Originally posted by interested_observer No, don't do it, you will regret your actions - you will ruin your life and your LBA will spin out of control, always looking for your next fix. Just look at what it did to Rico....
I don't suffer from LBA (lens-buying adrenaline) -- I enjoy every minute of it!
Originally posted by Rons Thank you all, i value very high your replies. As for MF, i think that it will be to hard for me
. In you opinion Which could be moust flexible prime lens?
No such thing. Zooms are flexible; primes are usable. The easy advice: Shoot with your kit lens. Run software to see which focal lengths you use most; this can inform your lens-buying decisions. Otherwise, here are some ideas:
* Manual focus ain't no big thang. It takes practice, is all, and maybe a few aids like a split-focus screen and CIF (catch in focus). My delaminating eyeballs depend on CIF with manual lenses, even very fast f/1.2 and f/1.4 glass.
* Manual focus especially ain't no big thang with wide lenses, which have thicker DOF. I really love my M42 Tokina-made 21/3.8. I set the aperture to f/11, prefocus to 2m, and I have DOF from 1m to infinity. Point and shoot!
* When I grab a prime for general shooting, it's usually either 28mm, or 50-55mm, or 200-300mm. My favorite 28 is a fast Vivitar-Komine 28/2 CFWA that cost me all of US$18. An AF equivalent would be the DA31Ltd. 28-31mm gives the same AOV as you looking at the world with just one eye. A fast or slow Fifty (I have several favorites) lets you concentrate on a subject. A 200-300mm forces you to look closely, narrowly. All are great.
* I have a zillion lenses, including ~20 zooms, about half of which are AF. Some of these are indispensible: DA10-17, Tamron 10-24, DA18-250, F35-75, FA100-300 (silver), Lil'Bigma 170-500. I have exactly ONE autofocus prime, the FA50/1.4, my
gotta-get-the-shot lens. I use it much more than the better-rendering and faster K50/1.2; but my slower CZJ Tessar 50/2.8 (12 iris blades) and Macro-Takumar 50/4 (1x) also see much use.
* Various focal lengths are good for certain situations. Besides what I mentioned above: lenses around 14-15-16mm are good for tight spaces. Lenses around 21-24mm are good for many 'scapes. Those around 28-35mm give a 'normal' look. Those around 50-58mm are great for half-body portraiture; 70-90mm for close headshot portraiture; 135mm for further headshots. My most minimal prime kit would contain a 24 or 28, a 50 or 55, and something around 100mm. Another kit might have 20-40-80-150mm glass. See a pettern there?
My recommendations: For an all-purpose beginning prime, get a manual 28 or the DA31Ltd (if budget allows). For shooting low-light action and half-body portraits and all sorts of stuff, the FA50/1.4 can't be beat. For shooting 'scapes, get a manual 24 or the DA21Ltd. Better yet, ask yourself, "What do I want to do that I can't do with what I have?" and consider your answers. Have fun!