what is "APO"?

hoppinghippo · 5th July 2002

Hi I am a newbie, and would like to know what's "APO"? I see in lens names or descriptions. what does it stand for? thanx!

rueyloon · 5th July 2002

"apo" means "old lady", it is a dilect called "hokkien" commondly used in singapore.

ok, "apo" means Apochromatic, it means it is "color corrected", different color will bend differently, which means it will cause color fringing if it is not corrected.

Larry · 5th July 2002

were you looking at Sigma lens? cos they have a standard APO abbreviation on some of their lens... can read more about it here... it's more or less the equivalent 'technology' (if you can call it that) of Nikon's ED lens.

hoppinghippo · 5th July 2002

Orrrrrrr.... now I understand!! Arigato!! I think APO now means All Price Over (budget) .... heh....

ninelives · 31st October 2002

"Apochromatic" elements improve contrast and sharpness by reducing chromatic aberration (color defects) that usually occur in tele lenses. These elements are able to focus different wave lengths of one light ray in one point. These elements are quite expensive and usually not used for cheaper lenses. The problem is however that the quality of these special elements varies heavily so the effect is often downgraded to a marketing gag - this is especially true for some third-party manufacturers!
As a rule-of-thumbs a good long tele lens will always feature two or more of these special elements.

Source : www.photozone.de

denizenx · 31st October 2002

Quote:

Originally posted by hoppinghippo
Orrrrrrr.... now I understand!! Arigato!! I think APO now means All Price Over (budget) .... heh....

this is still a bette name LOL

5th July 2002	#1
hoppinghippo Member Join Date: Apr 2002 Posts: 559	what is "APO"? Hi I am a newbie, and would like to know what's "APO"? I see in lens names or descriptions. what does it stand for? thanx!

5th July 2002	#2
rueyloon Member Join Date: Jan 2002 Posts: 1,538	"apo" means "old lady", it is a dilect called "hokkien" commondly used in singapore. ok, "apo" means Apochromatic, it means it is "color corrected", different color will bend differently, which means it will cause color fringing if it is not corrected. __________________ 36frames Wedding Photography - http://www.36frames.com rueyloon - http://www.rueyloon.com

5th July 2002	#3
Larry Moderator Join Date: Apr 2002 Location: singapore Posts: 6,097	were you looking at Sigma lens? cos they have a standard APO abbreviation on some of their lens... can read more about it here... it's more or less the equivalent 'technology' (if you can call it that) of Nikon's ED lens.

31st October 2002	#5
ninelives Senior Member Join Date: Jan 2002 Location: BB Posts: 2,622	"Apochromatic" elements improve contrast and sharpness by reducing chromatic aberration (color defects) that usually occur in tele lenses. These elements are able to focus different wave lengths of one light ray in one point. These elements are quite expensive and usually not used for cheaper lenses. The problem is however that the quality of these special elements varies heavily so the effect is often downgraded to a marketing gag - this is especially true for some third-party manufacturers! As a rule-of-thumbs a good long tele lens will always feature two or more of these special elements. Source : www.photozone.de