Vario-Sonnar T* 24-70 mm f2.8 ZA


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Drudkh said:
what's good about the R1 is there's no mirror slapping sound, so you can shoot very quietly, esp in conditions such as in an orchestra concert where silence is a must.

but R1 dun have a long zoom lor, and no anti shake.
 

Again, there is no perfect system... R1 is great for what it is... So if really that's the need, buy the R1 and Alpha 100, I am sure it will work hand in hand...

Regards,

Hart
 

Agetan said:
Again, there is no perfect system... R1 is great for what it is... So if really that's the need, buy the R1 and Alpha 100, I am sure it will work hand in hand...

Regards,

Hart
:bigeyes: dun think my A1 and 7D compliment well.
 

Del_CtrlnoAlt said:
but R1 dun have a long zoom lor, and no anti shake.

For long zoom digicam with image stabilisation, the one I use is a FZ10.
With the Panasonic LTZ10 teleconverter, it covers 35-630mm (35mm equivalence) and maintains max aperture f2.8 throughout. ;)
I use it as a backup but mostly for macro because of the wider dof I can get with it.
But back to the subject - for the new CZ lenses, I would be more interested in the 135f1.8 than the 24-70f2.8.
 

zcf said:
Since the 16-80mm is very similar to Sony R1's Carl Zeiss Vario-Sonnar lens 14.3-71.5mm

Why should theere be any similarity between these lenses? On the contrary, they must be completely different designs.
 

satay16 said:
:bigeyes: dun think my A1 and 7D compliment well.

For a matter of fact, I use A2 and 7D for work... they just work well... There are limitation on both. neither one is better than other.

Hart
 

Magnus Wedberg said:
Why should theere be any similarity between these lenses? On the contrary, they must be completely different designs.
Well I am not into lens desgin, but I thought the ratio of 5:1 of 16-80mm is very similar to Sony R1's Carl Zeiss Vario-Sonnar lens 14.3-71.5mm, the minimum aperture was quite similar also f/3.5-4.5 compare to f/3.5-4.8. So I thought they just modify a bit of the R1 lens to become the 16-80mm :embrass:
 

zcf said:
Well I am not into lens desgin, but I thought the ratio of 5:1 of 16-80mm is very similar to Sony R1's Carl Zeiss Vario-Sonnar lens 14.3-71.5mm, the minimum aperture was quite similar also f/3.5-4.5 compare to f/3.5-4.8. So I thought they just modify a bit of the R1 lens to become the 16-80mm :embrass:

That's not how it's done ;)
 

zcf said:
Well I am not into lens desgin, but I thought the ratio of 5:1 of 16-80mm is very similar to Sony R1's Carl Zeiss Vario-Sonnar lens 14.3-71.5mm, the minimum aperture was quite similar also f/3.5-4.5 compare to f/3.5-4.8. So I thought they just modify a bit of the R1 lens to become the 16-80mm :embrass:


They should be completely different... the lens for the R1 has a much smaller image circle to cover compared to the APS-C sized sensor on the Alpha-100... also the R1's is a integrated lens with a button operated zoom mechanism unlike the Alpha's where the lenses are manually zoomed in and out... these are the more obvious differences among many others which I probably won't even know cos like u, I dun know much about lens design either... :)
 

The largest difference is that the R1 lens has a very short register, that is, distance to the sensor. There is no mirror and no shutter (it's a EVF camera!) so you can basically almost touch the sensor with the rear lens element. The Minolta A mount has, of course, a rather large register as there is lots of crap that needs to fit between the rear lens and the sensor.

This is, alone, a reason why it's just not "scaling up" or down a design.
 

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