On Wed, Feb 25, 2009 at 09:37:35PM +0330, Amirkambiz Hamedanizadeh wrote: # Dear Pentax colleagues, # # I want to buy a lens for indoor and night shooting. I wonder which of the # following lenses is better: # . Pentax SMCP-FA 50mm f/1.4 Lens # . Pentax SMC DA Lens - 40 mm - F/2.8 # # The body is K10D, and the other lens that I have is Pentax 18-250. # Is there lots of difference between F1.4 to F2.8?
There is a huge amount of difference. If you can shoot at 1/30 sec at 1.4 you'll be at 1/8 second at 2.8. There's a little difference in cost, new the 50 is about $200, I think I paid $250 for my 40 from prodigital2000 on ebay. If you're happy with manual focus, and especially manual exposure, you can get 50mm lenses very inexpensively, however the PFA 50/1.4 goes for about $185 used, so you might as well buy it new. For indoors and night photography the 50/1.4 is probably your better choice, unless you're using a flash. If there's a lot of light and you're walking around a city during the daylight, the 40 is a lot of fun to use, especially on a small body (*ist, K100, K2000 ...). -- Photographs are like sentences, the best ones have both subjects and verbs. Larry Colen [email protected] http://www.red4est.com/lrc -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
