Sigma 15mm fisheye

Joined
Aug 24, 2008
Messages
828
Location
USA
Does anybody know what afd means for a Sigma 15mm fisheye EX

My guess is af=auto focus; d=?

I have a serial number anywhere I can check the date of birth?

Thanks

Rags
 
Joined
Feb 19, 2006
Messages
8,400
Location
LA (Lower Arkansas)
Well...the "D" on a Nikon lens means distance. It's got something to do with measuring the distance to the subject for flash purposes. I'm reasonably sure it means the same thing on a Sigma as well.
 
Joined
Aug 24, 2008
Messages
828
Location
USA
It could mean "diagonal" (rather than circular), since it's a fisheye (just guessing)

Rags
 
Joined
May 2, 2007
Messages
5,769
Location
los angeles
I just picked up a 15mm 1:2.8 D EX ser. 1015XXX.

Seems to be the version right before the latest DG(Sigma labels this as Digital with improved coatings).

I picked my copy up from a local fellow who said he bought it new six years ago and never used it once. :smile:

My version/copy seems to do quite well into the sun and has nice contrast/color as well as sharpness - even without the newest coatings.
 
Joined
Aug 24, 2008
Messages
828
Location
USA
I just picked up a 15mm 1:2.8 D EX ser. 1015XXX.

Seems to be the version right before the latest DG(Sigma labels this as Digital with improved coatings).

I picked my copy up from a local fellow who said he bought it new six years ago and never used it once. :smile:

My version/copy seems to do quite well into the sun and has nice contrast/color as well as sharpness - even without the newest coatings.

Was yours rechipped?

I have a D700 and I've seem some mentions of canon bodies needing rechipping no mention of Nikons (that I have seen)

Rags
 

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