fredmiranda.com
Login
This topic is in the 2009 archive. You can read it and like its posts here. It is read only.

Archive 2009Contax N Image Thread

  
 
ManWearPants
Offline
Details
p.39 #1Contax N Image Thread
wayne seltzer wrote:
Did a shootout at 180-200mm with this lens, the Canon zoom and my Leica 180/2.8 APO.


How did the N rate among the other 2? I have the EF70-200/4 IS and always wonder if I should trade the IS for Zeiss.
Sep 27, 2011 at 04:34 AM
wayne seltzer
Offline
Details
p.39 #2Contax N Image Thread
Sorry, my laptop browser was somehow on a slightly zoomed in setting which I hardly ever change, so that was why it was looking less sharp. Guess I was tired late last night and didn't think about that. Thanks CPUteq for suggesting that in my other thread.

@MWP, I need to look at my comparison shots closely again and will post them, but the Contax N was sharper in the center with better contrast,less haze and also slightly better in the corners at f8 at 200mm than the 70-200/2.8L. After seeing the differences in highlight detail between my 70-200/2.8L and C/Y 100/2 Planar shots of Denali, I was on a mission to find a Zeiss zoom in that range which I could take on travel instead of the Canon which is heavy and larger. The Leica 180/2.8 APO is very sharp across the frame into the corners and is one of the best lenses I own, it is amazing. But sometimes you need a zoom for those times whether on a boat tour off the coast or on a bus in Denali and can not foot zoom and where you really need the zoom. Plus having the ability for AF or nice focus ring feel MF if you want is very nice. This Contax N is very sharp in the middle and across most of the frame, just losing a little in the corners. So far I am pleasantly surprised by how good this lens is.
Sep 27, 2011 at 11:44 AM
Mescalamba
Offline
Details
p.39 #3Contax N Image Thread
Nice choice of camera Paul, very nice colors from this mix. Kinda curious about EXIF, SLR/c really can do ISO 171, or its just EXIF bug?
Sep 27, 2011 at 02:26 PM
contas
Offline
Details
p.39 #4Contax N Image Thread
Carl zeiss T* on Foveon, Contax N 28-80mm on SD9:
Domain De Maria Dalat City

http://farm7.static.flickr.com/6151/6191656870_62bf57a50d_b.jpg
Sep 28, 2011 at 02:54 AM
nalahm
Offline
Details
p.39 #5Contax N Image Thread
thx@contas
keep on posting images from N + foveon .

Please help , do you have any idea to convert 1.4X teleconverter from sa to ef mount?

I need to try my N400 via 1.4x on my SD15 ( I have sigma 1.4x converter for SA mount.

Thanks
Sep 28, 2011 at 09:25 AM
Bifurcator
Offline
Details
p.39 #6Contax N Image Thread
nalahm wrote:
thx@contas
keep on posting images from N + foveon .



+1
Sep 28, 2011 at 09:59 AM
contas
Offline
Details
p.39 #7Contax N Image Thread
Bifurcator wrote:
nalahm wrotethx@contas
keep on posting images from N + foveon .
+1

Thanks guys, as this combo I mostly use for flower shooting so you can see it's pictures on Alt Flower thread.I thought, I discovered something for both sides Zeiss and Foveon when couple them together.Btw, there is an opinion that among SD , the SD9 is the sharpest - and dust cover of SD9 also was removed by me to reduce any obstacle to light path to sensor ( I can't assusure you can do it with other SD).
To answer your question about to converse SA TC to accept Canon mount:
1- Check your lens compatibility with TC you want to converse.
2- I never practiced it, but as my theoretical knowledge ,with SA TC you can achieve only 50% of success another 50% is DIA - destroy in action.
3- If I were you , I'll take Sigma TC for Canon, and the part you must modify is male part : and get SA mount with electrical connector from an old SA lens.
Just un-screw the EF mount and replace by SA mount , un-solder and re-solder electric connectors, you avoid the need of drilling 4 holes on the SA mount ( if you use Canon or others than Sigma for Canon TC you must drill ) .
Good luck.
http://i6.ebayimg.com/03/i/000/dc/ag/9f54_1.JPG
Sep 28, 2011 at 07:57 PM
contas
Offline
Details
p.39 #8Contax N Image Thread
Carl Zeiss T* on Foveon, Contax N 28-80mm on SD9

http://farm7.static.flickr.com/6178/6167709775_601e64ed62_b.jpg
Sep 29, 2011 at 09:24 PM
contas
Offline
Details
p.39 #9Contax N Image Thread
Carl Zeiss T* on Foveon, Contax N 28-80mm on SD9

http://farm7.static.flickr.com/6162/6167540997_126f856e31_b.jpg
Sep 29, 2011 at 09:32 PM
edwardkaraa
Offline
Details
p.39 #10Contax N Image Thread
Wayne, superb photos with the N 70-200!!!!!

PS: Just realized this lens was designed by Sigma. Not bad for a Sigma lens with T* coatings
Sep 30, 2011 at 03:54 AM
mMontag
Offline
Details
p.39 #11Contax N Image Thread
Edward,

My understanding - right or wrong - was that the lens was "produced" by Sigma - optics design by Zeiss - one could assume to keep cost low - that lens won't win any high quality build awards but may be one of the smallest / lightest 70-200 FL lenses available. Fits inside of a #1 narrow LowePro lens case - their smallest lens case.

Another nice feature of that lens is the approximate 24" @ 200mm & 32" @ 70mm MFD and very good IQ out at 200mm - the Canon 70-200/4 - has a 48" MFD and noticeable lack of IQ at MFD's & out at the long end - very good build however with size & weight to match.
Sep 30, 2011 at 06:02 AM
ManWearPants
Offline
Details
p.39 #12Contax N Image Thread
I wonder if Conurus will convert the original Sigma 70-200 f3.5-4.5
Sep 30, 2011 at 06:15 AM
edwardkaraa
Offline
Details
p.39 #13Contax N Image Thread
There was a thread on Conurus forum in which there was a reply from Zeiss specifically acknowledging that the lens was a Sigma design but was approved by Zeiss as conforming to their high standards, or something like that. Maybe someone can dig up that thread, I tried but couldn't find it.
Sep 30, 2011 at 06:25 AM
edwardkaraa
Offline
Details
p.39 #14Contax N Image Thread
Found it:

http://conurus.com/forum/viewtopic.php?t=299&postdays=0&postorder=asc&start=15

The lenses in question are the N 28-80 and 70-200, both designed and manufactured by Sigma.



Sep 30, 2011 at 07:24 AM
wayne seltzer
Offline
Details
p.39 #15Contax N Image Thread
edwardkaraa wrote:
Wayne, superb photos with the N 70-200!!!!!

PS: Just realized this lens was designed by Sigma. Not bad for a Sigma lens with T* coatings


Thanks Edward!
Very good, someone has been doing their Zeiss homework.
Yes, I saw that thread in the Conurus website forum with the email snippet from Zeiss admitting this was true.
Sep 30, 2011 at 08:06 AM
edwardkaraa
Offline
Details
p.39 #16Contax N Image Thread
wayne seltzer wrote:
edwardkaraa wroteWayne, superb photos with the N 70-200!!!!!

PS: Just realized this lens was designed by Sigma. Not bad for a Sigma lens with T* coatings
Thanks Edward!
Very good, someone has been doing their Zeiss homework.
Yes, I saw that thread in the Conurus website forum with the email snippet from Zeiss admitting this was true.


Anyhow, the 70-200 does show a lot of Zeissness as is evident in your photos. I suspect the T* coatings to play an important role in that.
Sep 30, 2011 at 08:44 AM
DocsPics
Offline
Details
p.39 #17Contax N Image Thread
Paul,

#2 is phenomenal (Would like to see it resized in order to view w/o scrolling)
Sep 30, 2011 at 07:06 PM
contas
Offline
Details
p.39 #18Contax N Image Thread
edwardkaraa wrote:
Found it:

http://conurus.com/forum/viewtopic.php?t=299&postdays=0&postorder=asc&start=15

The lenses in question are the N 28-80 and 70-200, both designed and manufactured by Sigma.
Not bad for a Sigma lens with T* coatings .


This is must be the funiest knowledge I've ever heard about Zeiss.So according to you, Zeiss gave Sigma the rights does designing, manufacturing on their lenses , then sent T* emulsion to Sigma for coating, then did Zeiss stamps on certifications for those lenses ? Pls don't push us to accept that the Zeiss owners were the German Idiots.
Sep 30, 2011 at 08:09 PM
mMontag
Offline
Details
p.39 #19Contax N Image Thread
Bill,

Nice landscapes & a very nice landscape zoom - San Juans - unusual Autumn this year - the color change is a full week, maybe week and a half late this year.

I've never had problems with filters on that lens and it sounds opposite of the common remedy of putting a stuck lens / filter into the freezer to contract & release pressure between the two - a good thread cleaning might help.
Sep 30, 2011 at 09:21 PM
edwardkaraa
Offline
Details
p.39 #20Contax N Image Thread
contas wrote:
edwardkaraa wroteFound it:

http://conurus.com/forum/viewtopic.php?t=299&postdays=0&postorder=asc&start=15

The lenses in question are the N 28-80 and 70-200, both designed and manufactured by Sigma.
Not bad for a Sigma lens with T* coatings .
This is must be the funiest knowledge I've ever heard about Zeiss.So according to you, Zeiss gave Sigma the rights does designing, manufacturing on their lenses , then sent T* emulsion to Sigma for coating, then did Zeiss stamps on certifications for those lenses ? Pls don't push us to accept that the Zeiss owners were the German Idiots.


Do you read English or is this some kind of Vietnamese humor? Not according to me, according to ZEISS!
Sep 30, 2011 at 10:23 PM
FM ForumsLeica & Alternative GearJoin Upload & Sell
  
 

You are not logged inLog inRegister