Metabones Speed Booster
/forum/topic/1181879/37

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freaklikeme
Registered: Apr 08, 2005
Total Posts: 5807
Country: United States

asbalyan wrote:
freaklikeme wrote:

Magnification ratio is based on the size of your subject relative to your capture media, so a macro lens that is designed to go to 1:2 on 35mm FF camera will go 1:1.5 on a APS-C sensor (because you've effectively cropped away part of the image the lens was designed to produce).


Thats not right... The lens which goes 1:1 on full frame will go 1:1 (same magnification ratio) on APS-xx format. APS-C cameras are nothing but the smaller sensor cameras compare to full frame... hence your capture area decreases, not the magnification.




You're right, and I didn't put that very well. It's an illusion of creating greater magnification in relation to the lens on all FF sensor via crop. But yes, with a 1:1 lens at MFD focused on a subject 36mm in length, only 23.6mm of the subject will be captured in the frame on an APS-C, which is still 1:1.



ISO1600
Registered: Jul 06, 2005
Total Posts: 4475
Country: Korea, South

my chinese one is on the way, i'm expecting it next week. I bought the Nikon AI - NEX one days before the FD was available. If i like it, I'll probably get an FD one as well for more flexibility, and maybe sell the AI.



Jeremy Reitman
Registered: Oct 27, 2006
Total Posts: 761
Country: United States

Hoping for a speed booster for Canon FD to Fuji X...Don't see anything on either the Metabones Website or the Mitakon ebay postings.



OpticalFlow
Registered: May 17, 2011
Total Posts: 189
Country: N/A

ISO1600 wrote:
my chinese one is on the way, i'm expecting it next week. I bought the Nikon AI - NEX one days before the FD was available. If i like it, I'll probably get an FD one as well for more flexibility, and maybe sell the AI.


Looking forward to samples and some first impressions !



michael49
Registered: Jun 09, 2006
Total Posts: 5434
Country: United States

Jeremy Reitman wrote:
Hoping for a speed booster for Canon FD to Fuji X...Don't see anything on either the Metabones Website or the Mitakon ebay postings.


Me too. There isn't even a C/Y to Fuji X speed booster yet as far as I'm aware.



Rich M
Registered: Jul 15, 2002
Total Posts: 260
Country: United States

michael49 wrote:
Jeremy Reitman wrote:
Hoping for a speed booster for Canon FD to Fuji X...Don't see anything on either the Metabones Website or the Mitakon ebay postings.


Me too. There isn't even a C/Y to Fuji X speed booster yet as far as I'm aware.


There is......check their website.



michael49
Registered: Jun 09, 2006
Total Posts: 5434
Country: United States

^ - thanks for that, now I'm tempted.



ISO1600
Registered: Jul 06, 2005
Total Posts: 4475
Country: Korea, South

For those that are leery of eBay for any reason, you can get the Mitakon/ZY Optical Lens Turbo from mxcamera.



Juy543
Registered: May 18, 2013
Total Posts: 7
Country: Japan

Hello.

I just got the Lens Turbo today. 13th May ordered item.

I tried to set these lenses,
Ai AF Nikkor 18mm f2.8D,
Ai Nikkor 24mm f2.8S,
Ai Nikkor 50mm f1.4S,
Ai Micro Nikkor 55mm f2.8S,
Nikkor Auto-S.C. 55mm f1.2 ( Ai-S modified).

They are all OK to fit on Lens Turbo without conflict between lens mechanics and internal area ore lens of Lens Turbo.

I posted the comparison images with/without Lens Turbo of Ai Nikkor 50mm f1.4S.

https://picasaweb.google.com/2010Dash2010/LensTurboAndAiNikkor50mmF14S?authuser=0&authkey=Gv1sRgCL6-tNPU68KsigE&feat=directlink

If it is usefull info for you, I am happy.



69kaine
Registered: May 18, 2013
Total Posts: 2
Country: N/A

Juy543 wrote:
Hello.

I just got the Lens Turbo today. 13th May ordered item.



Where did you get your Lens Turbo from? Seems to have arrived quick. There are loads of them on Ebay for sale now. To find just search focal reducer, order by newly listed and select worldwide. MD/FD mounts now available. Is there a way to adjust the Lens turbo versions for infinity like you can on the metabones version?



Juy543
Registered: May 18, 2013
Total Posts: 7
Country: Japan

69kaine wrote:

Where did you get your Lens Turbo from? Seems to have arrived quick. There are loads of them on Ebay for sale now. To find just search focal reducer, order by newly listed and select worldwide. MD/FD mounts now available. Is there a way to adjust the Lens turbo versions for infinity like you can on the metabones version?


I ordered on MXcamera web site, not on eBay. The item has shipped from HongKong to Japan by trucking airmail, so it may be relatively quick. It looks same way to adjust the position of internal lens by screw as Metabones Speed booster. The adapter that I got has been adjusted infinity. It can be seen that the adjusted position has been marked by pen.

I found that Ai Nikkor 20mm/F2.8S also fit on Lens Turbo without a scratch.



Jgreene11
Registered: Apr 24, 2011
Total Posts: 187
Country: United States

So what's the verdict? Are u happy with the lens turbo vs. the metabones? Big price difference. I hardly think autofocus is a feature worth $400 considering how slow it is.



teraflame
Registered: Nov 17, 2008
Total Posts: 190
Country: United States

Well I couldn't help it, ordered the fd lens turbo today with a nikon to fd adapter. Can't wait.



Juy543
Registered: May 18, 2013
Total Posts: 7
Country: Japan

Lens Turbo images with Ai Nikkor 20mm/F2.8S.
The distortion and blur can be seen. It might be caused from Lens Turbo.

The pictures are uploaded here.

https://picasaweb.google.com/2010Dash2010/LensTurboAndAiNikkor20mmF28S?authuser=0&authkey=Gv1sRgCMyTtaTvgeqJDw&feat=directlink



ISO1600
Registered: Jul 06, 2005
Total Posts: 4475
Country: Korea, South

wow, those pictures are quite telling.
I've got one on the way that I plan on using with three Nikkors- 35/2, 50/1.4, and 85/2, all AIS. Hopefully the effect won't be as extreme as some of your shots with the 20mm.



ISO1600
Registered: Jul 06, 2005
Total Posts: 4475
Country: Korea, South

Just checked the tracking on my Lens Turbo. Passed through Chicago on Friday the 17th, USPS. I'm thinking/hoping it'll be in my box today or tomorrow.



Juy543
Registered: May 18, 2013
Total Posts: 7
Country: Japan

Lens Turbo images with Ai Micro Nikkor 55mm/F2.8S

The lens has a guard structure on rear lens unit, however it does not conflict Lens Turbo.
Slight barrel distortion can be seen, however this reducer adapter will be quite useful for macro photography.

https://picasaweb.google.com/2010Dash2010/LensTurboAiMicroNikkor55mmF28?authuser=0&authkey=Gv1sRgCLX8gvyVy_yrDQ&feat=directlink



Jeremy Reitman
Registered: Oct 27, 2006
Total Posts: 761
Country: United States

Rich M wrote:
michael49 wrote:
Jeremy Reitman wrote:
Hoping for a speed booster for Canon FD to Fuji X...Don't see anything on either the Metabones Website or the Mitakon ebay postings.


Me too. There isn't even a C/Y to Fuji X speed booster yet as far as I'm aware.


There is......check their website.



Am I on the wrong website here?
MX Camera

Mitakon

Also, I emailed mitakon directly and they got back to me stating that an FD to fuji X adapter should be available in about a month.



ISO1600
Registered: Jul 06, 2005
Total Posts: 4475
Country: Korea, South

No, MXCamera appears to be about the easiest way to order right now, at least besides eBay.



ISO1600
Registered: Jul 06, 2005
Total Posts: 4475
Country: Korea, South

USPS site is showing mine delivered. Ebay tracking is still showing the last update prior to that.... I'll find out in about 20 minutes- this is killing me.



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