MalVeauX wrote in post #16597793
Simply get the 85L and a crop, and you won't have to worry about the $10,000 135mm F1.4 prime.
This recommendation does not make sense to me. Am 85mm f1.4 on a 1.6 crop would not give the same depth of field as a 135mm f1.4 on a full frame. Even though the images would be framed the same way (given the same shooting distance), the fact that you would be using a crop sensor would yield a 1 1/3 stop difference in DOF. So, an 85mm set at f1.4, when used on a 1.6 crop sensor, would yield the "same" visual results as an 135mm at f2.2.
Could you please explain the rationale you used to come up with 85mm f1.4 being equal to 135mm at 1.4 on a crop (with respect to DOF)? It seems as though you completely ignored the different DOF that a smaller sensor gives, all else being equal.
Oh, yeah - I would never buy a 135mm f1.4
I would have almost no use for such a lens; for what I shoot at 135mm I am usually trying to maximize DOF, hence no need for such a lagre aperture.
"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".