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Archive 2006 · Contax N to Canon conversion - initial results

  
 
Pham Minh Son
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p.5 #1 · Contax N to Canon conversion - initial results


Lotusm50 wrote, "orry, I was going to try some today, but luck was not having it. When I took the cycle out for some morning exersize today, as I was going down a hill the handlebars broke(!!). Slowing the cycle down with the brake on the remaining intact half of the handlebar, the dangling half decided to swing into the front rim. The bike stopped suddenly, of course, and I went over the top. I now have a bruised sore right hand, and sore left wrist, and chunks removed from my chin, upper lip and front tooth! (Not to mention trashed...Show more

Lotusm50,
Vi auguro una pronta ripresa in modo da potete esaminare l'obiettivo fuori noi. Grazie

-Son



Sep 09, 2006 at 04:27 PM
Lotusm50
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p.5 #2 · Contax N to Canon conversion - initial results


"Un pronto ripresa", indeed! Thank you for your kind wishes. I will need them!

I am supposed to drive up to New Hampshire on Wednesday -- in part to photograph a relay race team and in part to photograph the great forests, mountains, lakes and coastline of the state, as time permits (I'll be up around Bretton Woods and then work my way down to Portsmouth). The converted lens will come with me -- provided I can steer and shift by then (my right hand has puffed up nicely -- it will be no fun having the 6-speed).



Sep 09, 2006 at 04:49 PM
Pham Minh Son
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p.5 #3 · Contax N to Canon conversion - initial results


Take some medication of your choice and ice it down to prevent the inflamation. We still need you here to do more testing of these N series lens. Good luck with the trip.

-Son



Sep 09, 2006 at 04:53 PM
pascal03
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p.5 #4 · Contax N to Canon conversion - initial results


A few shots of your favorite brandy or scotch may help as much as the medication

Hope the arm heals well and good luck with your shoot



Sep 09, 2006 at 05:34 PM
carstenw
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p.5 #5 · Contax N to Canon conversion - initial results


Lotusm50 wrote:
Sorry, I was going to try some today, but luck was not having it. When I took the cycle out for some morning exersize today, as I was going down a hill the handlebars broke(!!). Slowing the cycle down with the brake on the remaining intact half of the handlebar, the dangling half decided to swing into the front rim. The bike stopped suddenly, of course, and I went over the top. I now have a bruised sore right hand, and sore left wrist, and chunks removed from my chin, upper lip and front tooth! (Not to mention trashed Campagnolo
...Show more

Ouch, sorry to hear that. It sounds like you have some nice components, but perhaps you might consider switching handlebar manufacturer... Street bike or mountain bike? My bets are on the former, because whereas the latter get more bangs, the former are more extreme in weight-saving.



Sep 09, 2006 at 05:45 PM
Beni
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p.5 #6 · Contax N to Canon conversion - initial results


Feel better mate, I fell down a flight of stairs at a brides house on Thursday and then had to shoot the wedding - a 12 hour job. My knees are seriously sore at present...


Sep 09, 2006 at 06:23 PM
Lotusm50
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p.5 #7 · Contax N to Canon conversion - initial results


carstenw wrote:
Ouch, sorry to hear that. It sounds like you have some nice components, but perhaps you might consider switching handlebar manufacturer... Street bike or mountain bike? My bets are on the former, because whereas the latter get more bangs, the former are more extreme in weight-saving.


This was a Lemond road bike. All Campy, EXCEPT for the handlebars and stem. Hmmmm. My next bars are carbon fiber like the (now beat-up) forks, they won't crack like these did. Here is a quick shot of the damage (yes, a test. Zeiss VS 24-85 at 61mm, f11, focused on the mangled brake lever)...
http://gallery.photo.net/photo/4917184-lg.jpg



Sep 09, 2006 at 06:28 PM
carstenw
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p.5 #8 · Contax N to Canon conversion - initial results


Ouch ouch ouch. The wheel stopped a half revolution after the handlebar hit it. That is not long!


Sep 09, 2006 at 06:44 PM
Lotusm50
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p.5 #9 · Contax N to Canon conversion - initial results


Ouch, ouch is right. The chipped tooth is going to put me over the top to be my dentist's favorite customer this year.

As for the test image of the damage, here is a center 100% crop (seems pretty sharp)...
http://gallery.photo.net/photo/4917365-lg.jpg



Sep 09, 2006 at 07:38 PM
Graham Mitchell
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p.5 #10 · Contax N to Canon conversion - initial results


Lotusm50 wrote:
Sorry, I was going to try some today, but luck was not having it. When I took the cycle out for some morning exersize today, as I was going down a hill the handlebars broke(!!)....


Wishing you a speedy recovery!



Sep 09, 2006 at 08:41 PM
gtmerideth
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p.5 #11 · Contax N to Canon conversion - initial results



My wishes as well Lotus.
Your contributions are very informative and well thought out.



Sep 09, 2006 at 10:37 PM
Pondria
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p.5 #12 · Contax N to Canon conversion - initial results


OK,
I'm game. What are the good candidate N's worth converting ?



Sep 09, 2006 at 11:57 PM
Paoletto
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p.5 #13 · Contax N to Canon conversion - initial results


17-35 and 400


Sep 10, 2006 at 01:48 AM
Lotusm50
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p.5 #14 · Contax N to Canon conversion - initial results


Thanks for the kind wishes. It still hurts, but I feel like it has improved somewhat over night.

Pondria wrote:
OK,
I'm game. What are the good candidate N's worth converting ?


In addition to the 17-35 and 400 (if you can find one) suggested by Paoletto, I would certainly add the 100 Makro-Sonnar, and the 85 1.4 N-Planar. And is you don't have a normal range zoom, or have not been satisifed with the Canon 24-70 or 24-105, or just would prefer to have that Zeiss look from you zoom as well, the VS 24-85 is really very good. Here are 2 more 100% crops from the top and bottom of the mangled bike image. Notice that in the blown out, highly polished areas that there is no evidence of CA.
http://gallery.photo.net/photo/4918867-lg.jpg
http://gallery.photo.net/photo/4918866-lg.jpg



Sep 10, 2006 at 08:09 AM
Pondria
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p.5 #15 · Contax N to Canon conversion - initial results


Thanks !
I actually have the 85/1.4 Planar on manual Contax mount. But I am very interested in 24-85 range zoom as I don't have one in that range.



Sep 10, 2006 at 09:31 AM
Lotusm50
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p.5 #16 · Contax N to Canon conversion - initial results


Pondria wrote:
Thanks !
I actually have the 85/1.4 Planar on manual Contax mount.


The 85/1.4 for the N is completely different than the one for the manual focus Contax mount (and, accordingly, the ZF one). It is better in many respects than the older Contax lens.



Sep 10, 2006 at 11:03 AM
Emanuele_C
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p.5 #17 · Contax N to Canon conversion - initial results


Lotusm50 wrote:
"Un pronto ripresa", indeed! Thank you for your kind wishes. I will need them!

I am supposed to drive up to New Hampshire on Wednesday -- in part to photograph a relay race team and in part to photograph the great forests, mountains, lakes and coastline of the state, as time permits (I'll be up around Bretton Woods and then work my way down to Portsmouth). The converted lens will come with me -- provided I can steer and shift by then (my right hand has puffed up nicely -- it will be no fun having the 6-speed).


Ti auguro anch'io una pronta ripresa, Lotus! Mi spiace molto per il tuo incidente!

The most important thing is that you're well; I'm a biker too and I understand the pain when you fall from the bike at high speed.

Your last shot (broken bike) with the 24-85 shows very good colour rendition and the extreme corner crops have good detail. Do you think it's possible to have some test shots with near and far subjects at different apertures? Is it my impression or this lens performs better with nearer objects?

Thankyou very much for your efforts, REALLY appreciated!

Ciao!!!

Emanuele



Sep 10, 2006 at 02:30 PM
carstenw
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p.5 #18 · Contax N to Canon conversion - initial results


Emanuele_C wrote:
The most important thing is that you're well; I'm a biker too and I understand the pain when you fall from the bike at high speed.


High speed is not the only danger! Low speed combined with terrain can also hurt. When I got my first Shimano clip-in pedals, they were set way too tight, but I didn't know that. At the time I was living in Montréal, Québec, Canada, and was biking up and down the mountain (more of a large rock, but in some places, quite steep). At one point, I slowed down to stop, and wanted to put my foot down, but I had forgotten I was clipped in! By the time I remembered, combined with the not-yet properly remembered procedure for getting my foot out (twist it) and the too-tight pedals, I didn't get out in time, and tipped over. Unfortunately I was standing on the edge of the path, and next to the path the land sloped away very, very rapidly. I went over the edge, and rolled and rolled, sideways over the bike, myself and everything. Eventually I stopped somewhere, a little sore, next to a tree. When I got unclipped and looked where I was, I had rolled right between some very large and sharp looking rocks, and a few meters ahead, there was a 5m drop-off. I got back on the path, and decided that I needed to read the manual about the pedals. That night they were properly loosened.

About the 24-85, I must say that it sounds very attractive. I am in the moment quite intent on getting rid of my last Canon lens, although it is quite good, a 17-40L. I don't like the feel of those lenses, and would like to own just Leica (and perhaps Zeiss) glass. I prefer manual focusing anyway, but to have one general-purpose, all-round, autofocus zoom would be good.



Sep 10, 2006 at 03:34 PM
Andi Dietrich
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p.5 #19 · Contax N to Canon conversion - initial results


Lotus, may I ask how you did the conversion with what sharpening applied?

Carsten I would recommend to keep the 17-40 until you are sure you have a good alternative wa lens. With a slight crop the images look quite usable with it



Sep 10, 2006 at 03:45 PM
Emanuele_C
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p.5 #20 · Contax N to Canon conversion - initial results


bathman wrote:
Lotus, may I ask how you did the conversion with what sharpening applied?

Carsten I would recommend to keep the 17-40 until you are sure you have a good alternative wa lens. With a slight crop the images look quite usable with it


I agree with Andi, Carsten. Take a look here too:
http://forum.contax-club.org/viewtopic.php?t=11582&postdays=0&postorder=asc&start=60
You'll find a direct comparison with the 17-40L (scroll down at the middle of the page, the three park samples).

Ciao,

Emanuele



Sep 10, 2006 at 03:55 PM
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