DA / DG/ DL

Lynton
Posted 11/05/2009 - 20:30 Link
Hi all,

Sorry for a numpty question - whats the difference between DA / DG / DL in lens names?

Thanks.


Lynton
Mannesty
Posted 11/05/2009 - 20:54 Link
DA is a Pentax prefix meaning it's optimised for the APS-C sensor found on their DSLR's. The lens produces and image circle to fit the APS-C sensor and will probably cause vignetting if used on a 35mm film camera.

DG and DL are found on Sigma's lenses. I've no idea what they mean.
Peter E Smith - flickr Photostream
Edited by Mannesty: 11/05/2009 - 20:54
Oggy
Posted 11/05/2009 - 21:01 Link
I think DG is Sigmaese for DA, but cannot get on their site to confirm at the minute.
Comment Image
Lynton
Posted 11/05/2009 - 21:44 Link
cheers guys - much appreciated, just having a look through ebay and potentialy another purchase coming on........ however with 28-50 and 50-200, and a 500 reflector, covered can I justify another lens?

Really good how these camera bods make it so easy for us newbies to understand....

DA = APS-C
DG = DA (ish)
DG = Digital camera


need to find me a book English to Sigmaese......
Pwynnej
Posted 11/05/2009 - 21:51 Link
No.no. no.no.no....

You're getting confused with DC....

DC are the lenses specifically made for APS-C by Sigma, they CANNOT be used on film, like most of the DA lenses

DG is different, this refers to some anti-ghost coating that's applied to the rear elements of Sigma's established lenses to make them digital compatibale - but they CAN be used on film or full-frame digital cameras (and APS-H)..

DL applies to non-APO Sigma lenses and it means low dispersion, but not as low as apochromatic lenses... they (and the UC lenses) are the cheap options for those on a budget...

DA are Pentax's latest lenses optimised for digital...one or two can be used on film cameras because their image circle is large....

Peter
Z-1p, K-1, P50
F50 1.7. SMC-FAs 24, 35, 50 1.4, 85, 135. HD-FA15-30, DFA24-70, D-FA*70-200. The SMC-FA Limited Trinity.
Metz 45 CL-4, AF500FTZ. AF540FGZ.
Some Mamiya and some Nikon, and a Canon T70.
Oggy
Posted 11/05/2009 - 22:11 Link

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