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04-13-2008, 03:16 PM   #16
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QuoteOriginally posted by selar Quote
Olympus, Voigtlander APOs, even the Samsung kit lenses, Sigma 14 EX, etc.
Mmmm ... right.

You don't see that level of purple fringing in any of those lenses ... until you do.

You can visit the public Pbase galleries and find sample images showing purple fringe taken with all of the lenses you mentioned.

Virtually any lens can show "some" purple fringing in the right conditions. The difference is whether the purple fringe is "severe and obvious" in most shots or whether it's well controlled and visible only under extreme magnification or in very bad situations.

04-13-2008, 07:18 PM   #17
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QuoteOriginally posted by JJJPhoto Quote
Mmmm ... right.

You don't see that level of purple fringing in any of those lenses ... until you do.

You can visit the public Pbase galleries and find sample images showing purple fringe taken with all of the lenses you mentioned.

Virtually any lens can show "some" purple fringing in the right conditions. The difference is whether the purple fringe is "severe and obvious" in most shots or whether it's well controlled and visible only under extreme magnification or in very bad situations.
I've seen PF by the Voigtlander 125 macro, not as bad as the DFA100 macro, but the PF is still there.
04-13-2008, 08:21 PM   #18
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QuoteOriginally posted by frank Quote
I've seen PF by the Voigtlander 125 macro, not as bad as the DFA100 macro, but the PF is still there.
Right, Frank. Only the Voigtländer 180/4 is totally immune from purple fringing, even at 400%!

Cheers!

Abbazz
04-13-2008, 08:41 PM   #19
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QuoteOriginally posted by Abbazz Quote
Right, Frank. Only the Voigtländer 180/4 is totally immune from purple fringing, even at 400%!

Cheers!

Abbazz
That's good to know. Pity it's an F4 lens, otherwise it probably would be a good contender of the DA/FA*200/2.8

04-13-2008, 09:19 PM   #20
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QuoteOriginally posted by mauricio Quote
The lens does have some purple fringing. I
This is a 100% crop. It's a leaf with overcast sky, taken a few minutes ago.

What you see on this particular example is not purple fringing. It's plain old lateral color (transverse chromatic aberration).

This sample from JJJPhoto shows purple and green fringing due to axial color (longitudinal chromatic aberration).

Cheers!

Abbazz

Last edited by Abbazz; 04-13-2008 at 09:33 PM.
04-13-2008, 09:50 PM   #21
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QuoteOriginally posted by Abbazz Quote
Right, Frank. Only the Voigtländer 180/4 is totally immune from purple fringing, even at 400%!

Cheers!

Abbazz

Alas, even the godlike Voigtlander 180 APO Lanthar can PF. You just have to be in space taking a picture of a supernova occuring behind a black hole, and then magnify the image with a scanning-tunneling microscope. There, right next to that carbon atom, you see PF! How disappointing.

. . . . . .

Last edited by jsherman999; 04-13-2008 at 09:57 PM.
04-14-2008, 06:32 AM   #22
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QuoteOriginally posted by Abbazz Quote
Right, Frank. Only the Voigtländer 180/4 is totally immune from purple fringing, even at 400%!

Cheers!

Abbazz
I was referring to the 180/4 as its the only Voigtländer I have. It fills the gap between 135 of the DA* and the 300 of the F* rather nicely and is compact and macro as well - an umlaut punctuates the stars.

I thought the DA lenses were going to be small.
04-14-2008, 09:35 AM   #23
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QuoteOriginally posted by k100d Quote
and by extension the Pentax kit lenses?
Kit lens DA 18-55 @40mm/f8 on K10D (don't forget that purple fringing is highly sencor depentable)
crop of upper left corner.

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