My Sigma APO 300/4 AF Macro focuses the "proper" way whereas the Vivitar Series 1 100/3.5 Macro (MF) and Tamron (old MF) 28-70 focus the "wrong" way.
Christian Skofteland [EMAIL PROTECTED] ----- Original Message ----- From: "Lon Williamson" <[EMAIL PROTECTED]> To: "PDML Pentax Discuss" <[EMAIL PROTECTED]> Sent: Thursday, December 05, 2002 8:01 AM Subject: Third Party Lens focus and a general mount question > I've 3 third party primes. All 3 focus "the wrong way". > And I'm wondering about that a bit. > > AFAIK, Nikon and Pentax both focus to infinity the same > way, and I think the aperature ring works the same, too. > Do Minolta, Canon, and Olympus all do aperature and focus > ass-backwards compared to Nikon and Pentax? > > -Lon >

