Sigma, vs Nikon. vs Tamron Help - DPChallenge Forums

07/11/2009 10:28:30 PM · #1

I've searched and searched for the answer but I just can't find what I am looking for. I know the answer but before I make a $2000 mistake I need to see some hard proof I am making the right decision.

As many of you know my D40x will only use Nikon's brand AF-S lenses but I am going to be buying a few sigma lenses. Can you help me verify the codes?

Nikon's AF-S is the same as Sigma's HSM right? Well how do I tell which is a full frame and which isn't?

Pentax DA 18-55mm f/3.5-5.6 AF

07/11/2009 10:51:19 PM · #2

Will this lens work on my camera? And on my D700 when I get it?

Sigma 50mm f/2.8 EX DG Macro Lens for Nikon SLR?

Sigma 105mm F2.8 EX Macro Lens for Nikon-AF?

Sigma 24-70mm f/2.8 EX DG Macro Aspherical Large Aperture Standard Zoom Lens for Nikon SLR Camera?

Message edited by author 2009-07-11 22:57:18.

faidoi

Pentax K10D

07/11/2009 11:05:39 PM · #3

Lenses for Nikon D40 or D60.

faidoi

Pentax K10D

Pentax DA 18-55mm f/3.5-5.6 AF

07/11/2009 11:08:10 PM · #4

Seems like all the HSM's are listed and may be all compatible.

Message edited by author 2009-07-11 23:15:04.

Maverick

Nikon D200

Tamron SP AF 90mm f/2.8 Di for Nikon

07/11/2009 11:41:46 PM · #5

Originally posted by Dirt_Diver:

Well how do I tell which is a full frame and which isn't?

If the lens has a DC attached to it, its a DX sensor size lens, otherwise its full frame. (DG refers to a Sigma coating and can be on either DX size or full frame lenses)

Message edited by author 2009-07-11 23:42:24.

Pentax DA 18-55mm f/3.5-5.6 AF

07/12/2009 01:20:33 AM · #6

What does the EX mean?

faidoi

Pentax K10D

07/12/2009 01:30:28 AM · #7

Originally posted by Dirt_Diver:

What does the EX mean?

The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.