Upgrading my 21mm Skopar to a 21mm f/2.8 Biogon ?

[NB23]

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Yellow and red filters ok... But if one is to rely on ps to enchance many aspects of an image, including contrast, sharpness and color and anything else, then voigtlande lenses are more then plenty enough. I would see no point in a biogon.

 

To the op: if f4 as a maximum apeture is not an issue, i suggest that you keep it.

[Colin Barnes]

Sorry guy's, it's the 21 mm zeiss I'm talking about on a M9.This image was taken with it

 

Andy

 

doesnt matter what flavour of lens you used Andy...this is a superb shot, well done

[jacarape]

I mean, really! There's that company telling us that their f1. Lens is calibrated for accurate focusing at f2.8, making it a worthless f1.5 lens. Who, in his right mind, accepts this?

And so much more.

 

 

I guess anyone that ever bought a 35mm 1,4 ASPH accepts focus shift issues. A smart guy could work around it, no?

[NB23]

I guess anyone that ever bought a 35mm 1,4 ASPH accepts focus shift issues. A smart guy could work around it, no?

 

What kind of smartness are you refering to. As in blindly and approximately refocusing and hopng for the best?

 

Also, I am sorry but I don't believe the focus shift issue on the 35 asph lux. From what I see, the people who talk about it are mostly non-owners who never even touched the lens.

My sample is perfect and shows no focus shift at all. I never hesitate to shoot it at all apertures with perfect focus at all times.

 

Do you own the 35 lux asph? If so, can you show samples of the problem?

[Xmas]

What kind of smartness are you refering to. As in blindly and approximately refocusing and hopng for the best?

 

Also, I am sorry but I don't believe the focus shift issue on the 35 asph lux. From what I see, the people who talk about it are mostly non-owners who never even touched the lens.

My sample is perfect and shows no focus shift at all. I never hesitate to shoot it at all apertures with perfect focus at all times.

 

Do you own the 35 lux asph? If so, can you show samples of the problem?

 

Hi

 

Search 'focus shift' and e.g.

 

http://www.l-camera-forum.com/leica-forum/leica-m8-forum/103248-focus-shift-35-lux.html

 

All high speed lenses show focus shift to differing degrees, you need to have time on your hands to set up experiments.... If you have other things in life, you will probably never see it.

 

Noel

[NB23]

Hi

 

Search 'focus shift' and e.g.

 

http://www.l-camera-forum.com/leica-forum/leica-m8-forum/103248-focus-shift-35-lux.html

 

All high speed lenses show focus shift to differing degrees, you need to have time on your hands to set up experiments.... If you have other things in life, you will probably never see it.

 

Noel

 

I can assure you the 35lux asph' focus is well within its depth of field and extremely accurate wide open. This is from my plain old regular sample.

The source is important: I avoid listening to peoplr that give out second and third-hand information but make it sound like it's first-hand.

[SteveYork]

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The ZM has a lot better contrast then the CV and it is sharper. Down side is size and weight. Puts rates the ZM ahead of the Elmarit-M 21/2.8 ASPH. I've never used the Leica, but in my experience it outperforms the CV by a large margin. I went through two CV21s before I decided to upgrade to the ZM21/2.8. That was two years ago, I have no regrets.

Carl

 

I think he rates them more as equals. Not that his opinion matters. We all can look at the MTF graphs and make our own decisions.

[jacarape]

What kind of smartness are you refering to. As in blindly and approximately refocusing and hopng for the best?

 

Also, I am sorry but I don't believe the focus shift issue on the 35 asph lux. From what I see, the people who talk about it are mostly non-owners who never even touched the lens.

My sample is perfect and shows no focus shift at all. I never hesitate to shoot it at all apertures with perfect focus at all times.

 

Do you own the 35 lux asph? If so, can you show samples of the problem?

 

Hola NB. I have the old 35/1,4 "Fat" ASPH. I've never found a focus shift to be a problem in my happy snapper situations. The guys playing Dominoes was shot at 1,4 on Tri-X. I was focusing at the brightest spot in the frame, somewhere on the table. If I remember I was focusing on the dominoes, which may indicate that there was some back focus. The furthest Bloke is about 3 meters from me.

 

However the photo of the Turbo Dogs is more my happy snapper non critical use of the fat Asph. I thought of selling it to finance a Zeiss 1,5 Sonnar calibrated for 1,5, and a 21/4,5 plus a few boxes of cheap white wine. But then I have a 21mm Biogon in Contax RF mount, but one in M mount would get a lot more use.

 

Have a good weekend NB and sorry to the OP for the hijacked thread.

 

(Further OT is a Brazilian "rodeo" shot taken with the Contax IIIa RF 1,5 Sonnar. It's a cool lens, classic.)

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[roguewave]

People get defensive when one says that zeiss is Cosina. As if the term "Cosina" is supposed to mean something bad.

Cosina manufactures lenses for Nikon, pentax and a multitude more. It is one, if not the biggest, lens manufacturer.

But yes, zeiss is nothing else then a cosina product that share many parts with voigtlander lenses. I have owned many zeiss and voigtlander lenses. While all good, thet suffered when compared to Leitz lenses.

The 18mm zeiss, altough great on its own, simply has no contrast when compared to the Leica 18mm.

And what s there to be said about The pathetic focus shift beyond belief on the sonnar? I mean, really! There's that company telling us that their f1. Lens is calibrated for accurate focusing at f2.8, making it a worthless f1.5 lens. Who, in his right mind, accepts this?

And so much more.

 

So I repeat: while Zeiss and voigtlander are ok, zeiss is now a japanese product (and the fact that Zeiss, the now japanese company, dictates its specs doesn't make it any better or more "Zeiss" then what it really is. And it simply doesn't rival Leica. It simply fills a gap that's ecnomically viable. Not everyone has the money to buy a brand new Leica lens.

 

You are the one getting defensive. In fact, your images aren't interesting, even when using the most recent & most expensive Leica lenses you can purchase. To dismiss a person's image because they use Photoshop is just a reflection of your bizarre behaviors & primitive state of being. You just enjoy head banging people on this forum & it's neither necessary or useful. I see a lot finer images taken with far less quality lenses then Leica from many members on the forum than you generally post. Try getting some manners. There's an interesting discussion on this thread & frankly to turn things into a tirade & dismiss everyone's participation. Find some other sandbox to throw stones.

[kanzlr]

zeiss is nothing else then a cosina product that share many parts with voigtlander lenses

 

I wonder why you think they share parts. Have you disassembled them? Seen pictures or drawings that suggest that?

 

CV Lenses and Zeiss lenses are very different, I own both. And the Zeiss lenses are produced by Cosina to a higher price point than the CV lenses themself. I am pretty sure if Cosina decides to release € 3000,-- lenses, their performance would be close to Leica, at least. They just decided not to.

Also, they use German Zeiss equipment for Quality assurance, etc.

At least that was stated in Cosinas Press release back then.

[Xmas]

Some of the parts are identical and will swap (apart from the nameplates)

 

All aspects of the CV40 f1.4 hood and the ZM f/2 hood, are the same to my vernier gauge, except one says Zeiss... They are nice hoods, they don't reverse like the Lietz ones from the past.

 

Most of the Zeiss lenses are made by Cosina, I dont see any problem with that, apart from the helicoids seem nicer on most of the Voightlander/Cosina lenses.

 

Noel