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trifox
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Orio
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 Posted: Fri Feb 13, 2009 11:16 pm Post subject: |
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Orio wrote:
how coulfd you cope with the mirror clearance issue since the 5DmkII was (I assume) not shaved?
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trifox
Joined: 14 May 2008
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| Posted: Fri Feb 13, 2009 11:34 pm Post subject: |
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trifox wrote:
Well ,, going back to the mirror:
It is SLIGHTLY touching the mount arround the glass BUT that's ALL..
My Distagon 4/18 is MM ... the GLASS is CLEAN, clean, clean... -- no sings.. at all..
Distagon 4/18 AE should be protected even more  (different rear part)
there is not any reason for panic -- I know that my latest statment says something else
but-- the glass in untouched -- my adaptor is thick enough ..
So the answer is -- ADAPTOR -- no shaving of the mirror is required ..
I can not see any PROBLEM with distagon 4/18 on 5D mark II so far.. and also with these:
Distagon 1.4/35 -- no problem
Distagon 2.8/28 -- no problem
Planar 1.4/50 -- no problem
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Orio
Joined: 24 Feb 2007
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| Posted: Fri Feb 13, 2009 11:44 pm Post subject: |
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Orio wrote:
Trifox, the other three lenses that you mention have never (or extremely rarely) given any problem with the 5D I
While the Distagon 18 is a well known TOTAL non-worker with the unshaved 5D I
Since I read various reports that state that 5D I and 5D II have the same mirror, I wonder how can this be possible - you say "adapter", but in that case, it must be so thick to lost the infinity focus. Is that your case?
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trifox
Joined: 14 May 2008
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| Posted: Fri Feb 13, 2009 11:55 pm Post subject: |
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trifox wrote:
That's interesting!
Well -- I'll try to do some test how it works out ...
take a tripod and I'll do some better test shots with different f-stops to reach the infinity -- we shall see ..
possibly this Sunday ..
but I don't have any problem with unshaved mirror on 5D Mk II -- the mirror is working without any problem ... up - down -- no stop..
tf
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trifox
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| Posted: Sat Feb 14, 2009 12:19 am Post subject: |
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trifox wrote:
some process (sharpness) has been done on this picture .. CA still not removed sorry ..
http://photo.homer.sk/mf_lenses_gallery/000-distagon18-pp/IMG_7300a.jpg
see that woman in blue -- she is in distance about 50 m (or more)
then see the small building -- this thing is definitely about 80 metres from my lens (or more)
is this infinity enough?
see both circles:
left circle -- the building --
right circle -- the woman
let me know ..
tf
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Carlsson
Joined: 26 Jul 2008
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Location: Portugal
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| Posted: Sat Feb 14, 2009 8:57 am Post subject: |
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Carlsson wrote:
Well it looks good, but I would say that this is just near to infinity, but perhaps it's not worth to get in trouble with your mirror.
I did some tests with distagon 3.5/15 & 4/18, both did not reach infinity with unmodified adapter thickness (which was fine for the 2.8/28, 2/28 and 1.4/50).
Grinding down this adapter helped a lot.
I now have the focus confirmation beep at infinity and it looks a few percent sharper.
http://www.eldaco.net/upload/hdri/IMG_1497.jpg
| Quote: |
| is this infinity enough? |
I would say yes and perhaps it's not worth the trouble.
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banquieroderua
Joined: 09 Jan 2009
Posts: 18
Location: Florence, Italy
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| Posted: Sat Feb 14, 2009 9:14 am Post subject: Distagon 18 without shaving? |
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banquieroderua wrote:
Dear friends, I have one Distagon 18 and a 5D Mk1. I have also Contax 1,4/35 and 1,4/50 that have no problems with the mirror. But Distagon, hits! I am looking around the web to find someone saying "yes,you can use it without shaving.." Orio yesterday very kindly answered me that he too is working with a shaved 5D. And i too think that - if optic rules are again true - a thicker adapter could damage infinity focus. But, if for you it works fine, please, can you tell me where I can buy this thicker adapter? I want try.
P.S. -- I put this question (thicker adapter) few days ago to Rudolph (HappypageHK) and his reply was the same: "if i give you more thick, you'll lose infinity"
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lulalake
Joined: 22 Apr 2007
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| Posted: Sat Feb 14, 2009 7:22 pm Post subject: |
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lulalake wrote:
Thank you so much for posting these shots. I didn't realize the CA was so prevalent in this lens. I was going to buy one,  now I won't. |
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trifox
Joined: 14 May 2008
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| Posted: Sat Feb 14, 2009 8:11 pm Post subject: Re: Distagon 18 without shaving? |
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trifox wrote:
| Quote: |
| P.S. -- I put this question (thicker adapter) few days ago to Rudolph (HappypageHK) and his reply was the same: "if i give you more thick, you'll lose infinity" |
I'll give you an answer soon ...
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Carlsson
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| Posted: Sat Feb 14, 2009 9:11 pm Post subject: |
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Carlsson wrote:
| lulalake wrote: |
| Thank you so much for posting these shots. I didn't realize the CA was so prevalent in this lens. I was going to buy one, now I won't. |
Yes CA is there but it's not a problem at all, since you can eliminate it with a few clicks.
The Distagon 18 has also it strenghts, compared to other wide angle lenses it's still fine, a lot of them have CA.
I like the 18, because it's very handy, good quality, has nice contrast and color rendering and it's very resistant against flare.
I remember Orio was doing some tests with extrem backlight.
http://forum.mflenses.com/distagon-18-torture-test-t5808,highlight,distagon.html
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trifox
Joined: 14 May 2008
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| Posted: Sat Feb 14, 2009 10:02 pm Post subject: |
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trifox wrote:
Carlsson -- yes..
@ CA on Distagon 18 -- it's crazy but I love it because of its SYMMETRY ...
that means it's overhanging both edges of subject in the same amount
Zeiss is simply GENIUS --
It's easy to rid it off -- once has been removed -- you must get a nice results!
Distagon 18 is ANTIFLARE lens when you have something between you and the sun -- the flare equals ZERO! NOTHING!
... and also -- see the indoor shot -- it's perfect against tungsten .. no flare on edges! that's a perfect result for lens from 70's !
They say that Distagon 18 has one of the smoothest focusing rings ...
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lulalake
Joined: 22 Apr 2007
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| Posted: Sat Feb 14, 2009 10:23 pm Post subject: |
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lulalake wrote:
| Carlsson wrote: |
| lulalake wrote: |
| Thank you so much for posting these shots. I didn't realize the CA was so prevalent in this lens. I was going to buy one, now I won't. |
Yes CA is there but it's not a problem at all, since you can eliminate it with a few clicks.
The Distagon 18 has also it strenghts, compared to other wide angle lenses it's still fine, a lot of them have CA.
I like the 18, because it's very handy, good quality, has nice contrast and color rendering and it's very resistant against flare.
I remember Orio was doing some tests with extrem backlight.
http://forum.mflenses.com/distagon-18-torture-test-t5808,highlight,distagon.html |
Yes I used to shoot a Sony F828 and got very used to fixing CA (Ha Ha). It's not hard to do and I do love the look of the pics from the Distagon. Mabey if I get a good deal on the lens I will get one.
Cheers
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Orio
Joined: 24 Feb 2007
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| Posted: Sun Feb 15, 2009 12:05 am Post subject: |
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Orio wrote:
I dont really have CA with my copy - see my sample pictures linked in a previous image - down the page, after the backlight shots, there are some 100% crop tests against the sky.
Maybe I've got a luck copy, I don't know.
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trifox
Joined: 14 May 2008
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| Posted: Sun Feb 15, 2009 9:07 pm Post subject: |
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trifox wrote:
Trying to reach an infinity today --
got a tripod and went out ...
f/11, ISO 100, 1/60 sec... tripod, camera 5D Mk II
so my adaptor on 5D Mk II works well and I have found this result as good.
PP -- LightRoom, CA reduced (very EASY , sharpness done
http://photo.homer.sk/mf_lenses_gallery/000-distagon18-pp/IMG_7668.jpg
see details of buildings -- they were about half a kilometer from the camera ..
my conclusion?
my adpator is OK and also I can not see (or hear) that the mirror hits the lens (rear element of course
any comments appreciated ...
tf
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poilu
Joined: 26 Aug 2007
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| Posted: Sun Feb 15, 2009 9:31 pm Post subject: |
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poilu wrote:
| trifox wrote: |
Trying to reach an infinity today --
got a tripod and went out ...
f/11, ISO 100, 1/60 sec... tripod, camera 5D Mk II
so my adaptor on 5D Mk II works well and I have found this result as good.
PP -- LightRoom, CA reduced (very EASY , sharpness done
http://photo.homer.sk/mf_lenses_gallery/000-distagon18-pp/IMG_7668.jpg
see details of buildings -- they were about half a kilometer from the camera ..
my conclusion?
my adpator is OK and also I can not see (or hear) that the mirror hits the lens (rear element of course
any comments appreciated ...
tf |
nice samples tF!
with a 18mm @F11, if you focus @ 1m, you have a dof from 49cm to infinity so your test doesn't tell everything
the borders look better on the near samples (shop is perfect)
if Orio get better results @ infinity, it is possible that you don't reach infinity |
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banquieroderua
Joined: 09 Jan 2009
Posts: 18
Location: Florence, Italy
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| Posted: Sun Feb 15, 2009 9:58 pm Post subject: 18 mm focus & adapters |
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banquieroderua wrote:
yes... thank for your answer... Trifox, I also think that using f/11 on a 18 mm helps much having good DOF, but every case it is good for me. My two different adapter hit the mirror!!
My fear is that Canon builds 5D with too much tolerance... so, the same ring works with your 5D and - peraphs - not with mine... But if you tell me where buy one like your, I can try, before shaving my mirror.
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trifox
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| Posted: Sun Feb 15, 2009 10:47 pm Post subject: |
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trifox wrote:
yes, banquieroderua, of course,
I'll give as many details as I can, tomorrow if this OK ..
tf
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banquieroderua
Joined: 09 Jan 2009
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| Posted: Thu Feb 19, 2009 7:03 pm Post subject: How much to shave |
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banquieroderua wrote:
Well, I mesured the mirror of 5D, and the back of my Distagon (not FF), vs. the back of other objectifs, as the SMC Takumar 50 f/1,4 with his adapter....
that hits the mirror when focused at infinity.
I think I have to shave at least 2,5 mm!!
I cannot do this to my beloved 5D... so I think to go on working with my Canon EF 17-40 f/4 L and re-selling the beautiful, perfect Distagon 18....
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trifox
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| Posted: Fri Feb 20, 2009 1:06 pm Post subject: |
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trifox wrote:
oooopss!! please, don't sell it until I will give some pics of adapter to you..
I am so busy - but I definitely do it tonight to see the difference and you may make the final decision then..
tf
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banquieroderua
Joined: 09 Jan 2009
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Location: Florence, Italy
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| Posted: Fri Feb 20, 2009 4:05 pm Post subject: Distagon 18 on Canon 5D |
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banquieroderua wrote:
Ok, don't worry, I can wait...
I like much Zeiss colours, contrast and 3 D rendition, I have some slides taken in the early 70es when I was a student with a very simple camera but with a Zeiss true Tessar...my first CZ. Beautiful!
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F16SUNSHINE
Joined: 20 Aug 2007
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| Posted: Fri Feb 20, 2009 4:17 pm Post subject: |
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F16SUNSHINE wrote:
If you change lens skip the Canon zoom.
The Zeiss ZE 2.8/21Distagon is coming soon!
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banquieroderua
Joined: 09 Jan 2009
Posts: 18
Location: Florence, Italy
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| Posted: Fri Feb 20, 2009 9:47 pm Post subject: Distagon 18 without shaving? |
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banquieroderua wrote:
Sunshine, you too have 5D and the Zeiss 4/18. You can use the two together?
P.S. - this evening I took some photos of my daughter (24 years old) dressed like Vampire (in Italy we have Carnival). At home, low low light... I used my Contax 1,4/85 and after the Canon zoom 4/70-200 stabilized... well, the Contax is more fast, but the stabilization works fine indeed!!!
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trifox
Joined: 14 May 2008
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| Posted: Fri Feb 20, 2009 11:12 pm Post subject: |
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trifox wrote:
hi there!!
see these pics:
http://photo.homer.sk/mf_lenses_gallery/000-eos-adapter/index.html
at last! I have taken a couple of pics of two different adapters EOS-C/Y..
picture number 1 - thin one - you can not reach infinity via this - I would say NEVER ..
picture number 2 - 'good thick enough' - no problem to infinity - plain surface..
picture number 3 - comparison in thickness.. plain one is thicker ...
conclusion ? I have purchased three from one guy in Macao (his ID on ebay is:
http://myworld.ebay.co.uk/kengchu88
well, it seems to be that he doesn't sell these things anymore.
So the adapter with a plain surface - picture number 2 -- can guarantee the infinity..
If you see an adapter like this -- go for it -- no matter what seller is selling this ..
I have got two from different sellers such as on the picture 2 and they work well ..
The difference in thickness is compared on picture 3 -- the adapter which is thicker has a plain surface ...
tf
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Orio
Joined: 24 Feb 2007
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| Posted: Fri Feb 20, 2009 11:15 pm Post subject: |
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Orio wrote:
thanks Trifox for sharing the useful information.
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