C Biogon T* 4,5/21 ZM Data performance

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menestrel

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For thoses interesting in this lens, take a look at the following link :

http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/CBiogon4.5_21mm_ZM_e/$File/CBiogon4.5_21_ZM_e.pdf

The distortion control is just amazing...:eek:
 
reid has couple of samples in his ultra wide lens tests, I think 4,5/21 was the best from all of 21mm`s, had a lowest distortion, best flare and color control, excellent sharpness all over the place :D
 
i'm sure it's good, and the distortion line (on the graph) sure looks impressive. ehh, compared to most others that is, not that i have a clue about what the graph is saying, really.

i do know curving verticals when i see them though - and horizontals for that matter - and can't say i enjoy them too much...

now if only that certain dealer would get back to me on the price/availability issue.
 
The 21mm/2.8 Biogon is fantastic, though long for an RF lens. It seems there will be a choice of size, speed and price between two great 21mm lenses. Who needs a fat Leica 21mm ASPH now at several times the price?
 
not to forget
the 21mm f2.8 lens for the G cameras are also fantastic!
i think zeiss knows how to make wide angle stuff :) :)
YAY
 
Are there any dealer that are taking orders for this lens. I usually buy from popflash but Tony has no clue when he will get one.
 
That is a fantastic lens profile. I can't wait to see images it produces. I suspect this will be my superwide (should I ever need such a lens).
 
Have just perused the specs. This is the first CZ ZM to make me drool. Okay, I drooled over the CS50, but we know how that ended. :( To my taste, the CB21 has ideal RF qualities: small profile, broad DOF scale, no linear distortion. True to its Biogon heritage, illumination falls off like a sonofabitch. Should be an interesting comparo with my other CZ 21 (Distagon C/Y). The big question mark is lateral color...
 
haagen_dazs said:
not to forget
the 21mm f2.8 lens for the G cameras are also fantastic!
i think zeiss knows how to make wide angle stuff :) :)
YAY
Click to expand...

I just got my G Biogon and it is a wonder! Sure a 21/4 or 4.5 should be compact but I was expecting the 2.8 to be big - as it seems to be in ZM guise. This thing is the same size as the 45mm Planar! - except in diameter. I can't wait to get my first rolls back from the lab.

And for the time being I am immune to the lure of the ZM Biogons and the new CV Skopar P. For the time being...

- John
 
I for one am waiting out for this lens, due to price, size and performance. This lens is so sharp wide open according to tests I have seen that it practically hits peak performance from the off. I for one cannot see myself needing the extra aperture on a 21mm lens as then one would also turn increasingly into dof issues. 2.8 does not give full dof with a 21mm yet does not give selective focus either. A 21 f 1.0 would be handy here! for the rest this compact 21 4.5 will be perfect for my needs. I think it will sell well too.
 
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