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koji
Joined: 21 Jul 2008
Posts: 2106
Location: Hiroshima, Japan
Expire: 2012-12-27
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 Posted: Mon Aug 24, 2009 5:45 pm Post subject: EXAKTA to EOS adapter from Alex |
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koji wrote:
Here is yet another new EXAKTA->EF adapter from Alex.
The left one is Alex's new adapter, two metal construction of brass, the right one is mine of aluminum one piece construction.
This adapter is solidly made, the lens is tightly mounted without fear of loosing (the both do not have mount stopper mechanism thou).
The new one is well made but a tad too thick to achieve infinity focus with my Biotar 58/2, though it does not affect too much for practical shooting and depending on your lens.
The new one has 1.02 mm +/- 0.05 whereas my old one has 0.74 mm +- 0.05 thickness.
This is a very sexy looking adapter, I am not sure adapter should have a sexy look or not, but certainly does not harm. 
Quick shots by my Biotar 58mm F2 with EOS 5D (both at F2.8 ) + new adapter (my lens has shutter button removed)
One more note, you cannot mount the older(?) style Exakta lenses with shutter button sticking from the lens body, you cannot mount on the adapter.
I tries another such lens Tessar 50/2.8, could not mount it because shutter button's base is a bit too thick to interfare with adapter's base.
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Last edited by koji on Tue Sep 22, 2009 12:59 pm; edited 1 time in total |
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Jesito
Joined: 24 Aug 2007
Posts: 5745
Location: Olivella, Catalonia, (Spain)
Expire: 2015-01-07
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| Posted: Wed Sep 02, 2009 12:14 am Post subject: |
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Jesito wrote:
Hi Koji, thanks for the report.
I own the one at the right and to me is too weak to put valuable zooms on it, I always think it's going to break, (Thin alu).
Regarding infinity, half of my Exakta lenses do not allow for the infinity focus with the right ona either...
I'll be ordering one from Alex.
Thanks again!.
Jes
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koji
Joined: 21 Jul 2008
Posts: 2106
Location: Hiroshima, Japan
Expire: 2012-12-27
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| Posted: Wed Sep 02, 2009 1:33 am Post subject: |
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koji wrote:
Jesto, you are welcome.
This adapter is well made, I do not think it is going to break with
hefty zoom lenses' weight.
Enjoy shooting with your Exakta lenses.
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patrickh
Joined: 23 Aug 2007
Posts: 8551
Location: Oregon
Expire: 2011-11-18
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| Posted: Wed Sep 02, 2009 4:37 am Post subject: |
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patrickh wrote:
Koji
Do you get infinity. I bought a previous version from ALex to use with my topcors, but I cannot get infinity. Locking and stability are also issues
patrickh
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DSLR: Nikon D300 Nikon D200 Nex 5N
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, 200/4 AI, 200/4 AIS micro, 300/4.5 AI, 300/4.5 AI ED, Arsat 50/1.4, Kiron 28/2, Vivitar 28/2.5, Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
Minolta SR: 28/2.8, 28/3.5, 35/2.8, 45/2, 50/2, 58/1.4, 50/1.7, 135/2.8, 200/3.5
RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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koji
Joined: 21 Jul 2008
Posts: 2106
Location: Hiroshima, Japan
Expire: 2012-12-27
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| Posted: Wed Sep 02, 2009 11:21 am Post subject: |
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koji wrote:
Patrick, I have only one Exakta lens to test. It cannot reach infinity focus,
but very close to it so practically no problem for me. YMMV
The longer FL lens may have a problem to reach infinity focus, though
I cannot comment for tele-lens. It is kinda sad to shave this beautifully
made adapter to shave!
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Wed Sep 02, 2009 11:30 am Post subject: |
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Attila wrote:
| koji wrote: |
Patrick, I have only one Exakta lens to test. It cannot reach infinity focus,
but very close to it so practically no problem for me. YMMV
The longer FL lens may have a problem to reach infinity focus, though
I cannot comment for tele-lens. It is kinda sad to shave this beautifully
made adapter to shave! |
I have similar experience but with Exakta - Olympus adapter from Alex and other HK sellers. I found many lenses not adjusted well and no infinity even on genuine Exakta body. To be sure adapter or lens case problem check your lens if you can on genuine exakta body first.
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patrickh
Joined: 23 Aug 2007
Posts: 8551
Location: Oregon
Expire: 2011-11-18
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| Posted: Wed Sep 02, 2009 2:34 pm Post subject: |
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patrickh wrote:
Good idea Attila. As it happens I have an exakta lying around 
patrickh
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DSLR: Nikon D300 Nikon D200 Nex 5N
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, 200/4 AI, 200/4 AIS micro, 300/4.5 AI, 300/4.5 AI ED, Arsat 50/1.4, Kiron 28/2, Vivitar 28/2.5, Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
Minolta SR: 28/2.8, 28/3.5, 35/2.8, 45/2, 50/2, 58/1.4, 50/1.7, 135/2.8, 200/3.5
RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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bob955i
Joined: 15 Apr 2007
Posts: 2495
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| Posted: Wed Sep 02, 2009 8:06 pm Post subject: |
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bob955i wrote:
I have one of Alex' Exakta-EOS adapters the same as Koji and would agree that it is nice and solid and well made. The only things I've noticed is that there's a tiny amount of sideways movement on every lens I fit it to and the Exakta mount lugs are showing a little bit of wear at the end although the EF mount lugs and security are fine. That said though, as this particular adapter is clearly meant to stay on the lens semi-permanently, I don't see the wear on the Exakta mount lugs as a problem and the sideways movement is negligible and unlikely to cause problems.
As a rough check on infinity focus, I used a Meyer Orestegor 4/200 and checked this lens on a couple of my Exakta bodies and a Bessaflex TM to make sure everything was good. I then mounted the lens on my EOS 3 and 5D using the Exakta-EOS adapter and compared it with what I saw through the Exakta and Bessie's VFs as I don't have any MF focus screens for either the 3 or the 5D.
Basically, if this adapter isn't quite achieving infinity focus, then it's certainly very very close to it based on my admittedly rough checks. Should I acquire a suitable focus screen for the EOS 3, I'll revisit this aspect.
Conclusion:
At the price Alex charges for it, it's certainly well worth a shot - it's cost-effective, well made and inspires confidence. You do have to use the locking screw though as the lens will likely detach itself when focusing if you don't. |
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conor12
Joined: 18 Apr 2008
Posts: 129
Location: Dublin
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| Posted: Tue Sep 22, 2009 11:18 am Post subject: Re: EXAKTA to EOS adapter from Alex |
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conor12 wrote:
| koji wrote: |
One more note, you cannot mount the older style Exakta lenses with shutter button sticking from the lens body, you cannot mount on the adapter.
I tries another such lens Tessar 50/2.8, could not mount it because shutter button's base is a bit too thick to interfare with adapter's base. |
I just bought my first Exakta lens, a Biotar 75 and I'm looking for an adapter. Would the adapter fit on the back of this? I don't have the lens yet but I presume that is just a screw and not a shutter button.
Cheers!
_________________
Yashica: 2.8/24
Leitz: Summicron-R 2/35, Summicron-R 2/50
Zeiss: Biotar 1.5/75, Contax Vario-Sonnar 4/80-200
Asahi: SMC Takumar 1.4/50
Zenit: Helios 44-M |
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Spotmatic
Joined: 18 Aug 2008
Posts: 4045
Location: Netherlands
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| Posted: Tue Sep 22, 2009 11:34 am Post subject: Re: EXAKTA to EOS adapter from Alex |
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Spotmatic wrote:
| conor12 wrote: |
| koji wrote: |
One more note, you cannot mount the older style Exakta lenses with shutter button sticking from the lens body, you cannot mount on the adapter.
I tries another such lens Tessar 50/2.8, could not mount it because shutter button's base is a bit too thick to interfare with adapter's base. |
I just bought my first Exakta lens, a Biotar 75 and I'm looking for an adapter. Would the adapter fit on the back of this? I don't have the lens yet but I presume that is just a screw and not a shutter button.
Cheers! |
Congratulations with your purchase and yes, it's just a screw that fits into the adapter. You won't have to remove anything to make it fit.
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Peter - Moderator
Pentax K-5 + Pentax 645 + Canon 5D + Bessa RF 10,5cm Heliar, and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical |
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koji
Joined: 21 Jul 2008
Posts: 2106
Location: Hiroshima, Japan
Expire: 2012-12-27
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| Posted: Tue Sep 22, 2009 12:41 pm Post subject: Re: EXAKTA to EOS adapter from Alex |
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koji wrote:
| conor12 wrote: |
| koji wrote: |
One more note, you cannot mount the older style Exakta lenses with shutter button sticking from the lens body, you cannot mount on the adapter.
I tries another such lens Tessar 50/2.8, could not mount it because shutter button's base is a bit too thick to interfare with adapter's base. |
I just bought my first Exakta lens, a Biotar 75 and I'm looking for an adapter. Would the adapter fit on the back of this? I don't have the lens yet but I presume that is just a screw and not a shutter button.
....
Cheers! |
Your Exakta lens wont need any surgery. My two Exakta lenses are both older type(?), shutter button extension
is stinking out from the lens body. Some lenses look like >
A) prevents the lens from mounting to any EXA->EOS adapter
B) interferes with the penta-prism housing of some cameras
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conor12
Joined: 18 Apr 2008
Posts: 129
Location: Dublin
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| Posted: Tue Sep 22, 2009 1:07 pm Post subject: |
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conor12 wrote:
Thank you both!!!!
_________________
Yashica: 2.8/24
Leitz: Summicron-R 2/35, Summicron-R 2/50
Zeiss: Biotar 1.5/75, Contax Vario-Sonnar 4/80-200
Asahi: SMC Takumar 1.4/50
Zenit: Helios 44-M |
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