape mounted and not well centered) on the ground glass:
The GG squares are 1x1 cm.
Last edited by dan_ on Thu May 22, 2014 11:25 am; edited 1 time in total |
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CuriousOne
Joined: 31 Dec 2013
Posts: 669
Location: Home
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| Posted: Thu May 22, 2014 7:57 am Post subject: |
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CuriousOne wrote:
I have a custom made speed booster for Kaleinar-3B (150/2. lens. It is M42 mount and should offer 0.45x reduction. It works just fine on NEX-3. I don't have FF digital camera, so I've used that lens with M42 to A mount adapter and tested on Minolta film camera body. Obviously, I was not able to get lens focused, due to different register distances, but there was no noticeable vignetting in viewfinder. So in general, this idea seems to be not that bad.
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JohnBar
Joined: 21 Jun 2012
Posts: 581
Location: Liverpool
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| Posted: Thu May 22, 2014 9:01 am Post subject: |
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JohnBar wrote:
| dan_ wrote: |
I did some tests with an 114mm Heliar (covering ~ 8x12 cm) with SB on my Linhof. Gerald is wright, the Speed Booster doesn't cover FF.
You can see here the image produced by by the Heliar+SB combination (tape mounted and not well centered) on the ground glass:
The GG squares are 1x1 cm. |
You nailed it, SB proven not to work.
Thanks to all contributors most appreciated.
Special thanks to Gerald for being persistently correct 
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