garyvot wrote:
Dan, you mentioned earlier that you were not interested in keeping your EF glass if you move to full frame mirrorless and I am sure you have good reasons.
But I assume you have been using the EF 16-35mm f/4.0L IS with good results on the 5Ds R?
Hypothetically, I wonder if you have considered adapting this or other EF lenses using Canon's drop-in filter mount adapter? There are circular polarizer and variable ND filters available and apparently the Breakthrough Photography filters are considered good. In any case, I always thought that if I were doing landscape work or outdoor videography, that this setup would have some benefits even over native glass....Show more →
the 16-35 f/4 is one lens that I have considered keeping and using with an adapter on the likely Sony system. It is a lens that is important to me but which I don’t use all that much… and almost always for landscape photography where I’m focusing manually anyway.
(Why Sony? For one thing, I’m disappointed that Canon has fallen way behind on the high MP sensors. The R5/R5ii both have less MP resolution than my decade-old 5DsR!)
I’m pretty unlikely to use a polarizer on such a wide angle lens for reasons that you can probably imagine.
Ltgk20 wrote:
Finally, what does his age have to do with anything?
Maybe taking this sentence out of context and not really intended as a direct response to the poster. That said….
I think 73 is a huge reason for OP to do something sooner than later. If he’s curious about other systems and has the resources, why wait? Why ask here? Just do it already!
He’s pushing into the age range where things can rapidly change for the worse, based on my observations of relatives transitioning through their 70s and 80s.
Get the gear, get the 4x4 and do it all while you still can!
Apr 05, 2026 at 06:23 PM
Steve Spencer Online • • • • • • • Upload & Sell: On
gdanmitchell wrote:
the 16-35 f/4 is one lens that I have considered keeping and using with an adapter on the likely Sony system. It is a lens that is important to me but which I don’t use all that much… and almost always for landscape photography where I’m focusing manually anyway.
(Why Sony? For one thing, I’m disappointed that Canon has fallen way behind on the high MP sensors. The R5/R5ii both have less MP resolution than my decade-old 5DsR!)
I’m pretty unlikely to use a polarizer on such a wide angle lens for reasons that you can probably imagine.
Certainly keeping the Canon EF 16-35 f/4L and adapting it is a good option, but you might also want to consider the Sony/Zeiss 16-35 f/4. I have owned that lens and was quite happy with it. I think you might find it does everything you need and it is not an expensive lens at this point at all. You can sell your EF 16-35 f/4L, buy that lens and definitely have money left over.
I can see why someone who wants high resolution would be unhappy with Canon's turn in especially the "5" cameras with the R5 and R5 II emphasizing speed and moderately high resoltion instead of maximum resolution. I don't know if Canon will ever emphasize maximum resolution again, but I wouldn't rule it out either. Still if you are going to eventually replace all your current lenses, then I can see why you might consider switching systems at this point. It won't be free--system change never comes without costs--but I can see why you consider the costs potentially worth it.
gdanmitchell wrote:
…
That’s what I’m still pondering. My current system covers 16mm to 400mm (a bit longer with a 1.4x TC), is based on zoom lense, accommodates one Pentax medium format zoom lens with a Mirex TX adapter, and includes a 100mm macro. I decided some time ago that I do not need /2.8 (much less f/2) zoom lenses, since my dominant use of this system is landscape photography plus some wildlife photography.
But I’ll stop there since this is a Canon forum and a Canon subject… and that starts to look like a topic more appropriate for Sony forum! :-)
Hi Dan, this is the right place to ask, as I don’t plan on switching. I’d really miss my RF 14-35 and my RF 100-500 i.e.. Still, I’d be interested to hear your personal opinion (I admire your photos here and on Flickr) on what you’d buy for your needs from Sony, let’s say the first 3-5 lenses, if you were starting completely from scratch. You can also send me a P.M Thanks, Tom
garyvot wrote:
Dan, you mentioned earlier that you were not interested in keeping your EF glass if you move to full frame mirrorless and I am sure you have good reasons.
But I assume you have been using the EF 16-35mm f/4.0L IS with good results on the 5Ds R?
Hypothetically, I wonder if you have considered adapting this or other EF lenses using Canon's drop-in filter mount adapter? There are circular polarizer and variable ND filters available and apparently the Breakthrough Photography filters are considered good. In any case, I always thought that if I were doing landscape work or outdoor videography, that this setup would have some benefits even over native glass....Show more →
I am a fan of EF with the variable speed adapters. My Ts17, ts24, and ef 24-105 continue to be great lens plus my zeiss distagons. The var adapter means only one filter for 1-8stops and the same for all lens and cameras. I have taken to using a clip in 4 stop in the back, so that I can use my cpl at the same time and really stop down in the daytime. RF lens are generally not better than EF lens for landscape. You don't need a/f, or really fast, or big barrell distortion correction.
I regret selling my 5dsr because of the extra mpx and no aa. It was the pinnacle of canon landscape, to date.
ctgoldwing wrote:
At 78, a couple of years ago I made the decision to go from EF to RF. I gave 2 of my sons who shoot EF gear my bodies and extensive lens kit - including big whites. I have since gone with an R1 and R5 II and am accumulating lenses as I see a need (want). I don't regret it a second. I find now I have no need for some of the lenses I had. I am more selective in the primes and I am really enjoying the versatility of the zooms. I am reexploring and trying new facets of photography. Its fun all over again.
Scott Stoness wrote:
I am a fan of EF with the variable speed adapters. My Ts17, ts24, and ef 24-105 continue to be great lens plus my zeiss distagons. The var adapter means only one filter for 1-8stops and the same for all lens and cameras. I have taken to using a clip in 4 stop in the back, so that I can use my cpl at the same time and really stop down in the daytime. RF lens are generally not better than EF lens for landscape. You don't need a/f, or really fast, or big barrell distortion correction.
I regret selling my 5dsr because of the extra mpx and no aa. It was the pinnacle of canon landscape, to date....Show more →
You could join the "multi-system-owner" group like myself and have a camera in each system you're interested in.
I currently own the following cameras:
- Canon R6II (several RF lenses as well)
- Canon 7dmk2 (severa EF lenses as well)
- Sony A7c (Tamron FF lenses)
- Sony A7iv (Tamron FF lenses)
- OM System OM-5 (several Panasonic, Olympus and Pan/Leica lenses)
I also own a few old Nikon D200's with a few Nikon lenses, but I don't really count this as an active system that I use like my other cameras.
As a Canon/Sony full frame owner, there are several things I like/dislike from both systems. Canon ergonomics are outstanding, while Sony feels like a sharp, plastic toy (the A7iv). AF tracking on my Sony's are way better than my Canon. Lens selection on Sony is supposed to be better (yes, I love my Tamrons), but (most) of the RF lenses I've used have been fantastic (except for the RF 16-28mm f2.8 STM, which I'm not a fan of). With Sony you have to work at getting a good image (must shoot manual, RAW + JPEG, manual ISO, etc), while Canon seems to be much easier to get good images almost effortlessly (great image algorithms in aperture priority, auto ISO, etc). Side by side comparison, my A7iv does produce better IQ than my R6II; on a pixel-peeping level though.
Those are my opinions based on my personal experience using my cameras, my lenses. I'm not a fan-boy, and I'm not a paid social media marketing influencer like many here on FM.
