> > I'm a big fan of the 24/35/50/85/105 progression, but >everyone has their own preferences. >chris
>Chris, isn't the "classical" progression >24/35/50/85/135/200/300? Andre >I thought 105mm was part of the "classical" progression. At >least for 35mm. >Len Well, the way I see it, if you have and use a 85mm, then you should go to the 135mm (prog. factor 1.5). 105mm is certainly a "classical" focal lenght, but it fits as the sole portrait lens in a rather steep progression where you go from 50mm/55mm to 100mm/105mm and then 180mm/200mm. If you are in a studio, and make a living out of portrait, it's a different story: 85mm, 100/105mm, 120mm (if into Pentax), 135mm. It all depends on your needs and the money you have. A few threads relating to this during the last few weeks. Even if you go out with only one lens, you will have many differents opinions on the best one. From 28mm (see the latest high-class P&S) to 50mm (and some prefer a short tele). It all depends on your "personal view" or "brain angle" to use metaphores... Once you take more than one lens (always talking about primes), you have to decide on a "progression factor". It's good to know the real focal lenght of the lenses if you want to play thinking about progressions: with Pentax, 18 is 19, 24 is 25, 40 is 42, 50 is 52... I'll keep the official Pentax focal lenghts in these examples: prog. factor 3: 35/105 28/85 40/120 50/150 (the last two only for pentaxians) prog. factor 2: 24/50/100/200/400 28/55/105/200/400 20/40/85/150 15/30/55/etc prog. factor 1.5: 24/35/50/85/135/200/300/500 (this is I think THE classical prog.) Sometimes you have to make it with the closest focal lenght available (i.e. 500mm). Some prefer a slow progression with the wide angles and then a steeper one. Portraitist prefer a slow progression around mid-tele I guess... Most of us have to decide between 2X and 1.5X Andre -- - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

