CONTAX CLUB Carl Zeiss 討論區

What is your comments if comparing with the LEICA MACRO-ELMAR-M 90 mm f/4?

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Best Regards,

Terry Shum
香港互聯網康泰時攝影會幹事

I am not good at reading MTFs but after Wah's comment on the 85/4 I took a look at the various MTFs of ZM 85/2 Sonnar, 85/1.4 C/Y Planar and 85/2.8 C/Y Sonnar.

To me the MTF of the ZM 85/2 at f4 seems to be the best amoung all (correct me if I am wrong). What puzzle me if I am correct is how come a range finder 85mm can be superior to SLR version as design wise I believe the SLR version should not have the mirror restriction in design consideration.

Maybe Zeiss just need to make the ZM version better so that they can justify to make in Germany at selling at the price?

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Rolleiflex 3003, SL2000F - SONY Alpha7R 1/2/4. A1
Carl Zeiss C/Y T* - QBM HFT - ZM T* - ZF T* - Batis T* - Otus T* - Loxia T*
Sony. Zeiss 16-35/4 T* G200600 GM100400 GM600
http://www.fuwen.net

Actually I was always thinking if ZM Sonnar 85/2 can be re-mounted into ZF Sonnar 85/2! As the rear element is quite far away from the film plane which similar to the case of Sonnar 90/2.8 of CONTAX G.........

Anyway another reason for its higher price is due to the floating element design, which should be rather costly to manufacuture especially with the rangefinder coupling mechanism.

The only other mid-tele Zeiss lens with floating element design should be Planar 85/1.2!

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Wah
理事 - Board of Members
www.flickr.com/dicksonlau

I think there's a typo above. I always thought that the rangefinder version supposedly can be better (definitely a lot smaller) than SLR version because there's no mirror box restriction. For example Biogon 21mm & Distagon 21mm.

Wide angle design yes, not tele design as the rear element already far enough from the mirror.

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Rolleiflex 3003, SL2000F - SONY Alpha7R 1/2/4. A1
Carl Zeiss C/Y T* - QBM HFT - ZM T* - ZF T* - Batis T* - Otus T* - Loxia T*
Sony. Zeiss 16-35/4 T* G200600 GM100400 GM600
http://www.fuwen.net

Good point.

Just pull up the lens datasheet of G Sonnar 90mm/f2.8 and C/Y Sonnar 85mm/f2.8. Both have 1m min focus spec. The G's distance to film is 29mm whereas C/Y's distance to film is 45.5mm. Does this imply even at the short tele range, the mirror box restriction may still valid? It's not apple to apple comparison though because G focal length is 87.6mm whereas C/Y is exactly 90mm. Now I am interested to see how Leica plays out between M 135mm and it's R equiv.

ps/ what does 'Back Focus Distance' mean on the datasheet?

Tele-Tessar T* 85/4 ZM Vs Macro-Elmar-M 90/4. Which one is your choice?

_________________
Best Regards,

Terry Shum
香港互聯網康泰時攝影會幹事

Macro-Elmar-M only if you can buy from Keung Kee.............haha

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Wah
理事 - Board of Members
www.flickr.com/dicksonlau

You mean it is only available at Keung Kee or only Keung Kee selling it at reasonable price?

_________________
Best Regards,

Terry Shum
香港互聯網康泰時攝影會幹事

Sure for the second reason!

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Wah
理事 - Board of Members
www.flickr.com/dicksonlau

How about Tele-Tessar T* 85/4 ZM Vs M 90/2 AA?

知唔知強記邊日會開舖?

_________________
Best Regards,

Terry Shum
香港互聯網康泰時攝影會幹事

I should also say that the two lenses are actually having rather different design, with the Macro-Elmar-M as a 4 elements 4 groups design, while for Tele-Tessar 85/4 is 5 elements 3 group (for which I think more like a triplet deisgn)

MTF from Leica:

90/2 AA

http://us.leica-camera.com/assets/file/ ... e_1761.pdf

90/2.5

http://us.leica-camera.com/assets/file/ ... e_3703.pdf

90/4

http://us.leica-camera.com/assets/file/ ... e_1771.pdf

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Wah
理事 - Board of Members
www.flickr.com/dicksonlau

金融海嘯，剛剛走去訂左支Leica MACRO-ELMAR-M 90 mm f/4，希望可以沖喜下，今時今日花兩萬幾買支咁o既鏡，其實都預俾人笑傻仔，不過我足足有七個支持自己做這件傻事的原因，希望大家可以體諒。

1. 現行唯一一支縮頭設計的Ｍ系鏡頭，襯我。
2. 現行唯一一支Ｍ系銀鏡是我尚算負擔得起的。
3. M系唯一一支Macro鏡頭，在沒有帶備SLR的情況下仍可以拍Macro。
4. 一直都好想配一副M系眼鏡，不過可惜的是Leica MACRO-ADAPTER M只提供黑色。
5. 一直都好想要一個可拆除的M系金屬遮光罩，這個還可以倒接的，讚！
6. 這個復古的金屬鏡頭蓋，是我見過最漂亮的鏡頭蓋。
7. 可以幫部MP加番個耀眼的紅圈，其實我喜歡沒有紅圈的Leica。

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Best Regards,

Terry Shum
香港互聯網康泰時攝影會幹事

Support reason 8. Help the economy.

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Contax : RTS, RTSII(50Y), RTSIII, Aria D, Aria(70Y), N1, ND, T3D(70Y), G2D
Nikon : FM3A, FM3AB
Leica : M9, X1
Fuji : X100
OM : EP2