Tosh. An aspherical fluorite F1.0 lens is very good, its brilliant, but it is also extremely expensive, Canon make them. Chris. Question: What happens to me when I die? Response: What happens to a cat when it dies? Answer: You throw it away. Response and answer: You are a clever cat! God's Anathema :> -----Original Message----- :> From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx [mailto:owner- :> photoforum@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Rui Noronha :> Sent: 10 May 2005 19:56 :> To: List for Photo/Imaging Educators - Professionals - Students :> Subject: F1.8 vs F1.4 (The return) :> :> :> Olá! :> :> :> :> My english is not the best, so believe me when i say that it was not my :> intention to break any of the forum rules. I 'm really sorry, however you :> could saw a small smile in my face, when i saw the storm that i caused in :> the forum. :> :> :> :> F1.8 VS F1.4: :> :> i still believe that is possible to compare the two lens. :> :> i can re-phrase the question: what is the importance of one more group of :> lens? - Because this is the great estructural difference. What does a SUV :> and a Ferrari have in commun? They satisfay different needs. :> :> Do i have the same picture shooting with the F1.8 or with the F1.4, at :> the same aperture?- I don't thing so. I 'm not asking which is a better :> picture. :> :> :> :> Thank you Bob Talbot. I will make my own test, but i allready know that's :> allmost impossible to see the difference at desarmed- eye. It's necessary :> lab. equipment for the task. Just because you can't see, it doesn't means :> that there is no better lens. :> :> :> :> My own opinion: :> :> I believe F1.8 is a better lens. But, this is not based on science, on :> facts. it's the difference between "to like" and to have a "value :> judgement", that is based on rational thoughts ( like Descartes said). :> :> In lens history, in a certain period of time, there were a speed lens :> race (it also happened with the cameras- the record is for olympus). At :> that time, speed meant less time of exposure and more portability. It :> doesn't means quality of image. The amazing F1.2 and F1.4 speed lens are :> a product of that time.They compromise a lot of things. F1.4 has problems :> of distorction, flare, sharpness and so on. It's cousin F1.2 is even :> worst. despite that, i give 4 (on 5)stars to the f1.4. :> :> The winner is f 1.8 ...in sunny days... :> :> :> :> Até breve ( in portuguese, that means enjoy life taking great pictures) :> :> Rui Noronha :> :> www.rnphotography.com :> :> :> :> :> :> :> :> :> :> :> :> _______________________________________________ :> Join Excite! - http://www.excite.com :> The most personalized portal on the Web! :> :>
