Originally posted by filorp Sorry mate but this is just a paralogism - you can explain that way everything....
Let's look at this: a Professional Photographer is one who produces photographs for purposes for which they are paid. Naturally, these photographs need to be of high quality and they need to be able to "get the shot." Thus, equipment is required that facilitates their meeting of these two requirements. The equipment requirements for certain pros in certain fields will vary widely, as will their applications. Pentax, like the other SLR-makers available, produces equipment that is very capable of producing high-quality results, and depending on the specific needs of the field the pro works in it may be an available option (or even, in some cases, the best option). There may be cases where a pro finds that a different brand gives them slightly wider options or slightly higher end-quality but they may choose to work with Pentax instead because they prefer to work with their products for various reasons, and as long as the end results are satisfactory, the gear is sufficient.
I hardly see how this is
less logical than once-and-for-all stating that Pentax (or any other brand) is useless for true pros because you can't get modern autofocus 24mm f1.4, 35mm f1.4, and 135mm f1.8 lenses for K-mount. I'm not sure which fallacy to look at first... the assumption that these lenses are required for pro work and that they are the only ones important in deciding a system's relevance to pros, or the simple fact that NONE of the systems available offer this lineup. Change the 135mm to f2 and you've got two options, but still, that first assumption is the really puzzling one.