Hi Wilt,
Wilt wrote in post #19102116
Thank you for listing comparative prices for 'same lens' in two Canon mounts, Wim. I was curious as to how the US differential 'converted' to EU differential.
As a retired person with EF lenses and bodies, one consideration of changeover is
"What benefits do I get from spending more money on an RF 'same lens' vs. keeping existing EF 'same lens' and using the convertor with added control?" So your thoughts on this point would be enlightening, as you perceive real value in trading up to a native RF lens (vs. the 'same' EF lens).
Well, my experience with EF lenses and mount adapters is that the EF lenses work as well, or better. Better as in slightly faster AF, and of course very good AF, compared to my 5D II. AF is so good, that I found that any incorrectly focused images in general are caused by user error now, not by the camera.
So, why then upgrade to RF?
I think I have to state here that I am a perfectionist, and in addition like the rendering that Canon lenses do in combination with Canon cameras, and, for that matter, Olympus cameras (with speedboosters or adapters
). The latter means I will stick to Canon lenses to start of with, and will ikely keep several of the Canon EF lenses I still own.
The perfectionist in me sees, however, that the RF lenses are really in a class of their own, especially the L lenses, even compared to the EF L lenses. My most used lenses were/are TS-E 17L, 24L, 50L, 85L, 135L and 100-400L.
Now, the EF 85L for starters: that lens truely is awesome, but you really required it to be stopped down to at least F/2. or better F/2.8, to get the corners up to similar levels as the center. Since I really like composing with the object or subject of interest off-centre, that can become a problem for optimum results. In addition it has some spherical aberration (yes, it has some, be it only a little, focus shift), it has rather extreme LoCAs, and it has doubling up of contours in OOF objects in the background, especially in difficult lighting conditions. It also focuses very slowly, and AF with it eats batteries. The RF 85L has effectively none of this, just the slightest bit of LoCAs, doesn't eat batteries, and focuses way faster than its EF sister. It also is tack sharp edge to edge, corner to corner, from wide open already, which I found makes me use F/1.2 way more often than I ever did with the EF, and I am very happy with its rendering even at those large apertures. It also is better at rendering the OOF foreground smoothly, compared to the EF. It wasn't that great with the latter, but the Rf does it beatifully.
The EF 50 F/1.2L I have always considered to be a great lens, despite the focus shift problems it had (which I had fully corrected by Canon, giving instructions personally to the engineer who adjusted it at the service centre - took him several hours to get it right
). Yeah, it also had quite bad corners and edges up to F/2.8, but the rendering it did was incredibly smooth, and OOF areas both in foreground and background were both incredibly smooth. This is from an optical design PoV quite difficult to achieve, as by definition you can either have a smooth OOF background or a foreground, but not both, which basically is caused by the way optic rays travers a lens. It is one of the reasons why the Oly 25 F/1.2 Pro has so many lens elements - it manages this too. Anyway, that lens basically was my most used lens pre EOS R. Since I like the 50 mm FL so much, and saw all the reviews I decided to get the RF 50L, and found that it behaved even better than the Rf 85L with regard to edge and border sharpness wide open, while still maintaining the same renderign style as the EF 50L - that sold it to me, and while I thought I should maybe keep the EF version because of its unique look, I haven't, basically because the RF 50L has that same unique look, but is just way better than the EF.
The RF 24-105L I basically got because I needed a standard type zoom when all that was available in that range was this particular lens. I was worried, because I have owned a few EF 24-105L's, and I never really liked them, basically because I thought they had too much distortion, and got rather mushy in difficult lighting circumstances. I tended to get rid of them when I ran into these problems again (owned 2, tried several more). I found, however, that the RF version is just a great lens, way sharper and way better than the EF versions I ever owned and tried. And if I want to travel light but still FF, it is a great option. It also is only 100 euros more than the EF version, and I got a box-less version, brandnew, for les sthan the EF version, so am very happy with that pricewise and image qualitywise
.
This is how I go about making my decisions, and as long as I can afford it, I will continu adding to or upgrading to my RF lens collection. So far they really have only been very good.
BTW, it also seems that QC for the RF line of lenses is also a class better than the EF lenses. Where you could get a copy that wasn't so great before (I tried and tested, f.e., 6 EF 50 F/1.2Ls before I was happy with one, and 4 100-400L Mk Is), it seems that is no longer the case now. That, I think, is another benefit.
Anyway, HTH, kindest regards, Wim
P.S.: I will retire in a year and a half's time 