Sunday Poll: Three Fifties, One Wall

Sunday Poll: Three Fifties, One Wall

  • Total voters
    35
  • Poll closed .
red, one objective way to examine flat field performance of the two zeiss lenses would be to download the lenses' mtf graphs from the zeiss website. the graphs indicate that the planar has superior flat field performance compared to the c-sonnar, wide open and at f4, at infinity focus. corner performance of both the c-sonnar and the lux falls off fairly abruptly, more so with the lux than the c-sonnar, based on their mtf graphs.

it wasn't my purpose to offer this poll as a means to make purchase decisions about any of the lenses. if you'd like the original files, i'd be happy to send them to you via e-mail. sorry that this poll has caused you to complain.
 
it's really a minor quibble.

I brought this point up in Keith's quiz too but we're not exactly back in 1994 where we all have 24 baud dial up modems. Most of us have decently sized monitors and reasonable internet to view pictures a bit larger in size.

As far as the MTF graphs go, I have looked at them. I was hoping for a more first hand and subjective comparison.

oh and in regards to the purchase decision there was much looking at samples, graphs and reviews, as well as asking myself what I want. I was merely musing that even at small size it's a nice lens.
 
red, first-hand, i can tell you i've kept the planar through several fifties: DR cron, rigid cron, m-hex, elmar-m, nokton f1.5. only other 50 i like as well is the c-sonnar. the planar has some barrel distortion but since i don't shoot walls as much as it might seem, it's not an issue for me. i shoot both film and digi with the planar, equally satisfied. it doesn't focus shift, though. for that i have the c-sonnar.*



*attracted to lenses that focus shift like a moth to light, i am.
 
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redisburning said:
I'm still a little surprised that A is the Lux.

I thought it was the Sonnar because I assumed that that lens would have worse corner performance but I think I got thrown off.
Click to expand...

Just out of interest, how would you judge "corner performance" in a picture where all four corners are out of focus?
 
rxmd said:
Just out of interest, how would you judge "corner performance" in a picture where all four corners are out of focus?
Click to expand...

this may be based on a faulty assumption but I figured that since the sonnar has a curvature of field that causes the plane of best focus in the corners to be closer to the camera that the corners would appear sharper since the plane of focus is in front of the wall.

is that crazy talk?
 
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