I have had the Sigma 2.8/105 EX macro for some time now (bought it from a fellow PDMLer in like-new condition) and I am quite satisfied with it. The focusing direction is not the same as in Pentax lenses but IMO this is not very important in a macro lens. When shooting macro you have to use manual focus - AF tends to hunt annoyingly - which requires you to switch both the lens and the body to manual. But I guess it�s the same with Pentax lenses. Build quality is excellent and so is picture quality. I had the 4/100 Pentax-M macro before and the Sigma has at least the same quality. All the best! Raimo Personal photography homepage at http://www.uusikaupunki.fi/~raikorho
-----Alkuper�inen viesti----- L�hett�j�: Ivan Prenosil <[EMAIL PROTECTED]> Vastaanottaja: [EMAIL PROTECTED] <[EMAIL PROTECTED]> P�iv�: 23. joulukuuta 2002 14:26 Aihe: Which macro lens ? >Hello Pentaxians, > >I desperately need advice - I want to buy macro lens >for my MZ-3, both for shooting macro and portraits. >There are two candidates: > Pentax-FA 100mm/2.8 Macro > Sigma 105mm/2.8 EX >I prefer using Pentax original gear whenever possible, >however this time I am hesitating, there are just too much >reasons why to choose Sigma over Pentax: > >Weight (g): P=600, S=450. >Although Pentax feels very good (once I held it in hands in shop), >considering using on light body (MZ-3) and whole-day trips, >the light weight Sigma seems better choice. > >Handling: >Sigma has much wider focusing ring. >Sigma allows fast switching between MF/AF using focusing ring. > >Lens length (mm): P=103, S=95. >Sigma is slightly better - needs less space in bag. > >Focal length (mm): P=100, S=105. >Sigma is slightly better, both for shooting animals and portraits. > >Price: Sigma is nearly 20 % cheaper. > >Design: absolutely not important, however this particular Pentax lens >does not look much "spectacularly". > >Did I forgot something important ? > >There are some things I know nothing about, so I can't compare them directly >- picture quality (which is the most important) > I usually do 20*30 or 30*40 cm (8*12 or 12*16 inch). >- direction of rotation of focusing ring. > Does Sigma use the correct Pentax style ? >- mechanical construction/quality/durability. > >I asked in several shops, and the Sigma was always praised >as top quality (even by some nearby customers). > >Should I remain "loyal" to Pentax ? Despite all notes above ? >Help !! And thanks for all your comments/advices !! > >Ivan > >
